材料科学
微观结构
合金
热力学
热扩散率
高熵合金
均质化(气候)
传热
冶金
复合材料
生态学
生物
物理
生物多样性
作者
Jingyi Yu,Rende Mu,Shiyu Qu,Yan Cai,Zaoyu Shen
出处
期刊:Vacuum
[Elsevier]
日期:2022-06-01
卷期号:200: 111039-111039
被引量:12
标识
DOI:10.1016/j.vacuum.2022.111039
摘要
AlCoCrFeNiSiYHf high entropy alloys were designed and prepared as new bond-coat material of thermal barrier coatings to meet the requirement of higher thrust-to-weight ratio aero turbine engines. The microstructural and componential evolution of AlCoCrFeNiSiYHf high entropy alloys was studied under 1200 °C to evaluate the potential applications in thermal barrier coatings system. Crystal texture transfer and phase structure were detected to analyze the relationship between element diffusion and phase transformation. The results indicate that heat, which transferred from muffle furnace, might be the driving force for element diffusion and homogenization. An FCC to BCC phase transformation in AlCoCrFeNiSiYHf high entropy alloy is observed after 1 h exposure in 1200 °C. After heat treatment, all mechanical properties we tested have been improved in varying degrees.
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