金属热处理 ›› 2025, Vol. 50 ›› Issue (11): 328-332.DOI: 10.13251/j.issn.0254-6051.2025.11.049

• 表面工程 • 上一篇    下一篇

微弧氧化时间对TC4合金表面陶瓷膜层物相与性能的影响

范兴平1,2, 范维3   

  1. 1.攀枝花学院 钒钛学院, 四川 攀枝花 617000;
    2.四川省钒钛材料工程技术研究中心, 四川 攀枝花 617000;
    3.攀枝花学院 图书馆, 四川 攀枝花 617000
  • 收稿日期:2025-06-07 修回日期:2025-09-15 发布日期:2025-12-16
  • 作者简介:范兴平(1979—),男,教授,博士,主要研究方向为金属表面改性,E-mail:fanxingping123@163.com
  • 基金资助:
    四川省钒钛材料工程技术研究中心科研项目(2024FTGC12);绿色催化四川省高校重点实验室开放基金(LYJ2302)

Effect of micro-arc oxidation time on phase and properties of ceramic film on TC4 titanium alloy

Fan Xingping1,2, Fan Wei3   

  1. 1. School of Vanadium and Titanium, Panzhihua University, Panzhihua Sichuan 617000, China;
    2. Sichuan Technology &Engineering Research Center for Vanadium Titanium Materials, Panzhihua Sichuan 617000, China;
    3. Library of Panzhihua University, Panzhihua Sichuan 617000, China
  • Received:2025-06-07 Revised:2025-09-15 Published:2025-12-16

摘要: 在Na2SiO3电解液中,采用微弧氧化技术在TC4钛合金表面制备陶瓷膜层,利用扫描电镜(SEM)、X射线衍射仪(XRD)、显微硬度计及摩擦磨损试验机研究了微弧氧化时间对膜层表面形貌、物相及耐磨性的影响。结果表明,经微弧氧化处理后,TC4合金表面微弧氧化陶瓷膜层含金红石型TiO2和SiO2硬质相,合金耐磨性得到改善。随微弧氧化时间增加,膜层中的孔洞先增大后减小,孔洞数量逐渐减少,硬度亦呈先升高再降低的趋势。微弧氧化3 min时,合金硬度达到最大值455 HV0.5,平均摩擦因数约为0.12,耐磨性最优。

关键词: TC4钛合金, 微弧氧化, 陶瓷膜, 物相, 硬度, 耐磨性

Abstract: Effect of micro-arc oxidation time on the surface morphology, phase composition and wear resistance of a ceramic film on the surface of TC4 titanium alloy prepared by micro-arc oxidation technology in Na2SiO3 electrolyte was systematically investigated by using scanning electron microscope (SEM), X-ray diffractometer (XRD), microhardness tester and friction and wear tester. The results show that after micro-arc oxidation treatment, the micro-arc oxidation ceramic film on the surface of TC4 alloy contains rutile-type TiO2 and SiO2 hard phases, and the wear resistance of the alloy is improved. With the increase of micro-arc oxidation time, the pores in the film first increase and then decrease, the number of pores gradually decreases, and the hardness also shows a trend of first increasing and then decreasing. When the micro-arc oxidation time is 3 min, the hardness of the alloy reaches the maximum value of 455 HV0.5, the average friction coefficient is approximately 0.12, and the wear resistance is optimal.

Key words: TC4 alloy, micro-arc oxidation, ceramic film, phase, hardness, wear resistance

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