Effect of Molybdenum on the Wear Properties of (Ti,Mo)C-TiB2-Mo2B Particles Reinforced Fe-Based Laser Cladding Composite Coatings
Effect of Molybdenum on the Wear Properties of (Ti,Mo)C-TiB2-Mo2B Particles Reinforced Fe-Based Laser Cladding Composite Coatings
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DOI：
10.1115/1.4039411
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发表时间：
2018-02
影响因子：
2.5
通讯作者：
M. Zhang;S. Luo;Suwen Liu;Xiao-Ning Wang
中科院分区：
文献类型：
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作者：
M. Zhang;S. Luo;Suwen Liu;Xiao-Ning Wang
采用激光熔覆技术制备了(Ti，Mo)C、TiB2和Mo2B颗粒增强铁基复合涂层。研究了钼对涂层组织和磨损性能的影响。结果表明，涂层中形成了块状或立方体的TiB2、Mo2B和花状的(Ti，Mo)C陶瓷增强相。随着FeMo70含量的增加，增强相尺寸减小。当FeMo70的加入量超过9 wt%时，涂层出现裂纹。当FeMo70的加入量为9 wt %时，激光熔覆层具有良好的耐磨性。随着FeMo70含量的增加，涂层抗微切削、微犁削和表面塑性变形的能力增强。
(Ti,Mo)C, TiB2, and Mo2B particles reinforced Fe-based composite coatings were fabricated by laser cladding process. The effects of Molybdenum (Mo) on the microstructure and wear properties of the coatings were investigated. The results show that block-like or cuboidal TiB2, Mo2B and flower-like (Ti, Mo)C ceramics reinforcements were formed in the coatings. The size of reinforcements reduced with the increasing of FeMo70. However, cracks were found in the coating, while the addition of FeMo70exceeded 9 wt %. The laser cladding coating presented a good wear resistance with a 9 wt % addition of FeMo70. With the increasing of FeMo70, the coatings enhanced the capability of resisting microcutting, microplowing, and surface plastic deformation.