钛表面薄膜技术的应用现状及发展

Progress in Research of Film Technology for Titanium Alloys

钛及钛合金具有比强度高、耐蚀性能好、无磁性等优点,但其所固有的高温易氧化、易发生接触腐蚀、导热系数小等缺点在一定程度上限制了其应用。为此,需对钛合金表面进行处理,而薄膜技术则是一种有效方法。首先概述了薄膜技术在钛材的耐磨处理、抗氧化处理、耐冲蚀处理、电活性功能处理四个方面的研究成果,然后结合作者自身的研究成果及对钛表面处理技术的认识,从钛的应用和薄膜技术的特点出发,提出了今后钛表面薄膜技术在这些方面可能的发展方向。

Titanium and titanium alloys are widely used in industry because of its excellent properties, including high corrosion resistance and high specific strength and non-magnetism. However, titanium alloys have poor oxidation resistance and low coefficient of heat conduction. Film modifications are efficient approach to cope with these issues. In this work, the state-of-the-art of wear resistance modifications, oxidation resistance modifications, erosion resistance modifications and electrochemical functionalizations have been reviewed. According to the applications of titanium alloys and features of film technology, the developing directions of film modifications for titanium alloys are proposed.