ヘルプ

詳細検索

論文検索サイト

トップ
鉄と鋼
Vol. 109 (2023), No. 5

鉄と鋼 Vol. 109 (2023), No. 5

Grid List Abstracts

オンライン版ISSN:	1883-2954
冊子版ISSN:	0021-1575
発行機関:	The Iron and Steel Institute of Japan

Backnumber

Vol. 110 (2024)
1. No.15
2. No.14
3. No.13
4. No.12
5. No.11
6. No.10
7. No.9
8. No.8
9. No.7
10. No.6
11. No.5
12. No.4
13. No.3
14. No.2
15. No.1
Vol. 109 (2023)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 108 (2022)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 107 (2021)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 106 (2020)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 105 (2019)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 104 (2018)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 103 (2017)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 102 (2016)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 101 (2015)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 100 (2014)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 99 (2013)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 98 (2012)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 97 (2011)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 96 (2010)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 95 (2009)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 94 (2008)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 93 (2007)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 92 (2006)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 91 (2005)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 90 (2004)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 89 (2003)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 88 (2002)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 87 (2001)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 86 (2000)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 85 (1999)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 84 (1998)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 83 (1997)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 82 (1996)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 81 (1995)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 80 (1994)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 79 (1993)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 78 (1992)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 77 (1991)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 76 (1990)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 75 (1989)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 74 (1988)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 73 (1987)
1. No.16
2. No.15
3. No.14
4. No.13
5. No.12
6. No.11
7. No.10
8. No.9
9. No.8
10. No.7
11. No.6
12. No.5
13. No.4
14. No.3
15. No.2
16. No.1
Vol. 72 (1986)
1. No.16
2. No.15
3. No.14
4. No.13
5. No.12
6. No.11
7. No.10
8. No.9
9. No.8
10. No.7
11. No.6
12. No.5
13. No.4
14. No.3
15. No.2
16. No.1
Vol. 71 (1985)
1. No.16
2. No.15
3. No.14
4. No.13
5. No.12
6. No.11
7. No.10
8. No.9
9. No.8
10. No.7
11. No.6
12. No.5
13. No.4
14. No.3
15. No.2
16. No.1
Vol. 70 (1984)
1. No.16
2. No.15
3. No.14
4. No.13
5. No.12
6. No.11
7. No.10
8. No.9
9. No.8
10. No.7
11. No.6
12. No.5
13. No.4
14. No.3
15. No.2
16. No.1
Vol. 69 (1983)
1. No.16
2. No.15
3. No.14
4. No.13
5. No.12
6. No.11
7. No.10
8. No.9
9. No.8
10. No.7
11. No.6
12. No.5
13. No.4
14. No.3
15. No.2
16. No.1
Vol. 68 (1982)
1. No.16
2. No.15
3. No.14
4. No.13
5. No.12
6. No.11
7. No.10
8. No.9
9. No.8
10. No.7
11. No.6
12. No.5
13. No.4
14. No.3
15. No.2
16. No.1
Vol. 67 (1981)
1. No.16
2. No.15
3. No.14
4. No.13
5. No.12
6. No.11
7. No.10
8. No.9
9. No.8
10. No.7
11. No.6
12. No.5
13. No.4
14. No.3
15. No.2
16. No.1
Vol. 66 (1980)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 65 (1979)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 64 (1978)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 63 (1977)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 62 (1976)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 61 (1975)
1. No.15
2. No.14
3. No.13
4. No.12
5. No.11
6. No.10
7. No.9
8. No.8
9. No.7
10. No.6
11. No.5
12. No.4
13. No.3
14. No.2
15. No.1
Vol. 60 (1974)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 59 (1973)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 58 (1972)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 57 (1971)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 56 (1970)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 55 (1969)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 54 (1968)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 53 (1967)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 52 (1966)
1. No.13
2. No.12
3. No.11
4. No.10
5. No.9
6. No.8
7. No.7
8. No.6
9. No.5
10. No.4
11. No.3
12. No.2
13. No.1
Vol. 51 (1965)
1. No.13
2. No.12
3. No.11
4. No.10
5. No.9
6. No.8
7. No.7
8. No.6
9. No.5
10. No.4
11. No.3
12. No.2
13. No.1
Vol. 50 (1964)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 49 (1963)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 48 (1962)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 47 (1961)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 46 (1960)
1. No.14
2. No.13
3. No.12
4. No.11
5. No.10
6. No.9
7. No.8-supl
8. No.7
9. No.6
10. No.5
11. No.4
12. No.3
13. No.2
14. No.1
Vol. 45 (1959)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 44 (1958)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 43 (1957)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 42 (1956)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1
Vol. 41 (1955)
1. No.12
2. No.11
3. No.10
4. No.9
5. No.8
6. No.7
7. No.6
8. No.5
9. No.4
10. No.3
11. No.2
12. No.1

