淬火配分时间对一种中锰钢耐磨性的影响

doi:10.13251/j.issn.0254-6051.2023.05.042

金属热处理 ›› 2023, Vol. 48 ›› Issue (5): 270-274.DOI: 10.13251/j.issn.0254-6051.2023.05.042

淬火配分时间对一种中锰钢耐磨性的影响

贾涓, 江萱, 蒋建江, 宋新莉

武汉科技大学省部共建耐火材料与冶金国家重点实验室, 湖北武汉 430081

收稿日期:2022-11-18 修回日期:2023-04-02 出版日期:2023-05-25 发布日期:2023-06-21
作者简介:贾涓(1979—),女,教授,博士,主要研究方向为材料强韧化及各向异性,E-mail: queenyjj@hotmail.com
基金资助:
国家级大学生创新创业训练计划(201710488011);国家重点研发计划“重点基础材料技术提升与产业化”重点专项(2017YFB0305100)

Effect of quenching-partition time on wear resistance of a medium manganese steel

Jia Juan, Jiang Xuan, Jiang Jianjiang, Song Xinli

The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan Hubei 430081, China

Received:2022-11-18 Revised:2023-04-02 Online:2023-05-25 Published:2023-06-21

摘要/Abstract

摘要： 对一种中锰钢进行了两步法淬火-配分(Q&P)处理,借助OM、SEM、XRD和磨粒磨损试验机观察了中锰钢试样的组织演变并检测其耐磨性能,分析了淬火配分时间对中锰钢组织性能的影响。结果表明:配分处理后试验钢的组织主要为板条状马氏体、块状马氏体和残留奥氏体。当配分时间从5 min延长到40 min时,残留奥氏体含量先增加后减少,配分20 min后达到最大值。试验钢的磨损机制以微观切削为主,小载荷时,随残留奥氏体含量增多,耐磨性减弱;大载荷时,随残留奥氏体含量增多,耐磨性增强。

关键词: 淬火-配分, 中锰钢, 残留奥氏体, 耐磨性

Abstract: A medium manganese steel was treated by two-step quenching-partition process (Q&P). The microstructure evolution and wear resistance of the specimens were observed by means of OM, SEM, XRD and abrasive wear tester. Effect of quenching and partition time on microstructure and properties of the medium manganese steel was analyzed. The results show that the microstructure of the tested steel is mainly composed of lath martensite, massive martensite and retained austenite. When the partitioning time is extended from 5 min to 40 min, the retained austenite content first increases and then decreases, and reaches the maximum value after 20 min. The wear mechanism of the tested steel is mainly micro cutting. Under the smaller load, the wear resistance decreases with the increase of retained austenite content. Under the higher load, the wear resistance becomes better with the increase of retained austenite content.

Key words: quenching-partition, medium manganese steel, retained austenite, wear resistance

中图分类号:

TG142.1

贾涓, 江萱, 蒋建江, 宋新莉. 淬火配分时间对一种中锰钢耐磨性的影响[J]. 金属热处理, 2023, 48(5): 270-274.

Jia Juan, Jiang Xuan, Jiang Jianjiang, Song Xinli. Effect of quenching-partition time on wear resistance of a medium manganese steel[J]. Heat Treatment of Metals, 2023, 48(5): 270-274.

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淬火配分时间对一种中锰钢耐磨性的影响

Effect of quenching-partition time on wear resistance of a medium manganese steel

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