logo
Language
Bookmarks
Log Out

Journals

Search Sites

Account

© 2022 Steel Science Portal

How to use

Advanced Search

Search Sites

site
site
site
site

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY Vol. 42 (2024), No. 3

ISIJ International
belloff
ONLINE ISSN:
PRINT ISSN: 0288-4771
Publisher: JAPAN WELDING SOCIETY

Backnumber

  1. Vol. 42 (2024)

    1. No.3
    2. No.2
    3. No.1

  2. Vol. 41 (2023)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  3. Vol. 40 (2022)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  4. Vol. 39 (2021)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  5. Vol. 38 (2020)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  6. Vol. 37 (2019)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  7. Vol. 36 (2018)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  8. Vol. 35 (2017)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  9. Vol. 34 (2016)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  10. Vol. 33 (2015)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  11. Vol. 32.2 (2014)

    1. No.2

  12. Vol. 32 (2014)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  13. Vol. 31 (2013)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  14. Vol. 30 (2012)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  15. Vol. 29 (2011)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  16. Vol. 28 (2010)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  17. Vol. 27 (2009)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  18. Vol. 26 (2008)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  19. Vol. 25 (2007)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  20. Vol. 24 (2006)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  21. Vol. 23 (2005)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  22. Vol. 22 (2004)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  23. Vol. 21 (2003)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  24. Vol. 20 (2002)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  25. Vol. 19 (2001)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  26. Vol. 18 (2000)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  27. Vol. 17 (1999)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  28. Vol. 16 (1998)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  29. Vol. 15 (1997)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  30. Vol. 14 (1996)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  31. Vol. 13 (1995)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  32. Vol. 12 (1994)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  33. Vol. 11 (1993)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  34. Vol. 10 (1992)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  35. Vol. 9 (1991)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  36. Vol. 8 (1990)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  37. Vol. 7 (1989)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  38. Vol. 6 (1988)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  39. Vol. 5 (1987)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  40. Vol. 4 (1986)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  41. Vol. 3 (1985)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  42. Vol. 2 (1984)

    1. No.4
    2. No.3
    3. No.2
    4. No.1

  43. Vol. 1 (1983)

    1. No.3
    2. No.2
    3. No.1

Keyword Ranking

14 Sep. (Last 30 Days)

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY Vol. 42 (2024), No. 3

Prevention of Solidification Cracking in Narrow Gap Welding of Carbon Steel

Naoki SAHARA, Shotaro YAMASHITA, Hiroyuki HIRATA, Kazuyoshi SAIDA

pp. 105-113

DOI:

10.2207/qjjws.42.105

Abstract

Pear-shaped bead cracking occurs in carbon steel when P/W, the ratio of penetration depth to bead width, increases. Pear-shaped bead cracking is a type of solidification cracking. In a previous study, we achieved the reduction of BTR in carbon steel by appropriate Ti addition. However, there are very few studies that pear-shaped bead cracking of carbon steel was prevented by reducing BTR. In this study, the effect of BTR reduction by Ti addition on the prevention of pear-shaped bead cracking was investigated. Narrow gap GMA welding was carried out using 0.15%C as the standard material and 0.15%C-0.95%Ti as the countermeasure material. In the weld metal microstructure of 0.15%C-0.95%Ti, there was a formation phase at dendrite boundaries and columnar grain boundaries. According to the EPMA analysis results, Ti-based oxides and MnS were formed in 0.15%C and in addition to these, TiC was formed in 0.15%C-0.95%Ti. The results of the theoretical investigation of BTR indicated that BTR was significantly reduced by Ti addition when Ti content was reduced to 0.74% in 0.15%C-0.95%Ti. Weld cracking was observed in the center of the weld metal in 0.15%C, but not in 0.15%C-0.95%Ti. Observation of the fracture surface of 0.15%C indicated that the cracking was solidification cracking. The occurrence of solidification cracking was determined by the weld shape ratio (P/W ratio). The solidification cracking at 0.15%C can be uniformly determined by the P/W ratio, and the cracking occurs when the P/W ratio exceeds 1.0. On the other hand, in 0.15%C-0.95%Ti, no solidification cracking occurred even when the P/W ratio exceeded 1.0. In other words, it was found that pear-shaped bead cracking (solidification cracking) of carbon steel can be prevented by reducing BTR.

mendeley

Bookmark

Detail

PDF Download

Share it with SNS

Article Title

Prevention of Solidification Cracking in Narrow Gap Welding of Carbon Steel

twitter
facebook
mendeley

Bibtex

Ris

Article Access Ranking

14 Sep. (Last 30 Days)

You can use this feature after you logged into the site.
Please click the button below.

Advanced Search

Article Title

Author

Abstract

Journal Title

Year

Please enter the publication date
with Christian era
(4 digits).

Please enter your search criteria.