金属加工（热加工）Issue(9)：90-94,5.
一种超高强韧性富Fe多主元合金组织性能研究
Investigation on microstructure and properties of an ultra-strong ductile Fe-rich multi-principal component high-entropy alloy
摘要
Abstract
This study has investigated the microstructure and properties of Fe-rich multi-principal-element alloys(high entropy steels).It was found that excellent tensile properties can be obtained at room temperature through cold rolling and aging heat treatment in Fe40Ni30Co10Cr8Al5Ti7,with a yield strength of 1750MPa and a uniform tensile elongation of 11%.The microstructure of the alloy after cold rolling and aging heat treatment was observed to be composed of a heterogeneous structure of a face centered cubic(FCC)matrix and a precipitated L12-structure strengthening phase.The ultrahigh yield strength is the result of the combination of refined-grain strengthening,dislocations strengthening and precipitation-hardening.The high-density stacking faults generated during deformation resulted in excellent tensile ductility of the alloy.This study shows the importance of L12-type ordered precipitates on the improvement of strength and plasticity on the Fe-rich multi-principal-element alloys(high entropy steels).关键词
富Fe的多主元合金/强化机制/变形机制/异质结构Key words
Fe-rich multi-principal-element alloys/strengthening mechanism/deformation mechanism/heterogenous structure引用本文复制引用
张思邈,伊广震,刘天豪,赵苗青,宋胜男,杜兴蒿..一种超高强韧性富Fe多主元合金组织性能研究[J].金属加工（热加工）,2024,(9):90-94,5.基金项目
沈阳航空航天大学大学生创新创业训练计划支持项目(X202310143089) （X202310143089）
辽宁省科技厅军民融合重点项目(2020JH2/107). （2020JH2/107）
