摘要
介绍了铌合金表面高温抗氧化涂层的4大体系——耐热合金涂层、铝化物涂层、硅化物涂层和贵金属涂层的组成、特点及制备条件。我国研究人员围绕飞机发动机涡轮叶片和火箭发动机燃烧室及尾气喷管用铌合金的防护进行了大量研究工作,研制的高温抗氧化涂层已经用于49kN推力发动机铌合围裙和姿态控制铌合金喷管。通过研究认为,PVD和传统熔烧工艺相结合的新工艺及纳米涂层技术是今后铌合金表面高温涂层制备的研究方向。
Heat-resistant alloy coating, aluminide coating, silicide coating and precious metal coating are four systems of high temperature oxidation resistant coating on Nh alloy surface.In this paper, component, characteristic and preparation method of four coating systems have been reviewed. The new technology of PVD combining with firing and nano-eoating technology are considered the future research trend.
出处
《稀有金属快报》
CSCD
2006年第4期6-9,共4页
Rare Metals Letters
关键词
铌合金
高温抗氧化涂层
涂层性能
制备方法
Nb alloy
high temperature oxidation resistant coating
characteristic of coating
preparation method
