热处理对激光熔覆钴基合金涂层硬度与耐磨性的影响

doi:10.13251/j.issn.0254-6051.2023.07.045

金属热处理 ›› 2023, Vol. 48 ›› Issue (7): 271-276.DOI: 10.13251/j.issn.0254-6051.2023.07.045

热处理对激光熔覆钴基合金涂层硬度与耐磨性的影响

杨栋杰¹, 白峭峰², 欧阳昌耀², 王蕊², 卫润泽²

1.山西机电职业技术学院材料工程系, 山西长治 046011;
2.太原科技大学机械工程学院, 山西太原 030024

收稿日期:2023-03-06 修回日期:2023-06-05 出版日期:2023-07-25 发布日期:2023-09-04
作者简介:杨栋杰(1985—),男,讲师,硕士,主要研究方向为材料加工,E-mail: ydj2005_2006@163.com。
基金资助:
山西省重点研发计划(201903D121051)

Effect of heat treatment on hardness and wear resistance of laser clad Co-based alloy coating

Yang Dongjie¹, Bai Qiaofeng², Ouyang Changyao², Wang Rui², Wei Runze²

1. Department of Materials Engineering, Shanxi Institute of Mechanicle and Electricle Engineering, Changzhi Shanxi 046011, China;
2. School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan Shanxi 030024, China

Received:2023-03-06 Revised:2023-06-05 Online:2023-07-25 Published:2023-09-04

摘要/Abstract

摘要： 采用激光熔覆技术在球墨铸铁表面制备钴基合金涂层,对钴基合金涂层进行了不同工艺的热处理。对不同工艺热处理试样组织进行了分析,讨论了不同工艺对钴基合金涂层硬度和耐磨性的影响。热处理试样的硬度相较于未处理试样均得到了提高。其中950 ℃分别处理1和2 h的试样硬度变化相似,分别为51.35和51.15 HRC,再后续825 ℃时效后的硬度分别为52.50和52.08 HRC。未处理试样的磨损量最高,耐磨性表现最差;其中 950 ℃×1 h + 825 ℃×24 h磨损量减少约5.3%; 950 ℃×3 h+825 ℃×24 h 磨损量减少约12.8%,表现出较好的耐磨性能。

关键词: 激光熔覆, 钴基合金涂层, 热处理, 硬度, 耐磨性

Abstract: Co-based alloy coating was prepared on the surface of ductile iron by laser cladding technology. Microstructure of the specimens under different heat treatment processes was analyzed and the effects of different processes on the hardness and wear resistance of the cobalt-based alloy coating were discussed. Compared with untreated specimens, the hardness of heat-treated specimens is improved. The hardness changes of the specimens treated at 950 ℃ for 1 h and 2 h, respectively, are similar, which are 51.35 HRC and 51.15 HRC, and that subsequent aged at 825 ℃ are 52.50 HRC and 52.08 HRC. The wear amount of the untreated specimen is the highest and the wear resistance is the worst. The wear loss of the specimen treated by 950 ℃×1 h + 825 ℃×24 h reduces by 5.3%, and that of the treated by 950 ℃×3 h+825 ℃×24 h reduces by 12.8%, which shows better wear resistance.

Key words: laser cladding, Co-based alloy coating, heat treatment, hardness, wear resistance

中图分类号:

杨栋杰, 白峭峰, 欧阳昌耀, 王蕊, 卫润泽. 热处理对激光熔覆钴基合金涂层硬度与耐磨性的影响[J]. 金属热处理, 2023, 48(7): 271-276.

Yang Dongjie, Bai Qiaofeng, Ouyang Changyao, Wang Rui, Wei Runze. Effect of heat treatment on hardness and wear resistance of laser clad Co-based alloy coating[J]. Heat Treatment of Metals, 2023, 48(7): 271-276.

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热处理对激光熔覆钴基合金涂层硬度与耐磨性的影响

Effect of heat treatment on hardness and wear resistance of laser clad Co-based alloy coating

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