@inproceedings{9d6bbc5603e5432881d9d473d5fed899,
title = "Effect of weld metal microstructure on cold crack susceptibility of high strength weld",
abstract = "Facing the practical difficulties in reducing the diffusible hydrogen content of fluxcontaining welding consumables like flux-cored are welding (FCAW) wires, the present study investigated the microstructural aspect to improve the hydrogen-induced cold crack (HICC) resistance of multipass weld metal of 600MPa strength. Two FCA welding wires were prepared by controlling the Ni content to give different weld microstructure, but to have similar levels of hardness and diffusible hydrogen content. HICC susceptibility of those two consumables was evaluated by 'G-BOP test' and also by 'multi-pass weld metal cold cracking test'. As a result of this study, it was demonstrated that microstructural modification with decreased proportion of grain boundary ferrite (GF) improved cold crack resistance of weld metal. The detrimental effect of GF against HICC has also been addressed based on the characteristics of weld metal cold cracking.",
keywords = "Acicular ferrite, Cold cracking, Diffusible hydrogen, Grain boundary ferrite, Weld metal",
author = "Kim, {Hee Jin} and Seo, {Jun Seok} and Kim, {Jae Hak} and Kim, {Ka Hee} and Koh, {Jin Hyun} and Ryoo, {Hoi Soo} and Huh, {Moo Young}",
year = "2008",
doi = "10.4028/www.scientific.net/msf.580-582.13",
language = "English",
series = "Materials Science Forum",
publisher = "Trans Tech Publications Ltd",
pages = "13--16",
editor = "Lee, {Chang Hee} and Jong-Bong Lee and Jong-Bong Lee and Dong-Hwan Park and Suck-Joo Na",
booktitle = "Materials Science Forum - Advanced Welding and Micro Joining/Packaging for the 21st Century - Selected peer reviewed papers from the International Welding/Joining Conference-Korea 2007, IWJC 2007",
note = "International Welding/Joining Conference-Korea 2007, IWJC 2007 ; Conference date: 10-05-2007 Through 12-05-2007",
}