喷丸工艺对4Cr5Mo2V钢表面性能与磨损行为的影响

doi:10.13251/j.issn.0254-6051.2023.12.026

金属热处理 ›› 2023, Vol. 48 ›› Issue (12): 153-159.DOI: 10.13251/j.issn.0254-6051.2023.12.026

喷丸工艺对4Cr5Mo2V钢表面性能与磨损行为的影响

牛童^1,2, 王昕宇^1,2, 吴晓春^1,2,3

1.上海大学省部共建高品质特殊钢冶金与制备国家重点实验室, 上海 200444;
2.上海大学材料科学与工程学院, 上海 200444;
3.上大鑫仑材料科技(广东)有限公司, 广东肇庆 526105

收稿日期:2023-07-11 修回日期:2023-10-26 出版日期:2023-12-25 发布日期:2024-01-29
通讯作者: 吴晓春,教授,博士,E-mail: xcwu@staff.shu.edu.cn
作者简介:牛童(1999—),男,硕士研究生,主要研究方向为热作模具钢表面处理,E-mail: niu1tong@163.com。
基金资助:
上海大学开放课题(SKLASS2022-15);上海市科学技术委员会基金(19DZ2270200)

Effect of shot peening process on surface properties and wear behavior of 4Cr5Mo2V steel

Niu Tong^1,2, Wang Xinyu^1,2, Wu Xiaochun^1,2,3

1. State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, China;
2. School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China;
3. Shangda Xinlun Material and Technology Co., Ltd., Zhaoqing Guangdong 526105, China

Received:2023-07-11 Revised:2023-10-26 Online:2023-12-25 Published:2024-01-29

摘要/Abstract

摘要： 利用白光干涉仪、扫描电镜(SEM)、X射线衍射仪(XRD)和残余应力仪等手段,研究了不同喷丸工艺对4Cr5Mo2V热作模具钢表层形貌与组织、力学性能以及摩擦磨损行为的影响。结果表明,经 0.4 mmA+0.2 mmA+0.1 mmA 强度复合喷丸处理后的试样有最强的强化效果,在位错强化与细晶强化的共同作用下,试样的表面硬度由520 HV0.1提高至601 HV0.1,残余应力峰值为-1141 MPa,较高的硬度与残余应力能够改善材料抵抗粘着磨损与磨粒磨损的能力,使得材料的耐磨性得到大幅改善,磨损率降低了60.7%,因此该工艺为最佳的喷丸处理工艺。

关键词: 喷丸工艺, 4Cr5Mo2V钢, 摩擦磨损, 喷丸强化

Abstract: Effects of different shot peening processes on the surface morphologies and microstructure, mechanical properties, and friction and wear behavior of 4Cr5Mo2V hot work die steel were investigated by using white light interferometer, scanning electron microscope (SEM), X-ray diffractometer (XRD) and residual stress meter. The results show that after carried out 0.4 mmA + 0.2 mmA + 0.1 mmA compound shot peening treatment, the specimen has the strongest strengthening effect, under dislocation strengthening and fine grain strengthening, the surface hardness of the specimen increases from 520 HV0.1 to 601 HV0.1, the peak of the residual stress is -1141 MPa, higher hardness and residual stress could improve the material resistance to adhesion and friction and wear, so that the wear resistance of the material is greatly improved, and the wear rate is reduced by 60.7%. Therefore, this process shall be the best shot peening process.

Key words: shot peening process, 4Cr5Mo2V steel, friction and wear, shot peening strengthening

中图分类号:

TG668

牛童, 王昕宇, 吴晓春. 喷丸工艺对4Cr5Mo2V钢表面性能与磨损行为的影响[J]. 金属热处理, 2023, 48(12): 153-159.

Niu Tong, Wang Xinyu, Wu Xiaochun. Effect of shot peening process on surface properties and wear behavior of 4Cr5Mo2V steel[J]. Heat Treatment of Metals, 2023, 48(12): 153-159.

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喷丸工艺对4Cr5Mo2V钢表面性能与磨损行为的影响

Effect of shot peening process on surface properties and wear behavior of 4Cr5Mo2V steel

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