Effect of Ti Addition on Microstructure Evolution and Mechanical Properties of Al_(18)Co_(13)Cr_(10)Fe_(14)Ni_(45) Eutectic High-Entropy Alloys
作者机构：Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province)School of Materials Science and EngineeringDalian University of TechnologyDalian116024China
出 版 物：《金属学报:英文版》 (Acta Metallurgica Sinica(English Letters))
年 卷 期：2023年第36卷第9期
页 面：1493-1501页
核心收录：
学科分类：0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0802[工学-机械工程] 0703[理学-化学] 0811[工学-控制科学与工程]
基 金：This work was supported by the National Natural Science Foundation of China(Nos.52001051 and U20A20278) the National Key Research and Development Program of China(Nos.2018YFA0702901 and 2019YFA0209901) the Liao Ning Revitalization Talents Program(No.XLYC1807047) the Major Special Project of“Scientific and Technological Innovation 2025”in Ningbo(No.2019B10086)
主 题：High-entropy alloys Eutectic Microstructure Mechanical properties
摘 要：A series of new(Al_(18)Co_(13)Cr_(10)Fe_(14)Ni_(45))(100−x)Tix(x=0,0.5,1)eutectic high-entropy alloys(EHEAs)were designed and prepared with the aid of empirical parameter calculations and JMatPro software *** effects of Ti addition on the microstructures,phase structures,and mechanical properties of Al_(18)Co_(13)Cr_(10)Fe_(14)Ni_(45) EHEA were *** results show that(Al_(18)Co_(13)Cr_(10)Fe_(14)Ni_(45))_((100−x))Ti_(x)(x=0,0.5,1)EHEAs are composed of the FCC and B2 *** the increase in Ti content,the strength of the EHEAs *** volume fraction of the FCC phase decreases,and the volume fraction of B2 phase increases;the size of nanoprecipitates within the B2 phase decreases and the number of them increases,which could be responsible for the high strength due to the addition of *** them,(Al_(18)Co_(13)Cr_(10)Fe_(14)Ni_(45))99.5Ti0.5 alloy exhibited excellent properties with yield strength,ultimate tensile strength,and ductility of 690 MPa,1065 MPa,and 9.18%,respectively.
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