本团队张茂副教授、2022级硕士生任亮等在Applied Surface Science发表研究论文。

摘要：This paper investigated the high-temperature oxidation behavior of gas-atomized CoCrFeNiCu high-entropy alloy (HEA) powders at 800–1000 °C via techniques including SEM, XRD, and TEM. The results indicated that the oxidation kinetics of HEA powders is highly sensitive to temperature and the oxidation kinetics undergo a tripartite evolution through distinct phases: initially following a power function law, transitioning to a logarithmic law, and culminating in a linear law with temperature rising. The oxide growth patterns shift from external oxidation to internal oxidation. Reducing the powder particle size accelerates the oxidation rate and promotes more thorough oxidation. Multilayered oxides form on powder surfaces and interpenetrate to form continuous oxide scales between adjacent particles.