TiAlN涂层刀具的抗高温特性研究  

Elevated Temperature Resistances Properties Research of The TiAlN Coating Tools

作　　者：刘爱华[1] 邓建新[1] 颜培[1] 刘文清 

机构地区：[1]山东大学机械工程学院,山东济南250061 [2]山东法因数控机械股份有限公司,山东济南250101

出　　处：《制造技术与机床》2010年第7期94-96,共3页Manufacturing Technology & Machine Tool

基　　金：国家高技术研究发展计划项目(2009AA044303)"山东省杰出青年基金"资助;泰山学者专项基金资助

摘　　要：对生产中使用较多的多弧离子镀Ti0.45Al0.55N涂层进行了高温特性研究。采用SEM、EDS、XRD等方法考察了高温后的涂层表面并分析了涂层的失效机理,最后考察了温度对硬度的影响。结果表明:TiAlN涂层的最高抗氧化温度可达800℃;氧化及涂层与基体的热涨适配是涂层失效的主要原因;并得知TiAlN涂层刀具在高温下仍能保持高硬度。The elevated temperature properties of Ti0.45Al0.55N coating deposited by multi-arc ion deposition were studied.SEM,EDS and XRD were adopted to observe the surface and analyzed mechanism of the coating failure as well as the influence of temperature on the hardness.The results show that the highest oxidation resistant temperature of the TiAlN coating can reach 800℃;Oxidization and the unmatching of expansion coefficients between coating and substrate are the main reasons for coating failure;At the same time,the conclusion is that the coating has high hardness under elevated temperature.

关 键 词：TIALN 涂层刀具 高温特性 氧化 硬度 

分 类 号：TG711[金属学及工艺—刀具与模具]