不同热处理对钻杆材料硫化氢应力腐蚀性能的影响  

Research of Different Heat Treatment on Hydrogen Sulfide Stress Corrosion Property of Drill Pipe Material

作　　者：刘阁[1] 何芳[1] 田美子[1] 何仁琪[1] LIU Ge;HE Fang;TIAN Mei-zi;HE Ren-qi(School of Robot Engineering,Yangtze Normal University,Chongqing 408000,China)

机构地区：[1]长江师范学院机器人工程学院

出　　处：《材料保护》2019年第5期17-22,47,共7页Materials Protection

基　　金：四川省教育厅重点项目(15ZA0057);涪陵区科技计划项目(FLKJ,2018BBA3044);长江师范学院校级项目(2013XJYB004),依托项目:重庆市教委项目(KJ15012025),长江师范学院资助项目

摘　　要：随着酸性油气田的陆续出现,钻杆在酸性环境下腐蚀性能的研究显得尤为重要。通过拉伸试验、冲击试验、硬度测试及硫化氢应力腐蚀试验(SSC)等对不同热处理后V150钻杆材料的硫化氢应力腐蚀性能进行了研究。结果表明:热处理可以提高V150钻杆材料的抗硫化氢应力腐蚀性能;在淬火温度一定的情况下,抗拉强度、屈服强度及硬度随回火温度的升高呈逐渐降低的趋势,冲击韧性呈逐渐升高的趋势;抗SSC性能随着回火温度的升高逐渐提高;夹杂和缺陷是导致V150钻杆材料抗SSC性能降低的主要原因。As acid oil-gas fields appear in succession,the research of corrosion performance of drill pipe in acidic environment becomes particularly important. The corrosion properties of V150 drill pipe material after different heat treatment were investigated by tensile test,impact test,hardness test,hydrogen sulfide stress corrosion test and so on. Results showed that heat treatment could improve the resistance to hydrogen sulfide stress corrosion of V150 drill pipe material. Under the condition of a certain quenching temperature,with the increase of tempering temperature,the tensile strength,yield strength and hardness decreased gradually,and the impact toughness increased gradually.The hydrogen sulfide stress corrosion resistance was improved by the increase of tempering temperature. Furthermore,the inclusions and defects were the main reasons which reduced hydrogen sulfide stress corrosion resistance.

关 键 词：V150钻杆材料 力学性能 硫化氢应力腐蚀 热处理 

分 类 号：TG172[金属学及工艺—金属表面处理]