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研究了焊后热处理对CF -62钢焊接热影响区粗晶区韧性的影响。指出CF -62钢焊接热影响区粗晶区在焊后热处理过程中有产生消除应力脆化的倾向 ,并探讨了低合金高强钢消除应力脆化的机理
The effect of post-weld heat treatment on the toughness of the coarse grain zone in the heat-affected zone of CF-62 steel was studied. It is pointed out that the coarse-grained zone in the heat affected zone of CF-62 steel tends to eliminate stress embrittlement during the post-weld heat treatment, and the mechanism of eliminating stress embrittlement of low-alloy high strength steel