キーワードランキング

21 Nov. (Last 30 Days)

鉄と鋼 Vol. 109 (2023), No. 5

石灰傾斜配合造粒の溶融同化挙動に及ぼす影響

大菅宏児, 足立毅郎, 山﨑慎太郎, 宮川一也

pp. 355-364

DOI:

10.2355/tetsutohagane.TETSU-2022-108

抄録

Sinter plant is becoming ‘‘a waste eater’’ that actively recycle the raw materials generated in the steelworks. Especially, the recycling demand of slags in steelmaking processes has been increasing. These slags, which contains substances with a high melting point, is well known to reduces the fluidity of the melt. We recognized that mixture of two types of granulates, a donor of melt (High CaO/Fe₂O₃) and a receptor of melt (Low CaO/Fe₂O₃), formed a homogeneous sinter cake when using parallel granulation process. By adjusting the adhesive layer components of two types of granulates, the melt from donor moves to receptor and assimilation can be promoted. So, we have developed the granulation method with inclined mixing of limestone that has improved both productivity and sinter strength even when using steelmaking slag. The promotion of melt assimilation state has been proved by using SEM with mineral phase analysis function and X-ray CT.

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

石灰傾斜配合造粒の溶融同化挙動に及ぼす影響

Bibtex

Ris

高炉羽口におけるラジカル化学発光測定を活用した微粉炭燃焼率推定手法の開発

盛家晃太, 髙橋功一, 村尾明紀, 佐藤健, 深田喜代志

pp. 365-376

DOI:

10.2355/tetsutohagane.TETSU-2022-121

抄録

To develop novel technologies for reducing CO₂ emission from ironmaking process, steelmaking companies in Japan are engaging in the national project called COURSE50. In this project, a large amount of H₂ is co-injected into blast furnace (BF) with pulverized coal (PC). In order to clarify how the co-injection affects PC combustibility, PC combustibility should be measured in COURSE50 BF. However, it was difficult to measure PC combustibility in BF without bothering operation. Therefore, we developed the non-contact measurement method for PC combustibility (η_PC) by utilizing chemi-luminescence spectra of PC combustion field in the lab-scale combustion furnace. We also applied the method to the COURSE50 experimental BF to ensure the accuracy of the method. And then we found that;

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

高炉羽口におけるラジカル化学発光測定を活用した微粉炭燃焼率推定手法の開発

Bibtex

Ris

高張力鋼の冷間圧延におけるスリップ発生機構の解明

志村眞弘, 河西大輔, 大塚貴之

pp. 377-386

DOI:

10.2355/tetsutohagane.TETSU-2022-132

抄録

The skidding between rolls and steel strip is more likely to occur in the cold rolling process in accordance with an increase of tensile strength of the material following the customers' demands. This happens when the work rolls rotates faster than the longitudinal speed of the strip at the exit of the roll-bite. This phenomenon leads to not only the strip surface defection but the thickness nonuniformity and thus the aim of this study is defined to clarify the mechanism behind the phenomenon. In order to clarify the factor causing the skidding, the cold rolling experiments using two different steel grades, namely the Low Carbon Steel (LCS) and the Advanced High Strength Steel (AHSS) having respectively 270 and 980 MPa tensile strength, have been conducted, which was then assessed by the numerical analyses and the comparison of the forward slip characteristics was made between these two steel grades. It has been revealed that the forward slip is decreased under the low friction coefficient condition with an increase of the rolling reduction. In addition, the friction coefficient of the AHSS is lower than that of the LCS. The existence of the micro-plasto-hydrodynamic lubrication in the AHSS suggests a decrease in friction coefficient, which results in the exhibit of skidding, which was not observed in the LCS.

