热处理对40Cr13VTi不锈钢组织和性能的影响

doi:10.13251/j.issn.0254-6051.2024.05.036

金属热处理 ›› 2024, Vol. 49 ›› Issue (5): 215-219.DOI: 10.13251/j.issn.0254-6051.2024.05.036

热处理对40Cr13VTi不锈钢组织和性能的影响

刘禹^1,2,3, 孙迎建^1,2,3, 张铁壁^1,2,3, 郗艳梅^1,2,3

1.河北水利电力学院机械工程系, 河北沧州 061001;
2.河北省工业机械手控制与可靠性技术创新中心, 河北沧州 061001;
3.沧州市工业机械手控制与可靠性技术创新中心, 河北沧州 061001

收稿日期:2024-01-17 修回日期:2024-03-26 出版日期:2024-05-25 发布日期:2024-06-28
通讯作者: 孙迎建,硕士,E-mail:sunyingjian@hbwe.edu.cn
作者简介:刘禹(1982—),男,硕士,主要研究方向为大型机械结构设计、材料成型及控制工程,E-mail:liuyu@hbwe.edu.cn。
基金资助:
河北省教育厅河北省高等教育教学改革研究与实践项目(2022GJJG392)

Effect of heat treatment on microstructure and properties of 40Cr13VTi stainless steel

Liu Yu^1,2,3, Sun Yingjian^1,2,3, Zhang Tiebi^1,2,3, Xi Yanmei^1,2,3

1. Mechanical Engineering, Hebei University of Water Resources and Electric Engineering, Cangzhou Hebei 061001, China;
2. Hebei Industrial Manipulator Control and Reliability Technology Innovation Center, Cangzhou Hebei 061001, China;
3. Cangzhou Industrial Manipulator Control and Reliability Technology Innovation Center, Cangzhou Hebei 061001, China

Received:2024-01-17 Revised:2024-03-26 Online:2024-05-25 Published:2024-06-28

摘要/Abstract

摘要： 为了优化含V、Ti的40Cr13VTi钢的回火工艺,研究了1030 ℃油淬后不同回火温度对40Cr13VTi钢组织、析出相及力学性能的影响。采用光学显微镜(OM)、扫描电镜(SEM)和能谱仪(EDS)分析了合金的显微组织。对40Cr13VTi不锈钢进行了拉伸、冲击性能和硬度测试。结果表明,随着回火温度的升高,碳化物析出数量逐渐增多,形状逐渐由颗粒变为片状,与原始马氏体板条方向一致,且大部分集中在马氏体边界处;当回火温度为350 ℃时,40Cr13VTi马氏体不锈钢的综合力学性能最佳,屈服强度为1360 MPa,抗拉强度为1717 MPa,冲击吸收能量为6.8 J,硬度为43.1 HRC。

关键词: 40Cr13VTi马氏体不锈钢, 回火温度, 显微组织, 析出相, 力学性能

Abstract: After 1030 ℃ oil quenching, the effect of tempering temperature on the microstructure, precipitates and mechanical properties of the 40Cr13VTi steel containing V and Ti was studied to optimize the tempering process. The microstructure of the steel was analyzed by using optical microscope (OM), scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). Tensile, impact and hardness tests were conducted on the tested steel. The results show that as the tempering temperature increases, the carbide precipitates gradually increase in number, and gradually change from particles to flakes in shape, which are consistent with the original martensite lath direction, and most of them are concentrated at the martensite boundary. When the tempering temperature is 350 ℃, the comprehensive mechanical properties of the 40Cr13VTi martensitic stainless steel are the best, with yield strength of 1360 MPa, tensile strength of 1717 MPa, impact absorbed energy of 6.8 J, and hardness of 43.1 HRC.

Key words: 40Cr13VTi martensitic stainless steel, tempering temperature, microstructure, precipitated phase, mechanical properties

中图分类号:

TG142.7

刘禹, 孙迎建, 张铁壁, 郗艳梅. 热处理对40Cr13VTi不锈钢组织和性能的影响[J]. 金属热处理, 2024, 49(5): 215-219.

Liu Yu, Sun Yingjian, Zhang Tiebi, Xi Yanmei. Effect of heat treatment on microstructure and properties of 40Cr13VTi stainless steel[J]. Heat Treatment of Metals, 2024, 49(5): 215-219.

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热处理对40Cr13VTi不锈钢组织和性能的影响

Effect of heat treatment on microstructure and properties of 40Cr13VTi stainless steel

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