Microstructure and high-temperature wear behavior of laser clad Ni-Ti-Si ternary metal silicide coatings
Microstructure and high-temperature wear behavior of laser clad Ni-Ti-Si ternary metal silicide coatings
复制标题
激光熔覆Ni-Ti-Si三元金属硅化物涂层的显微组织及高温磨损行为
DOI：
10.1016/j.surfcoat.2007.10.029
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发表时间：
2008-03-25
影响因子：
5.4
通讯作者：
Wang, H. M.
中科院分区：
文献类型：
--
作者：
Sheng, W.;Liu, D.;Wang, H. M.
采用激光熔覆工艺在AISI 304不锈钢表面制备了Ni-Ti-Si三元金属硅化物涂层。该涂层由Ni16Ti6Si7初生枝晶和枝晶间fe - ni基固溶体T组成，在高温金属干滑动磨损条件下具有优异的磨料和粘接磨损性能。优异的耐磨性能是由于金属硅化物Ni16Ti6Si7的高硬度和共价优势原子键。涂层的主要磨损机制是涂层的剥离和材料从配合表面转移。(C) 2007 Elsevier B.V.版权所有
Ni-Ti-Si ternary metal silicide coatings were fabricated on AISI 304 stainless steel by laser cladding process. The coatings consisted of Ni16Ti6Si7 primary dendiite and interdendritic Fe-Ni-based solid solution T and exhibited excellent abrasive and adhesive wear resistance under high temperature metallic dry sliding wear conditions. The excellent wear properties were attributed to the high hardness and covalent dominant atomic bond of the metal silicide Ni16Ti6Si7. The dominant wear mechanism of the coating were delamination of the coating and material transfer from the mating surface. (C) 2007 Elsevier B.V. All rights reserved.