Mechanical and Corrosion Behavior of a Biomedical Mg–6Zn–0.5Zr Alloy Containing a Large Number of Twins
作者机构：Institute of Corrosion Science and TechnologyGuangdong 510070China International Joint Laboratory for Light AlloysCollege of Materials Science and EngineeringChongqing UniversityChongqing 400030China Key Laboratory for Light‑Weight MaterialsNanjing Tech UniversityNanjing 210009China School of Mechanical EngineeringYangzhou UniversityYangzhou 225127China School of EngineeringRMIT UniversityCarlton 3053VICAustralia Department of PhysicsDepartment of Materials Science&EngineeringDepartment of Biomedical EngineeringCity University of Hong KongTat Chee AvenueKowloonHong KongChina Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China
出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)
年 卷 期：2023年第36卷第3期
页 面：439-455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：supported by the National Natural Science Foundation of China(Nos.52101132,51871032 and 51901202) the Natural Science Foundation of Jiangsu Province(No.BK20202010) the Basic and Applied Basic Research Project of Guangzhou(202201011250) the City University of Hong Kong Strategic Research Grant(No.7005264)
主 题：Biomedical Mg alloy Corrosion Mechanical anisotropy Texture Twins
摘 要：The strong texture of Mg alloys can lead to strong tension–compression yield asymmetry and corrosion anisotropy,and this will consequently affect the effectiveness of hard tissue implants.A biomedical Mg–6Zn–0.5Zr alloy containing a large number of{1012}primary twins and{1012}–{1012}secondary twins is successfully prepared by cross *** dual twin structure not only removes the tension–compression yield asymmetry completely,but effectively reduces the corrosion anisotropy without compromise of corrosion *** difference between the largest corrosion rate and smallest one is~1.2 times compared to~1.6 times of the original *** is found that the reduced corrosion anisotropy is related to re-distribution of crystallographic orientations by twins.
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