唐伟清,罗军明,陈宇海,徐吉林

• 1:南昌航空大学材料科学与工程学院
• 2:航空公司成都飞机工业(集团)有限责任公司

摘要(Abstract)：

通过激光冲击强化(LSP)在TC4钛合金表面制备细晶粒过渡层，再采用微弧氧化(MAO)制备LSP-MAO复合涂层，研究TC4钛合金表面MAO涂层及LSP-MAO复合涂层的显微组织、相结构、显微硬度和耐磨性。结果表明：激光冲击强化处理后，TC4钛合金衍射峰变宽，表层晶粒明显细化。与MAO涂层相比，LSP-MAO复合涂层表面的孔径更小，表面更加平整，显微硬度和强化层深度有所增加，其中激光冲击2次时显微硬度最高，达到636.3 HV0.025(距离表面30μm处),其强化层最大深度达到390μm。LSP-MAO涂层的耐磨性均优于MAO涂层，其中激光冲击强化2次时LSP-MAO复合涂层耐磨性最好。

关键词(KeyWords)： TC4钛合金;激光冲击强化;微弧氧化;显微硬度;耐磨性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51764041)

作者(Author): 唐伟清,罗军明,陈宇海,徐吉林

DOI: 10.13289/j.issn.1009-6264.2022-0395

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