Digital Repository, ICF12, Ottawa 2009

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Cold Cracking Delay Times for Single Pass Weld Metal
R. Holdstock, N. Pussegoda, V. Semiga, D. Begg

Last modified: 2013-05-07


The study of hydrogen assisted cracking in steels has received considerable attention although certain aspects still elude academia and industry. The aim of this paper is to communicate physical research undertaken at The University of Wollongong (UOW) and the subsequent analysis at BMT Fleet Technology in relation to small scale testing of single pass weld deposits. The work presented entails the use of 4-point bend testing to derive hydrogen weld metal cold cracking delay times. It is proposed that a maximum delay time before cracking, rather the prediction of a single delay crack time for one condition, may provide more realistic expectations.

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