Institutional Repository of Coll Mat Sci & Engn
Effect of Ca addition on the microstructure, mechanical properties and corrosion rate of degradable Zn-1Mg alloys | |
Li, Qinglin1; Wei, Min1; Yang, Jing2; Zhao, Zhixin1; Ma, Jiqiang1; Liu, Dexue1; Lan, Yefeng1 | |
2021-12-20 | |
发表期刊 | JOURNAL OF ALLOYS AND COMPOUNDS |
ISSN | 0925-8388 |
卷号 | 887 |
摘要 | The microstructural evolution, mechanical properties and degradation behaviors of as-cast Zn-1Mg alloy and Zn-1Mg-xCa (x = 0.3 wt% and 0.5 wt%) alloys were investigated. The microstructural evolution showed that adding Ca element effectively refined alpha-Zn from coarse dendrites to equiaxed grains, and the average size gradually decreased with the increasing contents of Ca in Zn-1Mg alloy. Moreover, the morphology of eutectic Mg2Zn11 phases changed from lamellar shape to honeycomb, and the amount of precipitated CaZn13 phases distributed in grain boundaries increased, when the 0.3 wt% and 0.5 wt.%Ca were introduced into Zn-1Mg alloy melt. Tensile test results revealed that the yield strength (YS), ultimate tensile strength (UTS) and elongation (El) of Zn-1Mg-0.5Ca alloy (118.7 MPa, 169.3 MPa, 3.42% for YS, UTS and El, respectively) is improved by 40.5%, 41.4% and 189.8%, respectively, compared with Zn-1Mg alloy (84.5 MPa, 119.7 MPa, 1.18% for YS, UTS and El, respectively). The method of electrochemical polarization testing was employed to measure the corrosion rate of Zn-1Mg-xCa alloys in Hanks simulated body fluid. The result exhibited that the corrosion rate of Zn-1Mg alloy without and with 0.3 wt% and 0.5 wt%Ca addition gradually increased, which was 0.125 mm.a(-1), 0.176 mm.a(-1) and 0.190 mm.a(-1), respectively. In addition, the corrosion rates of Zn-1Mg-xCa alloys immersed in Hank's solution holding for one month were summarized as: as-cast Zn-1Mg-0.5Ca alloy (0.182 mm.a(-1))> as-cast Zn-1Mg-0.3Ca alloy (0.168 mm.a(-1))> as-cast Zn-1Mg alloy (0.134 mm.a(-1)). The investigation of mechanical properties and corrosion rate demonstrated that newly developed Zn-1Mg alloys with Ca addition can be thought of a hopeful biodegradable medical material. (C) 2021 Elsevier B.V. All rights reserved. |
关键词 | Microstructural evolution Mechanical properties Degradation behaviors |
DOI | 10.1016/j.jallcom.2021.161255 |
收录类别 | SCIE ; EI ; SCOPUS |
语种 | 英语 |
WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
WOS类目 | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
WOS记录号 | WOS:000697520100003 |
出版者 | ELSEVIER SCIENCE SA |
EI入藏号 | 20213210734291 |
EI主题词 | Corrosion rate |
EI分类号 | 461.2 Biological Materials and Tissue Engineering - 539.1 Metals Corrosion - 542.2 Magnesium and Alloys - 546.3 Zinc and Alloys - 549.2 Alkaline Earth Metals - 801.4.1 Electrochemistry - 802.2 Chemical Reactions - 931.2 Physical Properties of Gases, Liquids and Solids - 951 Materials Science |
来源库 | WOS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/148868 |
专题 | 材料科学与工程学院 省部共建有色金属先进加工与再利用国家重点实验室 |
通讯作者 | Li, Qinglin; Yang, Jing |
作者单位 | 1.Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ, Hosp 2, Lanzhou 730050, Peoples R China |
第一作者单位 | 材料科学与工程学院 |
通讯作者单位 | 材料科学与工程学院 |
第一作者的第一单位 | 材料科学与工程学院 |
推荐引用方式 GB/T 7714 | Li, Qinglin,Wei, Min,Yang, Jing,et al. Effect of Ca addition on the microstructure, mechanical properties and corrosion rate of degradable Zn-1Mg alloys[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,887. |
APA | Li, Qinglin.,Wei, Min.,Yang, Jing.,Zhao, Zhixin.,Ma, Jiqiang.,...&Lan, Yefeng.(2021).Effect of Ca addition on the microstructure, mechanical properties and corrosion rate of degradable Zn-1Mg alloys.JOURNAL OF ALLOYS AND COMPOUNDS,887. |
MLA | Li, Qinglin,et al."Effect of Ca addition on the microstructure, mechanical properties and corrosion rate of degradable Zn-1Mg alloys".JOURNAL OF ALLOYS AND COMPOUNDS 887(2021). |
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