University of Oulu

Huai Yao, Jiuba Wen, Yi Xiong, Yan Lu, Fengzhang Ren, Wei Cao, Extrusion temperature impacts on biometallic Mg-2.0Zn-0.5Zr-3.0Gd (wt%) solid-solution alloy, Journal of Alloys and Compounds, Volume 739, 2018, Pages 468-480, ISSN 0925-8388, https://doi.org/10.1016/j.jallcom.2017.12.225. (http://www.sciencedirect.com/science/article/pii/S0925838817344213) Keywords: Magnesium alloys; Microstructure; Mechanical properties; Corrosion; Extrusion

Extrusion temperature impacts on biometallic Mg-2.0Zn-0.5Zr-3.0Gd (wt%) solid-solution alloy

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Author: Yao, Huai1,2; Wen, Jiuba1,2; Xiong, Yi1,2;
Organizations: 1School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang Henan 471023, China
2Collaborative InnovationCenter of Nonferrous Metals of Henan Province, Luoyang Henan 471023, China
3Nano and Molecular Systems Research Unit, University of Oulu, FIN-90014, Finland
4School of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu 241000, China
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe201801111229
Language: English
Published: Elsevier, 2018
Publish Date: 2019-12-27
Description:

Abstract

To obtain ideal implant materials, we hot extruded Mg-2.0Zn-0.5Zr-3.0Gd solid-solution alloys, and studied extrusion temperature impacts on materials properties. Fine dynamic recrystallized (DRXed) grains (∼5 μm) and elongated coarse un-dynamic recrystallized (unDRXed) deformed grains turned out at the range of 470–490 °C, but changed to bigger ones (∼8 μm) and abnormal growth (30–40 μm) at 490–510 °C. Precipitated phases consist of rod-like (Mg, Zn)₃Gd particles and newly precipitated Mg₂Zn₁₁ rectangles. The alloy extruded at 490 °C meets all mechanical and anticorrosive requirements for biomaterials, thanks to evenly distributed second phases via the solid solution, and the grain refinements through the hot extrusion.

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Series: Journal of alloys and compounds
ISSN: 0925-8388
ISSN-E: 1873-4669
ISSN-L: 0925-8388
Volume: 739
Pages: 468 - 480
DOI: 10.1016/j.jallcom.2017.12.225
OADOI: https://oadoi.org/10.1016/j.jallcom.2017.12.225
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
114 Physical sciences
Subjects:
Funding: This work was supported by the Henan new nonferrous metal materials University Science and technology innovation team support program of china (2012IRTSTHN008), the Program for Science, Technology Innovation Talents in Universities of the Henan Province (17HASTIT026), the Science and Technology Project of the Henan Province (152102210077), Education Department of Henan Province (16A430005) and the Science and Technology Innovation Team of the Henan University of Science and Technology (2015XTD006). W. Cao acknowledges financial supports from Oulu University Strategic Grant. W. Cao thanks financial supports from Center for Advanced Steel Research (CASR), University of Oulu.
Copyright information: © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
  https://creativecommons.org/licenses/by-nc-nd/4.0/