Laser cladding of high-entropy alloy on H13 steel  

作　　者：Xiao-Tao Liu Wen-Bin Lei Jie Li Yu Ma Wei-Ming Wang Bao-Hua Zhang Chang-Sheng Liu Jian-Zhong Cui 

机构地区：[1]The Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education, Northeastern University [2]School of Materials and Metallurgy, Northeastern University

出　　处：《Rare Metals》2014年第6期727-730,共4页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (No. 50401006);the Fundamental Research Funds for the Central Universities (No. N120409003);the University Students’ Innovation Plan of China (No. 130066)

摘　　要：High-entropy alloy layer up to 150 lm in thickness was formed on H13 substrate with a metallurgical bonding at the coating/substrate interface. Simple solid solution phases were formed in the coating layer with a typical microstructure composed of both dendrite and interdendrite. The microstructure at the top of the cladding zone consists of equiaxed grains while that at the bottom consists of columnar grains. The coating layer exhibits great enhancement in microhardness and wear resistance compared with the H13 substrate.High-entropy alloy layer up to 150 lm in thickness was formed on H13 substrate with a metallurgical bonding at the coating/substrate interface. Simple solid solution phases were formed in the coating layer with a typical microstructure composed of both dendrite and interdendrite. The microstructure at the top of the cladding zone consists of equiaxed grains while that at the bottom consists of columnar grains. The coating layer exhibits great enhancement in microhardness and wear resistance compared with the H13 substrate.

关 键 词：Laser cladding High-entropy alloy MICROHARDNESS Wear rate 

分 类 号：TG174.44[金属学及工艺—金属表面处理]