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

高張力鋼の冷間圧延におけるスリップ発生機構の解明

Bibtex

Ris

鋼材組織制御による疲労き裂進展特性の改善とその効果の一検証

兵藤義浩, 柚賀正雄, 栗原康行, ドアンティーフィン, 﨑本隆洋, 村上善明, 後藤浩二, 田川哲哉

pp. 387-397

DOI:

10.2355/tetsutohagane.TETSU-2022-129

抄録

The fatigue crack propagation properties of newly-developed SM490 grade steels were investigated in comparison with a conventional steel of the same grade. The fatigue crack propagation rate of the developed steel in Region II of the da/dN-ΔK relationship was suppressed to about 1/2 that of the conventional steel, and its ΔK_th value was more than twice as large as in the conventional steel. However, fatigue crack resistance for long crack propagation does not necessarily improve the fatigue life in a condition of increasing ΔK from a small defect, which is usually detected in practical fatigue damage in actual structures in service. The developed steels were subjected to surface crack propagation tests using specimens with artificial small defects to examine their potential under more practical conditions. The fatigue life of the developed steel was about three times longer than that of the conventional steel. A detailed analysis of the surface crack propagation revealed crack propagation below ΔK_th only in the developed steels, which suggested the so-called “short crack regime” in a fatigue crack. The crack propagation from a surface defect that deviated from long crack behavior was convincingly explained by the corrected threshold using the R-curve model of a short crack proposed in the previous literature. Based on the experimental fatigue life improvement and its analytical estimation of the propagation resistance in the short crack regime, the effect of the ΔK_th value for a long crack in the initial propagation stage just after fatigue crack initiation was discussed.

他の人はこちらも検索

Large-scale Molecular Dynamics Study on Evolution of Grain Boundary Groove of Iron

ISIJ International Vol.52(2012), No.12

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

鋼材組織制御による疲労き裂進展特性の改善とその効果の一検証

Bibtex

Ris

熱延鋼板(SPHC)へのグリットブラスト加工による表面硬化の微視的研究

伊藤敦広, 鎌田康平, 今福宗行

pp. 398-405

DOI:

10.2355/tetsutohagane.TETSU-2022-123

抄録

The effect of grit blasting on the surface and depth properties of hot rolled low carbon steel was investigated. The residual stress depth profile and dislocation density of the specimen were determined using X-ray diffraction. Dislocation density was evaluated by modified Williamson-Hall / modified Warren-Averbach method. Both dislocation density and hardness are highest at the blasted surface and reduce gradually with depth. Compressive residual stress is induced in the blasted surface having a maximum value at a depth of 60 µm from the top surface. This is followed by a steady decrease of compressive stress with depth and finally become tensile. In this experiment, the square root of the dislocation density is proportional to the hardness, and the hardness of the top surface, which could not be measured due to the roughness of the surface, can be estimated. The coefficient α in the Bailey-Hirsch equation was derived from the slope obtained by plotting the shear stress calculated from the hardness against the square root of the dislocation density.

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

熱延鋼板(SPHC)へのグリットブラスト加工による表面硬化の微視的研究

Bibtex

Ris

炭化物析出状態の異なる焼戻しマルテンサイト鋼における水素脆化き裂発生点とその主要因子の比較

上村直紀, 千葉隆弘, 高井健一

pp. 406-416

DOI:

10.2355/tetsutohagane.TETSU-2022-093

抄録

The dependence of crack initiation sites and main factors causing hydrogen embrittlement fracture on carbide precipitation states has been investigated for tempered martensitic steels with the same tensile strength of 1450 MPa. Notched specimens charged with hydrogen were stressed until just before fracture and subsequently unloaded. The crack initiation site exhibited intergranular (IG) fracture at 21 μm ahead of the notch tip as observed by scanning electron microscopy (SEM) for 0.28% Si specimens with plate-like carbide precipitates on prior austenite (γ) grain boundaries. This crack initiation site corresponded to the vicinity of the maximum principal stress position as analyzed by a finite element method (FEM). The initiation site corresponded to the triple junction of prior γ grain boundaries as analyzed by electron backscattered diffraction (EBSD). In contrast, the crack initiation site exhibited quasi-cleavage (QC) fracture at the notch tip for 1.88% Si specimens with fine and thin carbide particles in the grains. This crack initiation site corresponded to the maximum equivalent plastic strain site obtained by FEM. Additionally, the crack initiated on the inside of prior γ grain boundaries and propagated along the {011} slip plane with higher kernel average misorientation (KAM) values as analyzed by EBSD. These findings indicate that differences in carbide precipitation states changed the crack initiation sites and fracture morphologies involved in hydrogen embrittlement depending on mechanical factors such as stress and strain and microstructural factors.

