高强度合金钢应力腐蚀性能研究

Study on Stress Corrosion Behavior of High Strength Alloy Steel

摘要: 通过真空熔炼法制备高强度合金钢,采用慢应变速率拉伸测试法检测应力腐蚀敏感性。结果表明,随着材料强度的增加,应力腐蚀敏感性变大,断口出现沿晶形貌,属于脆性断裂;不同材料进行充氢试验后,慢拉伸试样的H残留量随着Mo含量的增加而增加,说明Mo含量对H残留有一定的影响。
- 高强度合金钢 /
- 氢 /
- 应力腐蚀开裂
Abstract: High strength alloy steel is prepared by vacuum melting method, and the stress corrosion sensitivity is tested by slow strain rate tensile test. The results show that with the increase of material strength, the stress corrosion susceptibility becomes larger, and the fracture surface shows intergranular morphology, which belongs to brittle fracture. After the hydrogen charging test of different materials, the residual amount of H in slow tensile specimens increases with the increase of Mo content, which shows that Mo content has a certain effect on the residual amount of H.
- high strength alloy steel /
- hydrogen /
- stress corrosion cracking

[1]	干勇.钢铁材料手册[M].北京:化学工业出版社, 2009.
[2]	文九巴.材料科学与工程[M].哈尔滨:哈尔滨工业大学出版社, 2007.
[3]	孙永伟.高强度螺栓用钢的氢扩散动力学及氢致延迟断裂控制技术研究[D].哈尔滨:哈尔滨工程大学, 2016.
[4]	左景伊.应力腐蚀破裂[M].西安:西安交通大学出版社, 1985.
[5]	陆世英,张德康.不锈钢应力腐蚀破裂[M].北京:科学出版社, 1977.
[6]	罗先甫,查小琴,郑国华,等.时效工艺对2000系高强铝合金慢应变速率拉伸性能的影响[J].材料开发与应用, 2015, 30(4):24-29.
[7]	方栋,陈继志,袁亚民,等.0Crl7Ni4Cu4Nb钢锻件延迟断裂失效分析[J].材料开发与应用,2007,22(8):44-46.
[8]	PERAL L B, AMGHOUZ Z, COLOMBO C, et al.Evaluation of hydrogen trapping and diffusion in two cold worked CrMo (V) steel grades by means of the electrochemical hydrogen permeation technique[J]. Theoretical and Applied Fracture Mechanics, 2020, 110:102771.
[9]	XIONG X L, SONG K K, LI J X, et al. Effect of Mo content on hydrogen evolution reaction of 1400 MPa-grade high-strength bolt steel[J]. Materials, 2023, 16(3):1020.