刘爱华,邓建新,崔海冰,李士鹏,赵军

• 1:山东大学机械工程学院
• 2:山东交通学院工程机械系

摘要(Abstract)：

选用TiN,TiAlN,CrN和CrAlN 4种涂层材料,使用电阻炉对试样加热并保温,进行抗氧化性能实验,利用SEM、EDS和XRD获得了氧化结果。结果表明:Ti基涂层的氧化机制以O原子向涂层内部扩散为主;Cr基涂层的抗氧化机制为N原子和Cr离子向涂层表面的扩散所形成的微孔诱发的氧化;Cr基涂层比Ti基涂层具有较好的抗氧化性;Al的加入使得TiAlN与CrAlN涂层的氧化性能和高温后硬度提高,特别是CrAlN氧化后生成的致密Cr2O3和Al2O3混合氧化物使其抗氧化性能达到最优;氧化及涂层与基体的热涨失配使得几类涂层最终开裂失效;四种涂层的抗氧化能力为CrAlN>TiAlN>CrN>TiN。

关键词(KeyWords)： Ti基;Cr基;氮化物涂层;抗氧化性能;热涨失配

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51075237);; 国家重点基础研究发展计划资助项目(2009CB724402);; 泰山学者专项基金

作者(Author): 刘爱华,邓建新,崔海冰,李士鹏,赵军

DOI: 10.13289/j.issn.1009-6264.2012.06.028

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