Effect of nano-CeO2 on microstructure properties of TiC/TiN+TiCN-reinforced composite coating

Bulletin of materials science

Chen Chuanzhong¹  Zhang Cuifang¹  Li Jianing¹ 

[1] Key Laboratory for Liquidâ€�?�Solid Structural Evolution and Processing of Materials (Ministry of Education), Department of Materials Science, Shandong University, Jinan’ 250061, China$$Key Laboratory for Liquidâ€�?�Solid Structural Evolution and Processing of Materials (Ministry of Education), Department of Materials Science, Shandong University, Jinan’ 250061, ChinaKey Laboratory for Liquidâ€�?�Solid Structural Evolution and Processing of Materials (Ministry of Education), Department of Materials Science, Shandong University, Jinan’ 250061, China$$

关键词: Rare-earth compounds;    surface modification;    laser cladding;    microstructure;    X-ray diffraction;    intermetallic compounds.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

TiC/TiN+TiCN-reinforced composite coatings were fabricated on Tiâ€�??6Alâ€�??4V alloy by laser cladding, which improved surface performance of the substrate. Nano-CeO₂ was able to suppress crystallization and growth of crystals in the laser-cladded coating to a certain extent. With the addition of proper content of nano-CeO₂, this coating exhibited fine microstructure. In this study, Al₃Ti+TiC/TiN+nano-CeO₂ laser-cladded coatings have been studied by means of X-ray diffraction and scanning electron microscope. X-ray diffraction results indicated that Al₃Ti+TiC/TiN+nano-CeO₂ laser-cladded coating consisted of Ti₃Al, TiC, TiN, Ti₂Al₂₀Ce, TiC_0.3N_0.7, Ce(CN)₃ and CeO₂, this phase constituent was beneficial in increasing microhardness and wear resistance of Tiâ€�??6Alâ€�??6V alloy.

【 授权许可】

Unknown