摘要
钛合金以其高比强度、低密度等优点,被广泛应用于航空航天零件中。然而,钛合金也存在硬度低、耐磨性差、高温氧化抗力差等弱点,表面应力集中敏感导致的疲劳问题也较突出,需利用表面工程技术克服磨损、腐蚀和疲劳3大问题。介绍了近10年来钛合金耐磨涂层、抗氧化涂层与抗疲劳表面改性技术的研究进展,并对技术发展趋势进行了展望,为表面工程技术的科研和工程人员提供参考。
Titanium alloy is widely used in aerospace parts due to its high specific strength and low density.However,titanium alloys also have weaknesses such as low hardness,poor wear resistance,and poor high-temperature oxidation resistance.Fatigue problems caused by surface stress concentration sensitivity are also prominent.Surface engineering technology needs to be applied to overcome the three major problems of wear,corrosion and fatigue.Here,this article introduces the research progress of wear-resistant coating,anti-oxidation coating and anti-fatigue surface modification technology of titanium alloy in the past ten years,and looks forward to the development trend of technologies,to provide reference for scientific and engineering researches of surface engineering technology.
作者
王欣
罗学昆
宇波
汤智慧
WANG Xin;LUO Xuekun;YU Bo;TANG Zhihui(Surface Engineering Institution,AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China;Aviation Key Laboratory of Advanced Corrosion and Protection on Aviation Materials,AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China)
出处
《航空制造技术》
CSCD
北大核心
2022年第4期14-24,共11页
Aeronautical Manufacturing Technology
基金
国家科技重大专项(J2017-Ⅶ-0001-0094,J2019-Ⅶ-0015-0155)。
关键词
钛合金
磨损
氧化
疲劳
涂层
表面改性
Titanium alloy
Wear
Oxidation
Fatigue
Coating
Surface modification
