Wetting behaviors of TiC0.4N0.6 and CoCrNi medium-entropy alloy system
作者： Xiu-qi Zan , Ji-fei Zhu , Li Zhang , Tao Liu , Qun Ling
DOI: 10.1016/J.IJRMHM.2021.105502
关键词:
摘要: Abstract Adopting CoCrNi medium-entropy alloy (MEA) with high strength and toughness as the binder metal can be a solution for property improvement of cermets. To explore feasibility MEA optimize sintering process, contact angle evolutions between liquid equiatomic binderless TiC0.4N0.6 substrate under purity Ar vacuum conditions were tested by sessile drop method. Microstructure composition changes system after testing observed analyzed. The results show that initial angles their corresponding temperatures are 20.8° (1415 °C) 20.6° (1447 °C), respectively. In substrate, structure CoCrNi- gradient phase hard is formed. Different from situation, condition, during 1450 °C dwell stage, overflows along surface its diffusion penetration ability in distinctly weakened. A noteworthy advantage atmosphere stage this revealed. Wetting behavior Ni adopted comparison. proved to an adequate TiCN-based cermets
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