他の人はこちらも検索

鋳片浸漬冷却時の変態，3次元熱処理変形および応力発生の各挙動に及ぼす冷却条件およびγ粒サイズの影響

鉄と鋼 Vol.109(2023), No.5

リン濃縮スラグからのリンの分離

鉄と鋼 Vol.109(2023), No.1

Application of Variable Gauge Rolling Technology for Plate to Reduce the Head Impact

ISIJ International Vol.63(2023), No.4

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

炭化物析出状態の異なる焼戻しマルテンサイト鋼における水素脆化き裂発生点とその主要因子の比較

Bibtex

Ris

鋳片浸漬冷却時の変態，3次元熱処理変形および応力発生の各挙動に及ぼす冷却条件およびγ粒サイズの影響

磯部浩一, 熊谷優雅, 佐藤匠

pp. 417-428

DOI:

10.2355/tetsutohagane.TETSU-2022-112

抄録

To optimize reverse transformation treatment, which is effective in preventing hot rolling cracking in the CC-HCR (Continuous Casting - Hot Charge Rolling) process, three-dimensional metallo-thermo-mechanical analyses were performed. The metallo-thermo-mechanics and a CCT (Continuous Cooling Transformation) diagram estimation method using JMatPro were used to obtain the required cooling time for reverse transformation in immersion cooling with water jet and to elucidate the effects of nonuniform cooling and γ grain size on thermal deformation and stress generation behaviors during cooling and the mechanisms of these events.

他の人はこちらも検索

炭化物析出状態の異なる焼戻しマルテンサイト鋼における水素脆化き裂発生点とその主要因子の比較

鉄と鋼 Vol.109(2023), No.5

リン濃縮スラグからのリンの分離

鉄と鋼 Vol.109(2023), No.1

Application of Variable Gauge Rolling Technology for Plate to Reduce the Head Impact

ISIJ International Vol.63(2023), No.4

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

鋳片浸漬冷却時の変態，3次元熱処理変形および応力発生の各挙動に及ぼす冷却条件およびγ粒サイズの影響

Bibtex

Ris

鋼材の疲労亀裂進展挙動に及ぼす繰返し軟化の影響

米澤隆行, 森孝茂, 堤成一郎

pp. 429-437

DOI:

10.2355/tetsutohagane.TETSU-2022-124

抄録

In this paper, the effect of cyclic softening properties on fatigue crack propagation behavior was investigated. Ferrite and ferrite-pearlite steels with different cyclic softening properties were produced by cold rolling process. The cold-rolled steels showed cyclic softening, and the cyclic softening rate increased as the cold reduction rate increased. As a result of fatigue crack propagation tests using CT specimens, the fatigue crack growth rate decreased with increasing the cold reduction rate. The crack growth rate and the cyclic softening rate showed a good correlation regardless of the microstructure. The cold-rolled steels showed crack closure/opening behavior, and the crack opening load increased with increasing cold reduction rate. In addition, the difference in fatigue crack propagation rates of cold-rolled steels was explained by effective stress intensity factor range. From these results, the decrease of fatigue crack growth by cold rolling was considered to be mainly due to the suppression of crack opening by cyclic softening near the fatigue crack tip.

