(Fe, Mn)Zn13 phase and its core-shell structure in novel biodegradable Zn-Mn-Fe alloys

被引：33

作者：

Shi, Zhang-Zhi ^{[1
,2
]}

Li, Zi-Lin ^{[1
]}

Bai, Wen-Shan ^{[1
]}

Tuoliken, Ayisulu ^{[1
]}

Yu, Jing ^{[1
]}

Liu, Xue-Feng ^{[1
,2
,3
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Beijing Lab Metall Mat & Proc Modern Transportat, Beijing 100083, Peoples R China

[3] Univ Sci & Technol Beijing, Minist Educ, Key Lab Adv Mat Proc, Beijing 100083, Peoples R China

来源：

MATERIALS & DESIGN | 2019年 / 162卷

基金：

国家重点研发计划;

关键词：

Alloy design; Thermomechanical processing; Microstructure; Transmission electron microscopy; (Fe; Mn)Zn-13; VITRO DEGRADATION BEHAVIOR; IN-VITRO; MECHANICAL-PROPERTIES; MG; MANGANESE; DESIGN; FABRICATION; METALS; SYSTEM; ROLES;

D O I：

10.1016/j.matdes.2018.11.057

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effects of Fe addition on mechanical properties and microstructures of biodegradable Zn-Mn alloys are unknown yet, which will be revealed in the present study. Minor addition of Fe results in formation of (Fe, Mn)Zn13 phase, which can have a (Fe, Mn)Zn-13/MnZn13 core/shell structure. The core and the shell exhibit a coherent orientation relationship (OR). Between them, there exists a thin interlayer with an irrational OR with respect to either the core or the shell. Although the as-cast alloys are very brittle, their ductilities and strengths can be significantly improved through hot rolling, owing to significant grain refinement of Zn matrix and refinement of the second phase particles. Elongation of the hot-rolled Zn-1Mn-0.1Fe alloy is about 4.8 times of that of the hot-rolled ZnI Mn-0.5Fe alloy, indicating that ductility of Zn-Mn-Fe alloy is very sensitive to Fe content. (C) 2018 The Authors. Published by Elsevier Ltd.

引用

页码：235 / 245

页数：11

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