徐秀清,林罡,牛靖,李发根,来维亚

• 1:石油管材及装备材料服役行为与结构安全国家重点实验室
• 2:中国石油集团石油管工程技术研究院
• 3:西安长庆科技工程有限责任公司
• 4:西安交通大学材料科学与工程学院

摘要(Abstract)：

采用Gleeble 3800试验机对TP321不锈钢的高温热影响区(1300℃,HAZ)进行热模拟试验后进行稳定化处理,在电解充氢条件下进行慢应变拉伸试验研究,分析稳定化处理对TP321不锈钢氢脆性能的影响。结果表明:稳定化处理会导致321不锈钢高温热影响区抗拉强度和断后伸长率大幅降低,降幅分别为7%和29%,同时氢脆敏感性系数增加;慢拉伸试样断口分析表明无论稳定化处理与否,氢才是断裂模式发生变化的直接原因;稳定化处理并不能改善TP321不锈钢焊接热影响区的抗氢脆性能。

关键词(KeyWords)： TP321不锈钢;热模拟试验;高温热影响区;稳定化处理;氢脆性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(21506256);; 中石油科学研究与技术开发项目(2017D-2307)

作者(Author): 徐秀清,林罡,牛靖,李发根,来维亚

DOI: 10.13289/j.issn.1009-6264.2018-0052

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