金属热处理 ›› 2025, Vol. 50 ›› Issue (1): 317-324.DOI: 10.13251/j.issn.0254-6051.2025.01.048

• 表面工程 • 上一篇    下一篇

滚磨光整加工/QPQ复合处理对TC4钛合金耐磨性的影响

闫源1,2, 李秀红1,2, 李启航1,2, 王德龙1,2, 李文辉2,3   

  1. 1.太原理工大学 机械与运载工程学院, 山西 太原 030024;
    2.太原理工大学 精密加工山西省重点实验室, 山西 太原 030024;
    3.太原理工大学 航空航天学院, 山西 晋中 030600
  • 收稿日期:2024-07-29 修回日期:2024-11-14 出版日期:2025-01-25 发布日期:2025-03-12
  • 通讯作者: 李秀红,教授,博士,E-mail:xhli7489@sina.com
  • 作者简介:闫 源(1997—),男,硕士研究生,主要研究方向为精密零件表面光整加工理论与技术,E-mail:yanyuan0033@163.com。
  • 基金资助:
    中央引导地方科技发展资金(YDZJSX2022A020,YDZJSX2022B004)

Effect of centrifugal barrel finishing/QPQ combined treatment on wear resistance of titanium alloy

YanYuan1,2, Li Xiuhong1,2, Li Qihang1,2, Wang Delong1,2, Li Wenhui2,3   

  1. 1. College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan Shanxi 030024, China;
    2. Shanxi Key Laboratory of Precision Machining, Taiyuan University of Technology, Taiyuan Shanxi 030024, China;
    3. College of Aeronautics and Astronautics, Taiyuan University of Technology, Jinzhong Shanxi 030600, China
  • Received:2024-07-29 Revised:2024-11-14 Online:2025-01-25 Published:2025-03-12

摘要: 针对应用QPQ处理改善钛合金表面性能时存在表面要求高的问题,对TC4钛合金进行了滚磨光整加工/QPQ复合处理,利用XRD、SEM、超景深光学显微镜、白光干涉仪、粗糙度仪、显微维氏硬度计及摩擦磨损试验机研究了滚磨光整加工和QPQ处理对钛合金表面形貌、物相组成、显微硬度和耐磨性的影响。结果表明:TC4钛合金经滚磨光整加工和QPQ复合处理后的表面生成更均匀的钛的氮化物和氧化物,表面质量得到改善,与仅进行磨削时相比,表面粗糙度Ra下降35.7%,显微硬度提升42.74%,平均摩擦因数降低6.56%,磨损率降低38.89%,磨痕深度减少49.81%,耐磨性显著增加。

关键词: 钛合金, 滚磨光整加工, QPQ处理, 显微硬度, 耐磨性

Abstract: Aiming at the high surface requirement when applying QPQ treatment to improve titanium alloy surface properties, centrifugal barrel finishing before QPQ treatment was carried out. The effect of centrifugal barrel finishing/QPQ combined treatment on the surface morphology, phase composition, microhardness and wear resistance of TC4 titanium alloy were studied by means of XRD, SEM, ultra-depth of field optical microscope, white light interferometer, roughness meter, micro-Vickers hardness tester and friction and wear tester. The results show that more uniform titanium nitrides and oxides are formed on the surface of TC4 titanium alloy after centrifugal barrel finishing composite QPQ treatment, and the surface quality is improved as the surface roughness Ra decreases by 35.7% than that of only grinding, the microhardness increases by 42.74%, the average friction coefficient decreases by 6.56%, the wear rate decreases by 38.89%, and the wear scar depth decreases by 49.81%, indicating that the wear resistance increased significantly.

Key words: titanium alloy, centrifugal barrel finishing, QPQ treatment, microhardness, wear resistance

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