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

鋼材の疲労亀裂進展挙動に及ぼす繰返し軟化の影響

Bibtex

Ris

Mo鋼とV鋼における合金炭化物の水素トラップと析出

谷口俊介, 亀谷美百合, 小林由起子, 伊藤一真, 山﨑真吾

pp. 438-449

DOI:

10.2355/tetsutohagane.TETSU-2022-130

抄録

Martensitic steels of Fe-0.1%C-2%Mn-1.6%Mo alloy and Fe-0.1%C-2%Mn-0.2%V alloy were subjected to tempering at 873 K to investigate hydrogen trapping of Mo carbides and V carbides. We carried out the detail analysis of the alloy carbides by atomic-resolution scanning transmission electron microscopy and atom probe tomography, and the evaluation of hydrogen trapping energy by ab initio calculation. The hydrogen content of the Mo added steel tempered for 1.8 ks increases from that of the quenched Mo added steel and the hydrogen content monotonically decreases as the tempering time increases. The hydrogen content of the V added steels increases during the tempering to 7.2 ks and then keeps almost constant. Plate-shaped B1-type Mo carbide with a chemical composition of MoC_0.50 is precipitated in the Mo added steel tempered for 3.6 ks. Needle-shaped HCP Mo₂C is precipitated and the B1-type Mo carbide decreases in the Mo added steel tempered for 14.4 ks. Plate-shaped B1-type V carbides with a chemical composition of VC_0.75 is precipitated in the V added steel tempered for 14.4 ks. We found the positive correlation between the hydrogen content and the product of the interface area and the carbon vacancy fraction of B1-type alloy carbide. The hydrogen trapping energy of the carbon vacancy at the interface between BCC-Fe and B1-type Mo carbide is higher than that of the interstitial sites in BCC-Fe. These results suggest that the main trapping site in the tempered Mo added steel is the carbon vacancy at the interface of B1-type MoC_0.50, not HCP Mo₂C.

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

Mo鋼とV鋼における合金炭化物の水素トラップと析出

Bibtex

Ris

硫化物の溶融温度に関する現象論的理解

上島良之

pp. 450-455

DOI:

10.2355/tetsutohagane.TETSU-2022-102

抄録

A certain relation was found between melting temperature of sulfides and their bond strength index. It can be used as a convenient method to know the melting temperature of multi-component sulfides for which thermodynamic information is lacking. These results are similar to those of the previously reported multi-component oxides and fluorides.

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

硫化物の溶融温度に関する現象論的理解

Bibtex

Ris

マーカー実験法によるAl溶融メッキ時に生成するFe₂Al₅相の成長機構の解明

篠塚計, 江阪久雄

pp. 456-461

DOI:

10.2355/tetsutohagane.TETSU-2022-127

抄録

In order to investigate the formation mechanism of η phase (Fe₂Al₅ phase) during aluminizing process, a so-called marker experiment has been developed in this study. Angular and small MgO particles have been placed firmly on the surface of iron plate. Using iron-saturated aluminum melt bath, which was kept at 700 ºC, an iron specimen was dipped for 11 minutes. Then the cross section was metallographically analyzed. MgO particles were found on the boundary between the Al-Fe alloy region and η phase. This fact indicated that Al diffuses into the α-iron but Fe does not diffuse out into the aluminum melt. It also indicated that the formation site of η phase is on the η/α-iron interface. Since the thickness of η phase is proportional to the square root of dipping time, this process is controlled by the volume diffusion of Al atoms in the η phase. It also found that the thickness of iron plate increased with increasing dipping time. This can be explained semi-quantitatively taking into account of the change in the phase and volume between α-iron and η phase.

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

マーカー実験法によるAl溶融メッキ時に生成するFe₂Al₅相の成長機構の解明

Bibtex

Ris

pp. Contents-

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

Bibtex

Ris

Cover

pp. Cover-

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

Bibtex

Ris

Editorial Board and Copyright Page

pp. Editorial-

ブックマーク

詳細

PDFダウンロード

SNSによる共有

論文タイトル

Bibtex

Ris

論文アクセスランキング

21 Nov. (Last 30 Days)

In-situ Observation of Precipitation and Growth of MnS Inclusions during Solidification of a High Sulfur Steel

ISIJ International 早期公開
Measurement of Bubble Size Distribution and Generation Position of Bubbles Generated during Smelting Reduction of Iron Oxide-containing Slag

ISIJ International 早期公開
Injection of hydrogenous gases into the blast furnace tuyeres for reducing CO₂ emissions: a review

ISIJ International 早期公開
Development of a Low-carbon Sintering Process Technology and Its Application to a Pilot-scale Sintering Testing

