文献类型：期刊文献

英文题名：Method and Criteria to Evaluate Reheat Cracking Susceptibility The notched C-ring test method and evaluation criteria is used to evaluate reheat cracking susceptibility in the coarse grain heat-affected zone of 2.25Cr1Mo0.25V steel

作者：Zhang, L.[1];Wang, K.[1];Huang, Y.[1];Xu, C.[1];Chen, J.[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai, Peoples R China

年份：2020

卷号：99

期号：6

起止页码：175

外文期刊名：WELDING JOURNAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000576607600028)】；

基金：The authors thank all contributors of this work and all the people met during this work period. This research was financially supported by the National Basic Research Program of China (973 Program, No. 2015CB057602).

语种：英文

外文关键词：Reheat Cracking; Notched C-Ring Test; Evaluation Criteria; Coarse Grain Heat-Affected Zone; 2.25Cr1Mo0.25V Steel

摘要：Due to a lack of facile methods for evaluating the reheat cracking susceptibility of the coarse grain heat-affected zone (CGHAZ), a simple notched C-ring reheat cracking test method and evaluation criteria were proposed. Accordingly, a suitable C-ring sampling method and heat treatment procedure were established. The C-ring specimens were taken from thick plate joints welded under five different heat inputs and testing was carried out. Reheat cracks were observed and identified under different stress loadings. Subsequently, related with the evaluation criteria of the Gleeble (R) test, the evaluation criteria based on notched C-ring tests were developed. This method can reflect both the microstructure and restraint stress of actual welded joints, and the stress relaxation during heat treatment. Moreover, the experimental operation is simple and repeatable. It is expected that an evaluation standard for reheat cracking sensitivity in CGHAZ will be established.