摘要
介绍用国产１２Ｃｒ１ＭｏＶ钢管制成带焊缝的ＣＴ试件以及在５３０℃条件下对该焊缝材料的疲劳裂纹扩展速率进行的试验。确定出该焊缝材料Ｐａｒｉｓ公式中的材料参数ｃ及ｍ，同时还试验了电位法测量裂纹长度所用Ｊｏｈｎｓｏｎ方程的准确性。
CT specimens with welded seams made from 12Cr1MoV piping steelWere tested for fatigue crack grouth rates at 530℃ and the material constants of thesteel material of welded seams,c and m, for paris formula were obtained. Also,the accuracy of Johnson’s equation which is used for measuring crack lengtbes byelectrical potential metbod was verified.
出处
《石油化工设备》
CAS
北大核心
1995年第6期11-16,共6页
Petro-Chemical Equipment
基金
中国科学院沈阳金属研究所疲劳与断裂国家重点开放试验室资助项目
