维普中文期刊产品整合服务

Microstructure and mechanical properties of CoCrNi-Mo medium entropy alloys:Experiments and first-principle calculations

查看全文 作　　者：Ruobin [1,2]Chang;Wei [1,2]Fang;Jiaohui [2]Yan;Haoyang [2]Yu;Xi [2]Bai;Jia [3]Li;Shiying [4]Wang;Shijian [1,2]Zheng;Fuxing [1,2]Yin 高影响力作者 机构地区：[1]Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology,Tianjin 300132,China;[2]Research Institute for Energy Equipment Materials,School of Materials Science and Engineering,Hebei University of Technology,Tianjin 300132,China;[3]School of Science,Hebei University of Technology,Tianjin 300132,China;[4]School of Materials Science and Engineering,Changzhou University,Changzhou 213164,China高影响力机构 出　　处：《Journal of Materials Science & Technology》索引2021年第3期,共9页高影响力期刊 基　　金：supported financially by the National Natural Science Foundation of China(Nos.51701061 and 51601020);the Natural Science Foundation of Hebei Province(No.E2019202059)。 摘　　要：The effect of Mo additions on the microstructures and mechanical properties of CoCrNi alloys was investigated,meanwhile,ab initio calculations are performed to quantitatively evaluate the lattice distortion and stacking fault energy(SFE).The yield strength,ultimate tensile strength,and elongation of(CoCrNi)_(97)Mo_(3)alloy are 475 MPa,983 MPa and 69%,respectively.The yield strength is increased by~30%and high ductility is maintained,in comparison with CoCrNi alloy.Besides the nano-twins and dislocations,the higher density of stacking faults is induced during the tensile deformation for(CoCrNi)_(97)Mo_(3)alloy.Ab initio calculation results indicate the mean square atomic displacement(MSAD)and SFE value of(CoCrNi)_(97)Mo_(3)alloy is 42.6 pm^(2)and-40.4 mJ/m^(2)at 0 K,respectively.The relationship between mechanical properties and MSAD,SFE for various multiple principal element alloys is discussed. 关 键 词：Medium entropy alloys Severe lattice distortion Stacking fault energy Single phase Mechanical properties Ab initio calculations High entropy alloys
相关文献

参考文献(58)

引证文献(8)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费