热处理工艺对高铁耐蚀60Si2Mn弹簧钢组织和性能的影响

doi:10.13251/j.issn.0254-6051.2022.08.022

金属热处理 ›› 2022, Vol. 47 ›› Issue (8): 135-140.DOI: 10.13251/j.issn.0254-6051.2022.08.022

热处理工艺对高铁耐蚀60Si2Mn弹簧钢组织和性能的影响

李金波^1,2, 吴红艳¹, 高秀华¹, 陈红卫³, 李绍杰⁴, 朱子颖¹, 杜林秀¹

1.东北大学轧制技术及连轧自动化国家重点实验室, 辽宁沈阳 110819;
2.河钢集团邯钢公司, 河北邯郸 056015;
3.河钢集团技术研究院, 河北石家庄 050023;
4.河钢集团石钢公司, 河北石家庄 050031

收稿日期:2022-04-03 修回日期:2022-06-29 出版日期:2022-08-25 发布日期:2022-09-19
通讯作者: 高秀华,教授,博士,E-mail:gaoxh@ral.neu.edu.cn
作者简介:李金波(1979—),男,高级工程师,硕士,主要研究方向为特殊钢产品开发与工艺,E-mail:lijinbonet@163.com。
基金资助:
国家高技术研究发展计划(863计划) (2015AA03A5001)

Influence of heat treatment process on microstructure and mechanical properties of corrosion resistant 60Si2Mn spring steel for high-speed railway

Li Jinbo^1,2, Wu Hongyan¹, Gao Xiuhua¹, Chen Hongwei³, Li Shaojie⁴, Zhu Ziying¹, Du Linxiu¹

1. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang Liaoning 110819, China;
2. Hansteel Company, HBIS Group, Handan Hebei 056015, China;
3. HBIS Group Technology Research Institute, Shijiazhuang Hebei 050023, China;
4. Shisteel Company, HBIS Group, Shijiazhuang Hebei 050031, China

Received:2022-04-03 Revised:2022-06-29 Online:2022-08-25 Published:2022-09-19

摘要/Abstract

摘要： 在常规高铁弹条60Si2Mn弹簧钢基础上,通过添加Cr、Ni、Cu等耐蚀元素设计了耐蚀60Si2Mn弹簧钢,研究了热处理工艺对耐蚀弹簧钢显微组织、力学性能的影响规律,并评价了其耐蚀性能。结果表明,淬火+回火处理后耐蚀60Si2Mn钢显微组织为回火屈氏体,870 ℃保温45 min,油淬+440 ℃回火60 min处理后,耐蚀弹簧钢的综合力学性能最佳,屈服强度为1606 MPa,抗拉强度为1716 MPa,断后伸长率为5.3%,洛氏硬度为50.2 HRC。添加耐蚀元素的60Si2Mn钢耐蚀性较常规60Si2Mn钢得到较大提升。

关键词: 耐蚀60Si2Mn弹簧钢, 淬火温度, 回火温度, 组织, 性能

Abstract: Corrosion resistant 60Si2Mn spring steel was designed by adding Cr, Ni, Cu elements on the basis of the conventional high-speed railway 60Si2Mn spring steel. The influence of heat treatment process on microstructure and mechanical properties of the corrosion resistant spring steel was studied, and its corrosion resistance was evaluated. The results show that the microstructure of corrosion resistant 60Si2Mn steel after quenching and tempering is tempered troostite. When heated at 870 ℃ for 45 min, oil quenched and tempered at 440 ℃ for 60 min, the comprehensive mechanical properties of the corrosion resistant spring steel are the best, with yield strength of 1606 MPa, tensile strength of 1716 MPa, elongation after fracture of 5.3% and Rockwell hardness of 50.2 HRC. The corrosion resistance of 60Si2Mn steel added with corrosion resistant elements is much higher than that of conventional 60Si2Mn steel.

Key words: corrosion resistant 60Si2Mn spring steel, quenching temperature, tempering temperature, microstructure, properties

中图分类号:

TG115

李金波, 吴红艳, 高秀华, 陈红卫, 李绍杰, 朱子颖, 杜林秀. 热处理工艺对高铁耐蚀60Si2Mn弹簧钢组织和性能的影响[J]. 金属热处理, 2022, 47(8): 135-140.

Li Jinbo, Wu Hongyan, Gao Xiuhua, Chen Hongwei, Li Shaojie, Zhu Ziying, Du Linxiu. Influence of heat treatment process on microstructure and mechanical properties of corrosion resistant 60Si2Mn spring steel for high-speed railway[J]. Heat Treatment of Metals, 2022, 47(8): 135-140.

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热处理工艺对高铁耐蚀60Si2Mn弹簧钢组织和性能的影响

Influence of heat treatment process on microstructure and mechanical properties of corrosion resistant 60Si2Mn spring steel for high-speed railway

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