摘要
钛合金具有密度小、质量轻、比强度高、比刚度高、良好的耐腐蚀性和耐热性、塑韧性好以及优良的加工性等优点,广泛应用于航空航天、交通运输、石油化工、体育器械及生物医疗等众多领域。但钛合金摩擦系数大、易黏着、耐磨性能差、高温(700℃)条件下氧化严重、不易润滑等缺点,大大限制了钛合金的应用和发展。介绍激光熔覆、磁控溅射、离子注入等常见的钛合金表面改性技术的研究现状,指出各种改性技术对钛合金耐磨性能、高温抗氧化性能的改善效果,并探讨各种改性技术的优缺点。在此基础上提出综合提高钛合金耐磨性和高温抗氧化性的新思路并展望其发展前景。
Titanium and its alloys have broad applications in aerospace,transportation,petrochemical industry,spnrts equipment and bio-medical due to their excellent material properties such as low density,high specific strength and rigidity,excellent thermal and corrosion resistance,specific stiffness and high fatigue. However,its shortcomings are also obvious：its large fi＇iction coefficient,stick easily,poorly wear resistance,not lubricate and serious oxidation under the high temperature （700℃） conditions, which have greatly limited the application and development of titanium alloy. This paper introduces the research status of laser cladding,magnetron sputtering,ion implantation and other common titanium alloy surface modification technology. Points out the improvement of each modification technology on the wear l^sistance and high temperature oxidation resistance of titanium alloy,and discusses their advantages and disadvantages. On this basis,a new idea of composite improving the wear resistance and high temperature oxidation resistance of titanium alloy is put forward and prospected its development prospect.
出处
《电焊机》
2017年第3期73-78,共6页
Electric Welding Machine
关键词
钛合金
耐磨性
高温氧化性
表面改性技术
Titanium alloy
wear resistance
oxidation resistance
surface modification technology
