硼含量及淬火温度对60Si2Mn弹簧扁钢力学性能的影响

doi:10.13251/j.issn.0254-6051.2025.09.042

金属热处理 ›› 2025, Vol. 50 ›› Issue (9): 264-270.DOI: 10.13251/j.issn.0254-6051.2025.09.042

硼含量及淬火温度对60Si2Mn弹簧扁钢力学性能的影响

罗贻正¹, 张轩睿², 王星³, 詹红⁴, 舒大禹⁴, 赵飞⁵, 卢新春⁶, 王艳林²

1.方大特钢科技股份有限公司, 江西南昌 330012;
2.北京科技大学材料科学与工程学院, 北京 100083;
3.内蒙古北方重工集团有限公司, 内蒙古包头 014033;
4.中国兵器装备集团西南技术工程研究所, 重庆 400039;
5.武汉第二船舶设计研究所, 湖北武汉 430205;
6.江西冶金职业技术学院, 江西新余 338015

收稿日期:2025-05-27 修回日期:2025-08-01 出版日期:2025-09-25 发布日期:2025-10-13
通讯作者: 王艳林,副教授,博士,E-mail: wangyanlin921@ustb.edu.cn
作者简介:罗贻正(1977—),男,高级工程师,硕士,主要研究方向为材料成形、钢铁新产品开发及钢铁材料的失效分析,E-mail: 9002761@qq.com。
基金资助:
国家自然科学面上基金(52071012);山东省重点研发计划(2022JMRH0209);高端装备铸造技术全国重点试验室开放课题(CAT2023-004)

Effect of boron content and quenching temperature on mechanical properties of 60Si2Mn spring flat steel

Luo Yizheng¹, Zhang Xuanrui², Wang Xing³, Zhan Hong⁴, Shu Dayu⁴, Zhao Fei⁵, Lu Xinchun⁶, Wang Yanlin²

1. Fangda Special Steel Technology Co., Ltd., Nanchang Jiangxi 330012, China;
2. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
3. Inner Mongolia North Heavy Industries Group Corp., Ltd., Baotou Inner Mongolia 014033, China;
4. Southwest Technology and Engineering Research Institute of China Ordnance Equipment Group, Chongqing 400039, China;
5. Wuhan Second Ship Design and Research Institute, Wuhan Hubei 430205, China;
6. Jiangxi Metallurgical Vocational and Technical College, Xinyu Jiangxi 338015, China

Received:2025-05-27 Revised:2025-08-01 Online:2025-09-25 Published:2025-10-13

摘要/Abstract

摘要： 利用正交试验,研究了硼含量(0~0.0047%)及淬火温度对60Si2Mn弹簧扁钢硬度、拉伸性能和疲劳性能的影响,得出了硼含量及淬火温度最优参数。结果表明,硼含量为0.0026%时,按870 ℃淬火+500 ℃回火工艺进行调质后,可获得最优的综合性能,其抗拉强度为1518 MPa,屈服强度为1385 MPa,断后伸长率为6%,断面收缩率为39%,疲劳寿命均值在10.28万次左右,优于未加硼试样。适量硼(0.0026%)的加入可以提高60Si2Mn弹簧扁钢的强度和塑韧性,且断口分析显示,未引入其他缺陷,可为60Si2Mn弹簧扁钢加硼的工业化应用提供理论依据和实践支持。

关键词: 弹簧钢, 60Si2Mn, 硼, 淬火, 力学性能

Abstract: Using orthogonal tests, the effects of boron content (0-0.0047%) and quenching temperature on the hardness, tensile properties, and fatigue properties of 60Si2Mn spring flat steel were investigated, and the optimal parameters for boron content and quenching temperature were determined. The results show that when the boron content is 0.0026% and the steel is quenched at 870 ℃ followed by tempering at 500 ℃, the material achieves the optimal comprehensive properties. Specifically, the tensile strength reaches 1518 MPa, the yield strength is 1385 MPa, the elongation after fracture is 6%, and the reduction of area is 39%. Additionally, the average fatigue life is approximately 102 800 cycles, which is superior to that of the boron-free specimen. The addition of appropriate boron (0.0026%) can improve the strength, plasticity and toughness of the 60Si2Mn spring flat steel, and the fracture analysis shows that there is no other defect introduced, which can provide theoretical basis and practical support for the industrial application of the 60Si2Mn spring flat steel with boron.

Key words: spring steel, 60Si2Mn, boron, quenching, mechanical properties

中图分类号:

TG142.1

罗贻正, 张轩睿, 王星, 詹红, 舒大禹, 赵飞, 卢新春, 王艳林. 硼含量及淬火温度对60Si2Mn弹簧扁钢力学性能的影响[J]. 金属热处理, 2025, 50(9): 264-270.

Luo Yizheng, Zhang Xuanrui, Wang Xing, Zhan Hong, Shu Dayu, Zhao Fei, Lu Xinchun, Wang Yanlin. Effect of boron content and quenching temperature on mechanical properties of 60Si2Mn spring flat steel[J]. Heat Treatment of Metals, 2025, 50(9): 264-270.

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硼含量及淬火温度对60Si2Mn弹簧扁钢力学性能的影响

Effect of boron content and quenching temperature on mechanical properties of 60Si2Mn spring flat steel

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