金属热处理 ›› 2023, Vol. 48 ›› Issue (6): 41-46.DOI: 10.13251/j.issn.0254-6051.2023.06.007

• 工艺研究 • 上一篇    下一篇

脉冲磁场对TC4钛合金表面硬度及微观组织的影响

陈梦浩1, 王哲峰2, 韩劲1, 贺瑞军1, 张旺峰1, 郭嘉琪2, 孔令利1, 倪志铭1   

  1. 1.中国航发北京航空材料研究院, 北京 100095;
    2. 沈阳航空航天大学 航空制造工艺数字化国防重点学科实验室, 辽宁 沈阳 110136
  • 收稿日期:2022-12-04 修回日期:2023-04-24 发布日期:2023-08-11
  • 通讯作者: 韩劲,高级工程师,硕士,E-mail:13661118442@139.com
  • 作者简介:陈梦浩(1995—),男,助理工程师,硕士,主要研究方向为金属功能材料制备及磁场技术应用等,E-mail:17888803240@163.com。
  • 基金资助:
    国家重点研发计划(2018YFE0119500)

Effect of pulsed magnetic field on surface hardness and microstructure of TC4 titanium alloy

Chen Menghao1, Wang Zhefeng2, Han Jin1, He Ruijun1, Zhang Wangfeng1, Guo Jiaqi2, Kong Lingli1, Ni Zhiming1   

  1. 1. AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China;
    2. Key Laboratory of Fundamental Science for National Defence of Aeronautical Digital Manufacturing Process, Shenyang Aerospace University, Shenyang Liaoning 110136, China
  • Received:2022-12-04 Revised:2023-04-24 Published:2023-08-11

摘要: 为强化TC4钛合金的表面硬度, 采用脉冲磁场及铜片驱动的方法, 对TC4钛合金板材进行了不同电压和冲击次数的试验, 并利用显微硬度计、光学显微镜、有限元模拟对试验结果进行分析。结果表明, 脉冲磁场冲击能明显提升TC4钛合金板的表面硬度, 处理后硬度最高值为376.9 HV0.1, 提升率达10.9%, 并促进了β相细小均匀分布;另外在一定范围内, 高能、多次冲击均是提升TC4钛合金板材表面硬度的有效途径。

关键词: 脉冲磁场处理, TC4钛合金, 合金表面强化, 表面硬度, 微观组织

Abstract: In order to improve the surface hardness of TC4 titanium alloy, the pulsed magnetic field and copper sheet driving were adopted to test the TC4 titanium alloy sheet with different voltages and impact times, then the test results were analyzed by using Vickers hardness tester, optical microscope and finite element simulation. The results show that the pulsed magnetic field impact can significantly improve the surface hardness of the TC4 titanium alloy sheet, the maximum hardness value after the treatment is 376.9 HV0.1, and rises 10.9%. In addition, the β phase becomes finer and uniformly distributed. Furthermore, within a certain range, higher energy and multiple impacts are the effective ways to improve the surface hardness of the TC4 titanium alloy sheet.

Key words: pulsed magnetic field processing, TC4 titanium alloy, alloy surface strengthening, surface hardness, microstructure

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