1Cr13钢的真空低压渗碳工艺及组织与性能

doi:10.13251/j.issn.0254-6051.2025.10.020

金属热处理 ›› 2025, Vol. 50 ›› Issue (10): 126-133.DOI: 10.13251/j.issn.0254-6051.2025.10.020

1Cr13钢的真空低压渗碳工艺及组织与性能

曹强¹, 罗春阳¹, 王昊杰², 王昭东^1,3

1.东北大学数字钢铁全国重点实验室, 辽宁沈阳 110819;
2.沈阳工业大学机械学院, 辽宁沈阳 110032;
3.河南省科学院材料研究所, 河南郑州 450046

收稿日期:2025-04-25 修回日期:2025-08-13 出版日期:2025-10-25 发布日期:2025-11-04
通讯作者: 王昭东,教授,博士,E-mail: zhdwang@mail.neu.edu.cn
作者简介:曹强(2000—),男,硕士研究生,主要研究方向为金属材料表面热处理,E-mail: 2722807005@qq.com。

Vacuum low-pressure carburizing process and microstructure and properties of 1Cr13 steel

Cao Qiang¹, Luo Chunyang¹, Wang Haojie², Wang Zhaodong^1,3

1. State Key Laboratory of Digital Steel, Northeastern University, Shenyang Liaoning 110819, China;
2. School of Mechanical Engineering, Shenyang University of Technology, Shenyang Liaoning 110032, China;
3. Materials Research Institute of Henan Academy of Sciences, Zhengzhou Henan 450046, China

Received:2025-04-25 Revised:2025-08-13 Online:2025-10-25 Published:2025-11-04

摘要/Abstract

摘要： 1Cr13钢经真空低压渗碳热处理后,对其显微组织及性能进行了研究。结果表明:试验钢在渗碳后,其近表层的过共析区和心部硬度偏高,共析区硬度偏低,随着渗后热处理的进行,该现象消失;在渗碳过程中形成的粗大网状碳化物在热处理过程中发生变化,网状碳化物断开,碳化物级别从热处理前的5级提高到4级;经过全工序真空低压渗碳热处理后,试验钢渗碳表面硬度与未渗碳试样相比提高了约20 HRC,渗碳后试样表面耐磨性提高;随着回火温度升高,渗层表面硬度降低,耐磨性变差,体积磨损率升高。

关键词: 马氏体不锈钢, 真空低压渗碳, 网状碳化物, 硬度, 耐磨性

Abstract: Microstructure and properties of 1Cr13 steel after vacuum low-pressure carburizing heat treatment were studied. The results show that after carburizing, the hardness of the hypereutectoid zone near the surface and the core of the tested steel is relatively high, while the hardness of the eutectoid zone is relatively low, and this phenomenon disappears with the progress of post-carburizing heat treatment. The coarse network carbides formed during the carburizing process change during the heat treatment. The network carbides are broken, and the carbide grade is improved from grade 5 before heat treatment to grade 4. After the full-process vacuum low-pressure carburizing and heat treatment, the carburized surface hardness of the tested steel is increased by approximately 20 HRC compared with that of the uncarburized specimen, and the surface wear resistance of the carburized specimen is improved. As the tempering temperature increases, the surface hardness of the carburized layer of the tested steel decreases, the wear resistance deteriorates, and the volume wear rate increases.

Key words: martensitic stainless steel, vacuum low pressure carburizing, network carbide, hardness, wear resistance

中图分类号:

TG156.81

曹强, 罗春阳, 王昊杰, 王昭东. 1Cr13钢的真空低压渗碳工艺及组织与性能[J]. 金属热处理, 2025, 50(10): 126-133.

Cao Qiang, Luo Chunyang, Wang Haojie, Wang Zhaodong. Vacuum low-pressure carburizing process and microstructure and properties of 1Cr13 steel[J]. Heat Treatment of Metals, 2025, 50(10): 126-133.

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1Cr13钢的真空低压渗碳工艺及组织与性能

Vacuum low-pressure carburizing process and microstructure and properties of 1Cr13 steel

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