TC11钛合金表面TiN颗粒强化层组织与性能分析  

Structure and Properties of TiN Particles Strengthening Layer on Surface of TC11 Titanium Alloys

作　　者：梁忠伟[1,2] 林子顺 唐荟 李天羿 张宇鹏 BALIGASIMA Patrick LIANG Zhongwei;LIN Zishun;TANG Hui;LI Tianyi;ZHANG Yupeng;BALIGASIMA Patrick(School of Mechanical and Electrical Engineering,Guangzhou University,Guangzhou 510006,China;Guangdong Engineering and Technology Research Centre for Strengthen Grinding and High-Performance Micro/Nano Machining,Guangzhou University,Guangzhou 510006,China;Aerospace Precision Products Inc.,Ltd.,Tianjin 300304,China;China-Ukraine Institute of Welding,Guangdong Academy of Sciences,Guangzhou 510651,China)

机构地区：[1]广州大学机械与电气工程学院,广州510006 [2]广州大学广东省强化研磨高性能微纳加工工程技术研究中心,广州510006 [3]天津市航天精工股份有限公司,天津300304 [4]广东省科学院中乌焊接研究所,广州510651

出　　处：《航空制造技术》2025年第3期41-49,共9页Aeronautical Manufacturing Technology

基　　金：国家重点研发计划(2023YFD2101004,2024YFD2100203);中国高校产学研创新基金(2023KY017);广东省自然科学基金(2023A1515011723);广东省高校重点领域专项(2023ZDZX3016);广东省高校教研项目(2024–906)。

摘　　要：提升TC11钛合金的耐磨损性能对航空发动机关键零部件的安全性能至关重要。基于表面机械研磨处理工艺,通过将研磨球和TiN粉末混合研磨的方式,在TC11钛合金表面实现了晶粒细化和弥散强化,成功制备了基于TiN颗粒增强的强化层,对表面形貌和微观组织特征进行研究,并评估其耐磨损性能。结果表明,处理后的TC11钛合金样品表面粗糙度显著降低,表面硬度和耐磨损性能显著提升。与未处理和仅作普通研磨处理的样品相比,TiN颗粒增强的样品表面粗糙度分别降低了43.29%和23.14%,表面硬度分别提高了9.48%和1.8%,磨痕宽度分别降低了36.18%和33.18%。本文为改善TC11及其他钛合金材料的耐磨损性能提供了一种新的解决方法,对提高航空发动机关键零部件的服役性能具有参考意义。Enhancing the wear resistance of TC11 titanium alloy is crucial for safety performance of key components of the aero-engine.In this paper,based on the surface mechanical atrition treatment,grain refinement and dispersion strengthening were achieved on the surface of TC11 titanium alloy by mixing the grinding ball and TiN powder,and a strengthening layer based on TiN particles was successfully prepared.Surface morphology and microstructure characteristics were investigated,and wear resistance was evaluated.The results indicate that surface roughness of the treated TC11 titanium alloy samples is significantly reduced,while surface hardness and wear resistance properties are significantly improved.Surface roughness of the TiN particles strengthening layer samples decreased by 43.29% and 23.14%,surface hardness increased by 9.48% and 1.8%,and width of the wear tracks decreased by 36.18% and 33.18%,respectively,when compared with the untreated and regular ground ones.This study provides a new approach to enhancing the wear resistance of TC1l and other titanium alloys,which is of reference significance in improving service performance of key components of the aero-engine.

关 键 词：TC11钛合金 表面机械研磨处理 TiN颗粒 强化层 微观组织与性能 

分 类 号：V263[航空宇航科学与技术—航空宇航制造工程] V252[一般工业技术—材料科学与工程]