文献类型：期刊文献

英文题名：Corrosion Resistance and Wear Behavior of Ni60/TiC and NbC Composite Coatings Prepared by Laser Cladding

作者：Zhan, Qiang[1,2,3,4];Luo, Fangyan[4];Huang, Jiang[4];Wang, Zhanshan[1];Ma, Bin[1];Liu, Chengpu[2,3]

机构：[1]Tongji Univ, Inst Precis Opt Engn, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab Ultraintense Laser Sci & Technol, Shanghai 201800, Peoples R China;[3]Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China;[4]Guangdong Ocean Univ, Sch Elect & Informat Engn, Zhanjiang 524088, Peoples R China

年份：2025

卷号：18

期号：11

外文期刊名：MATERIALS

收录：SCI-EXPANDED(收录号：WOS:001506573300001)、、EI(收录号：20252418594017)、Scopus(收录号：2-s2.0-105007741817)、WOS

基金：This research was funded by National Natural Science Foundation of China (12074398).

语种：英文

外文关键词：Ni60; TiC; NbC; corrosion resistance; wear behavior; laser cladding

外文摘要：This research delves into the corrosion resistance and wear behavior of Ni60-based composite coatings strengthened by TiC and NbC particles, which are produced by laser cladding. Three distinct coatings were prepared: S1 (Ni60 + 20%TiC), S2 (Ni60 + 10%TiC + 10%NbC), and S3 (Ni60 + 20%NbC). Microstructural characterization revealed that the addition of TiC and NbC altered phase composition, inducing lattice distortion and promoting the formation of carbides such as Cr7C3, Ni3C, and Nb2C. The S2 coating exhibited the highest average microhardness (1045 HV) due to synergistic grain refinement and homogeneous carbide dispersion. Wear resistance followed the order S2 > S3 > S1, attributed to the optimized balance of hard-phase distribution and reduced abrasive wear. Electrochemical tests in 3.5 wt% NaCl solution demonstrated superior corrosion resistance for S3, characterized by the lowest corrosion current density (1.732 x 10(-6) A/cm(2)) and a stable passivation film, facilitated by NbC-induced oxide formation. While S2 achieved peak mechanical performance, S3 excelled in corrosion resistance, highlighting the trade-off between carbide reinforcement and electrochemical stability. This work underscores the potential of tailoring dual-carbide systems in Ni60 coatings to enhance durability in harsh environments.