热处理工艺对新型抗菌刀具用钢微观组织和性能的影响

doi:10.13251/j.issn.0254-6051.2021.07.025

金属热处理 ›› 2021, Vol. 46 ›› Issue (7): 131-139.DOI: 10.13251/j.issn.0254-6051.2021.07.025

热处理工艺对新型抗菌刀具用钢微观组织和性能的影响

段文峰^1,2,3, 石全强^2,3, 李积回⁴, 沈卓⁵, 张帆⁴, 沈明钢¹, 单以银^2,3

1.辽宁科技大学材料与冶金学院, 辽宁鞍山 114051;
2.中国科学院金属研究所师昌绪先进材料创新中心, 辽宁沈阳 110016;
3.中国科学院金属研究所中国科学院核用材料与安全评价重点实验室, 辽宁沈阳 110016;
4.阳江十八子刀剪制品有限公司, 广东阳江 529500;
5.利勃海尔机械大连有限公司, 辽宁大连 116600

收稿日期:2021-02-25 出版日期:2021-07-25 发布日期:2021-12-10
作者简介:段文峰(1995—),男,硕士研究生,主要研究方向为刀具用钢的微观组织和性能测试,E-mail:duanwff@163.com。
基金资助:
中国科学院创新促进会项目(2017233);阳江市科技局项目(2019016)

Influence of heat treatment process on microstructure and properties of a new type antibacterial tool steel

Duan Wenfeng^1,2,3, Shi Quanqiang^2,3, Li Jihui⁴, Shen Zhuo⁵, Zhang Fan⁴, Shen Minggang¹, Shan Yiyin^2,3

1. School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan Liaoning 114051, China;
2. Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang Liaoning 110016, China;
3. Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang Liaoning 110016, China;
4. Yangjiang Shihaizi Knife and scissors Products Co., Ltd., Yangjiang Guangdong 529500, China;
5. Liebherr Machinery Dalian Co., Ltd., Dalian Liaoning 116600, China

Received:2021-02-25 Online:2021-07-25 Published:2021-12-10

摘要/Abstract

摘要： 以实验室研发的高碳高铬50Cr15MoV含Cu抗菌刀具用钢为研究材料,采用光学显微镜(OM)、扫描电镜(SEM)、透射电镜(TEM)、X射线衍射仪(XRD)和维氏硬度计研究了其在不同热处理工艺下的微观组织和力学性能变化,探索了50Cr15MoV含Cu新型刀具用钢最佳热处理工艺。结果表明,50Cr15MoV含Cu刀具用钢的硬度在正火温度低于1050 ℃时逐渐升高,高于1050 ℃后逐渐降低,并随着回火温度的升高而逐渐下降,同时,50Cr15MoV含Cu刀具用钢经过500 ℃时效30 min后,由于富Cu相的析出,获得良好的抗菌性能,因此50Cr15MoV含Cu刀具用钢最佳热处理工艺为1050 ℃正火保温30 min后油淬+200 ℃回火保温90 min后空冷+500 ℃时效30 min后空冷。

关键词: 50Cr15MoV含Cu刀具用钢, 热处理工艺, 硬度, 抗菌刀具

Abstract: Microstructure and mechanical properties of 50Cr15MoV antibacterial stainless steel with Cu contained were studied by using optical microscope (OM), scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) and Vickers hardness tester. The results show that the hardness of the tested steel increases initially and then decreases with the increase of normalizing temperature; whereas the hardness gradually decreases with the increase of tempering temperature. Besides, after aged at 500 ℃ for 30 min, Cu-rich particles precipitate out so resulting in a good antibacterial performance of the steel. The optimum heat treatments are correspondingly determined as normalizing at 1050 ℃ for 30 min and oil cooling, then tempering at 200 ℃ for 90 min and air cooling, lastly aging at 500 ℃ for 30 min then air cooling.

Key words: 50Cr15MoV tool steel with Cu contained, heat treatment process, hardness, antibacterial tool

中图分类号:

TG156

段文峰, 石全强, 李积回, 沈卓, 张帆, 沈明钢, 单以银. 热处理工艺对新型抗菌刀具用钢微观组织和性能的影响[J]. 金属热处理, 2021, 46(7): 131-139.

Duan Wenfeng, Shi Quanqiang, Li Jihui, Shen Zhuo, Zhang Fan, Shen Minggang, Shan Yiyin. Influence of heat treatment process on microstructure and properties of a new type antibacterial tool steel[J]. Heat Treatment of Metals, 2021, 46(7): 131-139.

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热处理工艺对新型抗菌刀具用钢微观组织和性能的影响

Influence of heat treatment process on microstructure and properties of a new type antibacterial tool steel

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