文献类型：期刊文献

英文题名：Mechanical properties simulation of AlCrCoFeNi high-entropy alloy by a viscoelastic spring lattice model

作者：Xu, Zhuoran[1];Hu, Xu[1];Huang, Yongmin[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2025

卷号：37

起止页码：4674

外文期刊名：JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T

收录：;EI(收录号：20255219794377);WOS:【SCI-EXPANDED(收录号:WOS:001550197600003)】；

基金：This work was provided by the Fundamental Research Funds for the Central Universities (No. JKD01231701) and Key Laboratory of Specially Functional Polymeric Materials and Related Technology (Ministry of Education) , School of Chemistry and Molecular Engineering, East China University of Science and Technology.

语种：英文

外文关键词：High-entropy alloy; Viscoelastic lattice spring model; Mechanical properties; Fracture development

摘要：High-entropy alloys are analyzed under various loading conditions and with different metal element compositions using a modified viscoelastic spring lattice model. A custom drop structure program has been developed to simulate the microstructure of high-entropy alloys. The results indicate that an increase in aluminium content positively influences the tensile strength of these alloys, although it negatively impacts ductility. Additionally, higher temperatures reduce the maximum tensile strength, likely due to phase transitions occurring within the alloy. The tensile strength also increases under high loading rate conditions, leading to brittleness in the material. At the same time, the influence of various variables on yield stress and yield strain is also studied. Finally, the model effectively simulates the crack development process of high-entropy alloys.