ISIJ International Vol.64(2024), No.13
凝固過程における溶鋼中からAl₂O₃上へのMnSの晶出挙動

鉄と鋼早期公開
Molecular dynamics simulation of viscosity of the CaO, MgO and Al₂O₃ melts

ISIJ International 早期公開
Fe–(0.5–2.0)%Al–2.0%Mn合金の一方向凝固におけるAlNの晶出挙動に及ぼすAl濃度の影響

鉄と鋼早期公開
凝固過程のミクロ偏析による溶質濃度分布の定量的理解

鉄と鋼早期公開
SOKD: A soft optimization knowledge distillation scheme for surface defects identification of hot-rolled strip

ISIJ International 早期公開
Reduction and Carburization Behaviors of Iron Oxide Composite with Iron Carbide and Free Carbon

ISIJ International 早期公開

この機能はログイン後に利用できます。
下のボタンをクリックしてください。

鉄と鋼 Vol. 109 (2023), No. 5

キーワードランキング

reduction caco3 in electric furnace

kinetics of decarburization of liquid iron with high concentration ofcarbon

kinetics of decarburization of liquid iron by ar-coz gasmixture

ahss

charpy impact chemistry

dual phase steel

foamy slag in eaf

kinetics of decarburization of liquid iron by

ladle furnace flicker

scm440

鉄と鋼 Vol. 109 (2023), No. 5

石灰傾斜配合造粒の溶融同化挙動に及ぼす影響

SNSによる共有

高炉羽口におけるラジカル化学発光測定を活用した微粉炭燃焼率推定手法の開発

SNSによる共有

高張力鋼の冷間圧延におけるスリップ発生機構の解明

SNSによる共有

鋼材組織制御による疲労き裂進展特性の改善とその効果の一検証

SNSによる共有

熱延鋼板(SPHC)へのグリットブラスト加工による表面硬化の微視的研究

SNSによる共有

炭化物析出状態の異なる焼戻しマルテンサイト鋼における水素脆化き裂発生点とその主要因子の比較

SNSによる共有

鋳片浸漬冷却時の変態，3次元熱処理変形および応力発生の各挙動に及ぼす冷却条件およびγ粒サイズの影響

SNSによる共有

鋼材の疲労亀裂進展挙動に及ぼす繰返し軟化の影響

SNSによる共有

Mo鋼とV鋼における合金炭化物の水素トラップと析出

SNSによる共有

硫化物の溶融温度に関する現象論的理解

SNSによる共有

マーカー実験法によるAl溶融メッキ時に生成するFe2Al5相の成長機構の解明

SNSによる共有

Contents

SNSによる共有

Cover

SNSによる共有

Editorial Board and Copyright Page

SNSによる共有

論文アクセスランキング

In-situ Observation of Precipitation and Growth of MnS Inclusions during Solidification of a High Sulfur Steel

Measurement of Bubble Size Distribution and Generation Position of Bubbles Generated during Smelting Reduction of Iron Oxide-containing Slag

Injection of hydrogenous gases into the blast furnace tuyeres for reducing CO2 emissions: a review

Development of a Low-carbon Sintering Process Technology and Its Application to a Pilot-scale Sintering Testing

凝固過程における溶鋼中からAl2O3上へのMnSの晶出挙動

Molecular dynamics simulation of viscosity of the CaO, MgO and Al2O3 melts

Fe–(0.5–2.0)%Al–2.0%Mn合金の一方向凝固におけるAlNの晶出挙動に及ぼすAl濃度の影響

凝固過程のミクロ偏析による溶質濃度分布の定量的理解

SOKD: A soft optimization knowledge distillation scheme for surface defects identification of hot-rolled strip

Reduction and Carburization Behaviors of Iron Oxide Composite with Iron Carbide and Free Carbon

詳細検索

マーカー実験法によるAl溶融メッキ時に生成するFe₂Al₅相の成長機構の解明

Injection of hydrogenous gases into the blast furnace tuyeres for reducing CO₂ emissions: a review

凝固過程における溶鋼中からAl₂O₃上へのMnSの晶出挙動

Molecular dynamics simulation of viscosity of the CaO, MgO and Al₂O₃ melts