Laser cladding of high‐entropy alloy on H13 steel

作者：Xiaotao Liu, Wen‐Bin Lei, Jie Li, Yu Ma, Weiming Wang, Baohua Zhang, Changsheng Liu, Jianzhong Cui · 发表于：Rare Metals · 年份：2014 · DOI：10.1007/s12598-014-0403-3 · 被引用次数：37 · 研究领域：High Entropy Alloys Studies、High-Temperature Coating Behaviors、Additive Manufacturing Materials and Processes

Abstract High‐entropy alloy layer up to 150 μm 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.