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将纯Fe粉在Ti6Al4V合金表面进行激光熔覆.通过扫描电镜、X射线衍射、热力学计算和显微硬度测定,可以看出熔覆层中含有大量的树枝晶、块状组织和针状组织;TiO、Fe2C、V5Al3C0.6,LAVES等相弥散分布在激光熔覆层中,提高了熔覆层的硬度.粗大的树枝晶使熔覆层相应部位的硬度偏低.

参考文献

[1] Can Huang;Yongzhong Zhang;Rui Vilar;Jianyun Shen .Dry sliding wear behavior of laser clad TiVCrAISi high entropy alloy coatings on Ti-6A1-4V substrate[J].Materials & design,2012(Oct.):338-343.
[2] 李军,张光钧,李文戈.激光熔覆制备纳米陶瓷涂层的研究进展[J].机械工程材料,2007(11):13-16,39.
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[4] Li Jianing;Chen Chuanzhong;He Qingshan .Influence of Cu on microstructure and wear resistance of TiC/TiB/TiN reinforced composite coating fabricated by laser cladding[J].Materials Chemistry and Physics,2012(2/3):741-745.
[5] 陈建敏,郭纯,周健松.纯钛表面激光熔覆铁基耐磨涂层结构及摩擦学性能[J].中国有色金属学报(英文版),2012(09):2171-2178.
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