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采用热模拟及插销试验方法对 2 .2 5Cr -1Mo钢焊接热影响区的组织、韧性及冷裂纹敏感性的相关性进行定量研究与分析 ,提出了 2 .2 5Cr -1Mo钢既能防止焊接冷裂纹又可保证焊接热影响区韧性的工艺措施
The relationship between microstructure, toughness and cold crack susceptibility of 2 .2 5Cr -1Mo steel was studied quantitatively by means of thermal simulation and bolt test. It is proposed that 2.5Cr -1Mo steel can prevent welding Cold crack but also to ensure the toughness of heat-affected zone welding process measures