张永忠,金具涛,黄灿,石力开

• 1:北京有色金属研究总院国家有色金属复合材料工程技术研究中心

摘要(Abstract)：

通过激光熔覆不同比例TA15与Cr3C2的混和粉末,在TA15钛合金表面制备出原位钛基复合材料涂层,分析了涂层的组织、相组成、硬度及界面结合情况。研究表明,激光熔覆过程中,Cr3C2颗粒溶解并与Ti发生反应,在涂层中形成弥散分布的TiC;随原始粉末中Cr3C2添加量的增加,涂层中TiC含量及涂层硬度增加,TiC有等轴颗粒状及枝晶两种形貌;涂层组织致密,与基体呈完全冶金结合,涂层内TiC与钛合金基体界面结合良好,经弯曲及热震试验后,涂层未出现剥落现象,表明涂层与基体具有很好的相容性。

关键词(KeyWords)： 激光熔覆;原位反应;钛基复合材料涂层;硬度;界面

Abstract:

Keywords:

基金项目(Foundation): 国家“973”计划资助项目(2006CB605206-1);; 国家自然科学基金(50871023)

作者(Author): 张永忠,金具涛,黄灿,石力开

DOI: 10.13289/j.issn.1009-6264.2010.03.019

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