|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||High Entropy Alloys VIII
||Preparation of CoCrFeNi High-entropy Alloy via Electro-deoxidation of Metal Oxides
||Yu Yang, Tongxiang Ma, Mengjun Hu, Pengjie Liu, Liangying Wen, Liwen Hu, Meilong
|On-Site Speaker (Planned)
High entropy alloys (HEAs) have attracted extensive attention due to their excellent properties for various applications. In this work, single-phase equiatomic CoCrFeNi high-entropy alloy (HEA) was prepared by one-step electrolysis of solid oxides in molten CaCl2 at 900℃. The effect of solid oxides porosity on the current efficiency and mechanical property were investigated using electrochemical workstation and Vickers hardness tester. The Vickers hardness and current efficiency of as-prepared CoCrFeNi alloy are negatively correlated with solid oxides porosity. Varying the porosity of solid oxides, the CoCrFeNi HEAs ranging from powders to solid block could be prepared which provides a possibility for additive manufacturing. The corrosion behavior of the CoCrFeNi HEA is excellent in different aqueous solution which investigated by polarization curve tests. The aim of the current study is to highlight the versatility of a simple electrochemical method for HEAs preparation in a straightforward, low-energy and cost-affordable process.
||Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume