热作模具用H13和Dievar钢的热疲劳性能

doi:10.13251/j.issn.0254-6051.2022.03.032

金属热处理 ›› 2022, Vol. 47 ›› Issue (3): 165-172.DOI: 10.13251/j.issn.0254-6051.2022.03.032

热作模具用H13和Dievar钢的热疲劳性能

吴方俊^1,2, 邓小云³, 揭晓华¹, 郑开宏^2,4, 骆智超^2,4

1.广东工业大学材料与能源学院, 广东广州 510006;
2.广东省科学院材料与加工研究所广东省金属强韧化技术与应用重点实验室, 广东广州 510650;
3.广州华德汽车弹簧有限公司, 广东广州 511356;
4.广东省钢铁基复合材料工程研究中心, 广东广州 510650

收稿日期:2021-11-13 修回日期:2022-01-25 出版日期:2022-03-25 发布日期:2022-04-22
通讯作者: 骆智超,高级工程师,博士,E-mail:luozhichao@gimp.gd.cn
作者简介:吴方俊(1991—),男,硕士研究生,主要研究方向为热作模具钢疲劳性能,E-mail:623909677@qq.com。
基金资助:
广东省重点研发计划(2020B010184001,2020B0101340004);广东省科学院建设国内一流研究机构行动专项资金(2020GDASYL-202001031342021,GDASYL-20210102002)

Thermal fatigue properties of H13 and Dievar steels for hot-work die

Wu Fangjun^1,2, Deng Xiaoyun³, Jie Xiaohua¹, Zheng Kaihong^2,4, Luo Zhichao^2,4

1. College of Materials and Energy, Guangdong University of Technology, Guangzhou Guangdong 510006, China;
2. Guangdong Provincial Key Laboratory of Metal Strengthening and Toughening Technology and Application, Institute of Materials and Processing, Guangdong Academy of Sciences, Guangzhou Guangdong 510650, China;
3. Guangzhou Huade Automobile Spring Co., Ltd., Guangzhou Guangdong 511356, China;
4. Guangdong Engineering Research Center for Steel Matrix Composite Materials, Guangzhou Guangdong 510650, China

Received:2021-11-13 Revised:2022-01-25 Online:2022-03-25 Published:2022-04-22

摘要/Abstract

摘要： 对比研究了回火温度对热作模具用H13和Dievar钢热疲劳性能的影响。H13和Dievar钢经过520、580和640 ℃回火处理后,采用自主搭建的Uddeholm自约束疲劳试验装置分别对试样进行1000次热疲劳试验,并用热疲劳损伤因子对热疲劳损伤过程进行定量描述。结果表明,在相同回火温度下,Dievar钢具有较低的硬度和较高的冲击性能,抗疲劳性能优于H13钢。H13和Dievar钢在580 ℃ 回火处理后,碳化物尺寸分别约为10.1 μm和6.3 μm,H13钢碳化物含量高且尺寸大,导致韧性和抗热疲劳性能降低。

关键词: 热作模具钢, H13钢, Dievar钢, 淬回火, 碳化物, 热疲劳

Abstract: Effect of tempering temperature on thermal fatigue properties of the H13 and Dievar hot-work die steels was investigated. The Uddeholm self-constrained thermal fatigue test was conducted on the specimens tempered at 520, 580 and 640 ℃, and the thermal fatigue damage factors were obtained to quantify the fatigue damage of the steels. The results show that the Dievar steel has a lower hardness but higher impact property than that of the H13 steel tempered at the same temperature, and possesses better thermal fatigue resistance. Tempered at 580 ℃, the carbide sizes of the H13 steel and Dievar steel are about 10.1 μm and 6.3 μm, respectively. The high carbide content and large size of the H13 steel result in the decrease of toughness and thermal fatigue resistance.

Key words: hot-work die steel, H13 steel, Dievar steel, quenching and tempering, carbide, thermal fatigue

中图分类号:

TG111

吴方俊, 邓小云, 揭晓华, 郑开宏, 骆智超. 热作模具用H13和Dievar钢的热疲劳性能[J]. 金属热处理, 2022, 47(3): 165-172.

Wu Fangjun, Deng Xiaoyun, Jie Xiaohua, Zheng Kaihong, Luo Zhichao. Thermal fatigue properties of H13 and Dievar steels for hot-work die[J]. Heat Treatment of Metals, 2022, 47(3): 165-172.

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热作模具用H13和Dievar钢的热疲劳性能

Thermal fatigue properties of H13 and Dievar steels for hot-work die

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