Simultaneous enhancement in strength and ductility of Fe_(50)Mn_(30)Co_(10)Cr_(10)high-entropy alloy via nitrogen alloying

作     者：Yu Han Huabing Li Hao Feng Kemei Li Yanzhong Tian Zhouhua Jiang Yu Han;Huabing Li;Hao Feng;Kemei Li;Yanzhong Tian;Zhouhua Jiang

作者机构：School of MetallurgyNortheastern UniversityShenyang 110819China State Key Laboratory of Rolling and AutomationNortheastern UniversityShenyang 110819China School of Materials Science and EngineeringNortheastern UniversityShenyang 110819China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2021年第65卷第6期

页      面：210-215页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.U1960203,51774074,51434004 and U1435205) the Fundamental Research Funds for the Central Universities(No.N180204015) the Shanxi Municipal Major Science&Technology Project(No.20181101014) the Fundamental Research Funds for the Central Universities(No.N172512033) 

主　　题：High-entropy alloy(HEA) Transformation-induced plasticity(TRIP) Twinning-induced plasticity(TWIP) Strength Ductility 

摘      要：The effect of nitrogen on microstructural evolution and tensile properties of transformation-induced plasticity(TRIP)Fe_(50)Mn_(30)Co_(10)Cr_(10)HEAs was *** was fully introduced in solid solution by pressure-induced melting *** addition turned the TRIP alloy to a twinning-induced plasticity(TWIP)alloy,and simultaneously improved the strength and *** the nitrogen-doped HEA,the high yield strength is mainly resulted from the friction stress via interstitial strengthening effect,and the high ductility is originated from retained high strain-hardening capability via the successive onset of dislocation accumulation and deformation *** strain-hardening behavior and microstructural evolution at specified strains were revealed.