采用Nd∶YAG激光器开展X65管线钢激光深熔焊接实验,通过光学显微镜、扫描电镜、硬度仪,观察焊缝形貌,表征焊缝区域的微观组织,测量......

Recrystallization behavior of a low carbon X70 pipeline steel was studied in the plane strain compression condition. It ......

本文简述了含硫化氢油气田上管线钢和容器钢的HIC现象及其破裂事故,影响HIC的因素,控制HIC的措施和评价HIC的方法。大量的研究和实......