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材料と環境
Vol. 73 (2024), No. 8

材料と環境 Vol. 73 (2024), No. 8

オンライン版ISSN:	1881-9664
冊子版ISSN:	0917-0480
発行機関:	Japan Society of Corrosion Engineering

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キーワードランキング

06 Oct. (Last 30 Days)

材料と環境 Vol. 73 (2024), No. 8

私にとっての腐食防食学会

松田英樹

pp. 183-184

DOI:

10.3323/jcorr.73.183

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私にとっての腐食防食学会

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Ris

水中のケイ素が及ぼす溶融亜鉛めっきの腐食への影響

岩田孝二, 左藤眞市

pp. 188-193

DOI:

10.3323/jcorr.73.188

抄録

Effects of temperature and concentration of silicate anion in water on corrosion behavior of hot-dip galvanizing were investigated by immersion test, surface analysis, and cross-sectional observation. Immersion test using ion-exchanging water indicated that the corrosion rate decreased due to deterioration of water quality. X-ray fluorescence analysis revealed that much more Si exist on surface of hot-dip galvanizing sample after immersion test using deteriorated water compared to clean water. Now we prepared corroding liquid by adjusting the concentration of silicate anion using distilled water and sodium silicate in order to confirm the effect of concentration of silicate anion on corrosion rate by immersion test. In this test, higher concentration of silicate anion led to lower corrosion rate as well as in the immersion test using ion-exchanging water. Moreover, the influence on the corrosion inhibition by silicate anion was larger in corroding liquid at 60℃ than at 25℃. Glow discharge optical emission spectrometry revealed that more Si existed in the corrosion products on surface of hot-dip galvanizing immersed in 60℃ than in 25℃ water, and the thickness of corrosion products containing Si was about 20-30 nm by cross-sectional SEM image.

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水中のケイ素が及ぼす溶融亜鉛めっきの腐食への影響

Bibtex

Ris

イリジウム錯体を用いた多結晶純ニッケル中の微視的な水素拡散の可視化

味戸沙耶, 柿沼洋, 小山元道, 秋山英二

pp. 194-199

DOI:

10.3323/jcorr.73.194

抄録

Microscopic hydrogen visualization has long been required to clarify the hydrogen embrittlement mechanism of metallic materials. In this study, hydrogen diffusion depending on microstructure in polycrystalline pure nickel film was successfully visualized using an Ir complex, whose color changes with hydrogen. The hydrogen flux in nickel was found to be large at random grain boundaries and small inside grains and at coincidence site lattice grain boundaries.

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イリジウム錯体を用いた多結晶純ニッケル中の微視的な水素拡散の可視化

Bibtex

Ris

土壌中における酸素の拡散速度の評価とそれらが土壌腐食に与える影響

藤橋健太, 中神綾介, 押川渡

pp. 200-209

DOI:

10.3323/jcorr.73.200

抄録

Soil corrosion rate for architecture and civil engineering is regarded as 0.02 mm/year regardless of the soil. However, it is considered that corrosion rates of each soil are different because soil properties such as particle size, water content, chemical composition and pH are different. In this study, we measured dissolved oxygen diffusion coefficient of each soil and each water content and evaluated the charge transfer resistance of each dissolved oxygen concentration by AC impedance method, to investigate the effect of dissolved oxygen diffusion on soil corrosion.

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土壌中における酸素の拡散速度の評価とそれらが土壌腐食に与える影響

Bibtex

Ris

論文アクセスランキング

06 Oct. (Last 30 Days)

Current Trends on Deep Learning Techniques Applied in Iron and Steel Making Field: A Review

ISIJ International Vol.64(2024), No.11
Phonon mean free path of silicate glasses: a useful parameter to distinguish between framework and nonframework cations

ISIJ International 早期公開
Effect of Wettability on Droplet Agglomeration in Two Immiscible Liquids

ISIJ International Vol.64(2024), No.8
Arc-plasma-assisted laser-induced breakdown spectroscopy (AP-LIBS): A Study on Signal Enhancement and Spatiotemporal Distribution

ISIJ International 早期公開
Effect of microalloying of V, Nb and Mo on hydrogen embrittlement susceptibility of 2 GPa-grade medium-carbon Si–Cr spring steel with tempered martensite microstructure

ISIJ International 早期公開
Ductility loss of a metastable austenitic stainless steel and its TIG weldment due to hydrogen embrittlement at low temperatures considering the effect of pre-strain at 4K

ISIJ International 早期公開
フェロコークス用ブリケットの冷間強度に及ぼす石炭のバインダー吸着特性の影響

鉄と鋼早期公開
わが国における腐食コスト

材料と環境 Vol.69(2020), No.11
Cost of Corrosion in Japan

材料と環境 Vol.50(2001), No.11
Study of Optimum Silicon Content between Iron-making and Steel-making Process on the Hot Metal Pretreatment

鉄と鋼 Vol.69(1983), No.15

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材料と環境 Vol. 73 (2024), No. 8

キーワードランキング

impact delta ferrite

hrx19

analysis of generation mechanism of unimodal and bimodal waveform detection signals of a whole roll flatness meter

austenite ferrite grain curvature

calcium carbonate

current trends on deep learning techniques applied in iron and steel making field: a review

fracture toughness grain size

grain curvature

mold flux

oxide vapour high temperature

材料と環境 Vol. 73 (2024), No. 8

私にとっての腐食防食学会

SNSによる共有

水中のケイ素が及ぼす溶融亜鉛めっきの腐食への影響

SNSによる共有

イリジウム錯体を用いた多結晶純ニッケル中の微視的な水素拡散の可視化

SNSによる共有

土壌中における酸素の拡散速度の評価とそれらが土壌腐食に与える影響

SNSによる共有

論文アクセスランキング

Current Trends on Deep Learning Techniques Applied in Iron and Steel Making Field: A Review

Phonon mean free path of silicate glasses: a useful parameter to distinguish between framework and nonframework cations

Effect of Wettability on Droplet Agglomeration in Two Immiscible Liquids

Arc-plasma-assisted laser-induced breakdown spectroscopy (AP-LIBS): A Study on Signal Enhancement and Spatiotemporal Distribution

Effect of microalloying of V, Nb and Mo on hydrogen embrittlement susceptibility of 2 GPa-grade medium-carbon Si–Cr spring steel with tempered martensite microstructure

Ductility loss of a metastable austenitic stainless steel and its TIG weldment due to hydrogen embrittlement at low temperatures considering the effect of pre-strain at 4K

フェロコークス用ブリケットの冷間強度に及ぼす石炭のバインダー吸着特性の影響

わが国における腐食コスト

Cost of Corrosion in Japan

Study of Optimum Silicon Content between Iron-making and Steel-making Process on the Hot Metal Pretreatment

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