Extrusion temperature impacts on biometallic Mg-2.0Zn-0.5Zr-3.0Gd (wt%) solid-solution alloy
Yao, Huai; Wen, Jiuba; Xiong, Yi; Lu, Yan; Ren, Fengzhang; Cao, Wei (2017-12-27)
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)
© 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/
https://urn.fi/URN:NBN:fi-fe201801111229
Tiivistelmä
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.
Kokoelmat
- Avoin saatavuus [31489]