Evolution of microstructure and mechanical characteristics of (CrFeNiCu)100-xTix high-entropy alloys

被引：14

作者：

Dilshodbek, Yusupov ^{[1
]}

Hong, Sung Hwang ^{[1
]}

Abbas, Muhammad Aoun ^{[1
]}

Kang, Gyeol Chan ^{[1
]}

Park, Hae Jin ^{[1
]}

Jumaev, Elyorjon ^{[2
]}

Wang, Wei-Min ^{[3
]}

Kim, Ki Buem ^{[1
,4
]}

机构：

[1] Sejong Univ, Dept Nanotechnol & Adv Mat Engn, Seoul 05006, South Korea

[2] Almalyk Mt Min Complex MMC, Almalyk City 110100, Uzbekistan

[3] Shandong Univ, Sch Mat Sci & Engn, Jinan 250100, Peoples R China

[4] New Uzbekistan Univ, Dept Chem Engn, Tashkent 100007, Uzbekistan

来源：

RARE METALS | 2023年 / 42卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

High-entropy alloy (HEA); Microstructure; Mechanical properties; Theoretical parameters; SOLID-SOLUTION PHASE; TENSILE PROPERTIES; STABILITY; OXIDATION; BEHAVIOR;

D O I：

10.1007/s12598-023-02286-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

(CrFeNiCu)(100-x)Ti-x (x = 0, 3, 5, 7 and 10; at%) high-entropy alloys have been designed by the consideration of the thermophysical relationship between Ti and other principal elements to investigate the influence of Ti on the microstructural evolution and mechanical properties of (CrFeNiCu)(100-x)Ti-x high-entropy alloys. The addition of Ti content in HEAs leads to a change in phase formation from dual-phase (FCC1 and FCC2, FCC: face-centered cubic) to the mixture of FCC1, FCC2 phases, and an additional body-centered cubic (BCC) phase. The yield strength and Vickers hardness of the alloys are enhanced from 291 to 1511 MPa and HV 134 to HV 531, respectively, which depends strongly on the volume fraction of BCC phase. On the one hand, the plasticity of the alloys reduces from 45.00% to 24.09%, but it could be considered reasonable plasticity. These results revealed that the addition of a minor alloying element in high-entropy alloys with consideration of thermophysical parameters led to the formation of a multiple solid solution structure with excellent mechanical properties.

引用

页码：3088 / 3098

页数：11

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