Jie Wang, Yu-ling Tang, Shun Li, Zhouran Zhang, Y. Ye, Li'an Zhu, S. Bai
{"title":"Mixing Entropy Threshold for Entropy-Tailored Materials","authors":"Jie Wang, Yu-ling Tang, Shun Li, Zhouran Zhang, Y. Ye, Li'an Zhu, S. Bai","doi":"10.2139/ssrn.3897764","DOIUrl":null,"url":null,"abstract":"To determine the effect of mixing entropy on multicomponent alloys and to find the mixing entropy threshold for entropy-tailored materials, including high-entropy alloys and medium-entropy alloys, the microstructure and mechanical properties of 23 Ti-Zr-Nb-V alloys were investigated. The Laves phase content of Ti-Zr-Nb-V alloys was obtained using image recognition technology . According to the component threshold for Laves phases and HCP phase disappearance, V(Nb)-Zr(Ti) pseudo-binary phase diagrams, which can predict the phases of ternary Ti-Zr-V and Zr-Nb-V alloys, were established. By comparing the Laves phase content in Ti-Zr-Nb-V alloys obtained from experimental statistics, pseudo-binary phase diagrams and thermodynamic calculations, the Δ S mix threshold for entropy-tailored materials was 1.10~1.21R. The dependence of the yield strength and fracture strain of the Ti-Zr-Nb-V alloys further reveals that the mechanical properties of entropy-tailored alloys are essentially controlled.","PeriodicalId":7765,"journal":{"name":"AMI: Scripta Materialia","volume":"51 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"AMI: Scripta Materialia","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.3897764","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
To determine the effect of mixing entropy on multicomponent alloys and to find the mixing entropy threshold for entropy-tailored materials, including high-entropy alloys and medium-entropy alloys, the microstructure and mechanical properties of 23 Ti-Zr-Nb-V alloys were investigated. The Laves phase content of Ti-Zr-Nb-V alloys was obtained using image recognition technology . According to the component threshold for Laves phases and HCP phase disappearance, V(Nb)-Zr(Ti) pseudo-binary phase diagrams, which can predict the phases of ternary Ti-Zr-V and Zr-Nb-V alloys, were established. By comparing the Laves phase content in Ti-Zr-Nb-V alloys obtained from experimental statistics, pseudo-binary phase diagrams and thermodynamic calculations, the Δ S mix threshold for entropy-tailored materials was 1.10~1.21R. The dependence of the yield strength and fracture strain of the Ti-Zr-Nb-V alloys further reveals that the mechanical properties of entropy-tailored alloys are essentially controlled.