热处理工艺对双金属带锯条背材30Cr4MoNiV钢组织和性能的影响

doi:10.13251/j.issn.0254-6051.2022.01.044

金属热处理 ›› 2022, Vol. 47 ›› Issue (1): 266-270.DOI: 10.13251/j.issn.0254-6051.2022.01.044

热处理工艺对双金属带锯条背材30Cr4MoNiV钢组织和性能的影响

陈刚¹, 姚远超¹, 贾寓真^2,3, 苏斌¹, 刘国跃^2,3, 曾斌⁴

1.湖南大学材料科学与工程学院, 湖南长沙 410082;
2.湖南省锯切工程技术研究中心, 湖南长沙 410200;
3.湖南泰嘉新材料科技股份有限公司, 湖南长沙 410200;
4.湖南华菱涟源钢铁有限公司, 湖南娄底 417000

收稿日期:2021-08-24 修回日期:2021-10-21 出版日期:2022-01-25 发布日期:2022-02-18
作者简介:陈刚(1965—),男,教授,博士生导师,主要研究方向为快速凝固与喷射沉积、粉末冶金及金属注射成形、高熵合金及其涂层和金属热处理等,E-mail: chengang@hnu.edu.cn
基金资助:
双金属带锯条背材X32/D6A钢的合金成分优化及应用研究 (618306kj0023)

Effect of heat treatment process on microstructure and properties of base steel 30Cr4MoNiV for bi-metal band saw blade

Chen Gang¹, Yao Yuanchao¹, Jia Yuzhen^2,3, Su Bin¹, Liu Guoyue^2,3, Zeng Bin⁴

1. College of Materials Science and Engineering, Hunan University, Changsha Hunan 410082, China;
2. Sawing Engineering Research Center of Hunan Province, Changsha Hunan 410200, China;
3. Bichamp Cutting Technology Hunan Co., Ltd., Changsha Hunan 410200, China;
4. Hunan Valin Lianyuan Iron and Steel Co., Ltd., Loudi Hunan 417000, China

Received:2021-08-24 Revised:2021-10-21 Online:2022-01-25 Published:2022-02-18

摘要/Abstract

摘要： 采用扫描电镜(SEM)、洛氏硬度计和万能试验机研究了双金属带锯条的背材用钢30Cr4MoNiV经1150~1190 ℃淬火和520~640 ℃回火后的微观组织和力学性能,并通过弯曲疲劳试验和锯切试验来检测30Cr4MoNiV钢的疲劳性能。结果表明:30Cr4MoNiV钢合适的淬火温度为1190 ℃,此时合金元素固溶充分且马氏体组织均匀细小;最佳回火温度为600 ℃,得到回火索氏体组织。经1190 ℃淬火+600 ℃回火3次后,30Cr4MoNiV钢的强塑积为15.64 GPa·%,弯曲疲劳性能由3745次提高到5270次,且锯切疲劳性能比进口CDW钢高25.6%。

关键词: 双金属带锯条, 30Cr4MoNiV钢背材, 热处理, 组织, 疲劳性能

Abstract: Microstructure and mechanical properties of 30Cr4MoNiV steel used for bi-metal band saw blade after quenching at 1150-1190 ℃ and tempering at 520-640 ℃ were investigated by means of scanning electron microscope (SEM), Rockwell hardness tester and universal testing machine, and the fatigue properties of the 30Cr4MoNiV steel were tested by bending fatigue test and cutting test. The results show that the suitable quenching temperature of the 30Cr4MoNiV steel is 1190 ℃, at which the alloying elements are fully dissolved and the resulted martensite structure is uniform and fine; the optimal tempering temperature is 600 ℃, at which the microstructure is tempering sorbite. After quenching at 1190 ℃ and tempering at 600 ℃ for three times, the product of strength and elongation of the 30Cr4MonIV steel is 15.64 GPa·%, the bending fatigue performance increases from 3745 to 5270 times, and the sawing fatigue performance is 25.6% higher than that of imported CDW steel.

Key words: bi-metal band saw blade, base steel 30Cr4MoNiV, heat treatment, microstructure, fatigue properties

中图分类号:

TG161

陈刚, 姚远超, 贾寓真, 苏斌, 刘国跃, 曾斌. 热处理工艺对双金属带锯条背材30Cr4MoNiV钢组织和性能的影响[J]. 金属热处理, 2022, 47(1): 266-270.

Chen Gang, Yao Yuanchao, Jia Yuzhen, Su Bin, Liu Guoyue, Zeng Bin. Effect of heat treatment process on microstructure and properties of base steel 30Cr4MoNiV for bi-metal band saw blade[J]. Heat Treatment of Metals, 2022, 47(1): 266-270.

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热处理工艺对双金属带锯条背材30Cr4MoNiV钢组织和性能的影响

Effect of heat treatment process on microstructure and properties of base steel 30Cr4MoNiV for bi-metal band saw blade

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