焊管2025，Vol.48Issue(5)：1-8,8.DOI:10.19291/j.cnki.1001-3938.2025.05.001
X65MS焊管在酸性环境下的抗开裂性能研究进展
Research Progress on Anti-cracking Performance of X65MS Welded Pipe in Sour Environment
鲜宁 1李天雷 1黄晓辉 2昝林峰 3陈勇彬 1李科 1刘冬4
作者信息
- 1. 中国石油工程建设有限公司西南分公司,成都 610041||中国石油集团管力学与环境重点实验室四川分室,成都 610041
- 2. 中油国家石油天然气管材工程技术研究中心有限公司,西安 710018
- 3. 中国石油工程建设有限公司西南分公司,成都 610041
- 4. 西南油气田分公司川中油气矿,四川 遂宁 629000
- 折叠
摘要
Abstract
In order to study the anti-cracking performance of X65MS welded pipes in an sour environment containing H2S,the cracking mechanism and its influencing factors under the condition of H2S environment was analyzed.Additionally,the formation mechanism of local hard zone in X65MS was elucidated.Furthermore,issues such as hydrogen induced cracking(HIC)resistance,sulfide stress cracking(SSC)resistance,and corrosion groove characteristics were analyzed and evaluated.The results indicate that X65MS steel pipe without local hard zone exhibits excellent SSC resistance performance.The hardness and depth of the local hard zone significantly influence SSC resistance.As the hardness or depth of the local hard zone increases,the SSC sensitivity of X65MS steel also increases.The formation of local hard areas in X65MS welded pipes is attributed to the thermo-mechanical control process(TMCP),and excessively high hardness can reduce SSC resistance.Current quality control measures within the existing standard system struggle to effectively detect and mitigate issues related to local hard zone.Therefore,it is recommended to incorporate thermal imaging and eddy current non-destructive testing technologies into the steel plate manufacturing process to enhance and refine quality control procedures,thereby providing technical guidance for the engineering application and promotion of high-strength sulfur-resistant pipelines.关键词
X65MS/局部硬区/SSC/HIC/H2SKey words
X65MS/local hard zone(LHZ)/SSC/HIC/H2S分类
金属材料引用本文复制引用
鲜宁,李天雷,黄晓辉,昝林峰,陈勇彬,李科,刘冬..X65MS焊管在酸性环境下的抗开裂性能研究进展[J].焊管,2025,48(5):1-8,8.
