有色金属材料与工程2025，Vol.46Issue(6)：77-87,11.DOI:10.13258/j.cnki.nmme.20241023001
合金化和相组成对FeCoCrNi基高熵合金1 000℃氧化性能研究
Alloying and phase composition effects on the oxidation performance of FeCoCrNi-based High entropy alloys at 1 000℃
摘要
Abstract
The exceptional high-temperature properties of nano-precipitation strengthened face-centered cubic high-entropy alloys stem from their dual-phase(γ/γ')structure,which is similar to that of advanced nickel-based superalloys.These alloys are promising candidates for the next generation of heat-resistant structural materials.Bulk(FeCoCrNi)94AlxTi6-x(x=1,3,5,atomic percent)high-entropy alloys were fabricated via a combination of vacuum arc melting,rolling,and heat treatment.The microstructure and oxidation behaviour of the alloys were investigated during isothermal oxidation in static air at 1 000℃for 120 hours.An oxide layer composed of Cr2O3,Al2O3,TiO2,and Ni-Co-Fe-based spinels was observed on the alloy surface.The dense Al2O3 and Cr2O3 layers were found to provide significant protective effects at 1 000℃.The outstanding high-temperature oxidation resistance of FeCoCrNi-based alloys offers valuable technical support for the development of advanced heat-resistant metal materials.关键词
高熵合金/高温抗氧化/氧化层Key words
high-entropy alloy/high temperature antioxidant/oxide layer分类
矿业与冶金引用本文复制引用
陈紫阳,孟繁盛,陈爱英,瞿玉海,丁志义..合金化和相组成对FeCoCrNi基高熵合金1 000℃氧化性能研究[J].有色金属材料与工程,2025,46(6):77-87,11.基金项目
国家自然科学基金资助项目(52303091) （52303091）
上海市自然科学基金资助项目(20ZR1437500) （20ZR1437500）
重庆市自然科学基金资助项目(CSTB2022NSCQ-MSX0389) （CSTB2022NSCQ-MSX0389）
