期刊
JOURNAL OF MAGNESIUM AND ALLOYS
卷 6, 期 2, 页码 107-113出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jma.2018.04.003
关键词
Magnesium alloys; Microstructure; Mechanical properties; Double continuously extrusion
资金
- national key research and development plan [2016YFC1102100]
- National Natural Science Foundation of China [51501110, 51728202, 11332013, 51501115]
- Natural Science Foundation of Shanghai [15ZR1422600]
- Shanghai Jiao Tong University Medical-engineering Cross Fund [YG2015MS66, YG2014MS62]
We prepare a new type of patented biodegradable biomedical Mg-Nd-Zn-Zr (JDBM) alloy system and impose double continuously extrusion (DCE) processing. The lowest processing temperature is 250 degrees C for JDBM-2.1Nd and 310 degrees C for JDBM-2.8Nd, which increases with the Nd concentration. The highest yield strength of 541 MPa is achieved in JDBM-2.1 Nd samples when extruded at 250 degrees C and the elongation is about 3.7%. Moreover, the alloy with a lower alloying element content can reach a higher yield strength while that with a higher alloying element content can reach a larger elongation after DCE processing. However, when extruded under the same conditions, the alloy with a higher alloying contents exhibits better tensile properties. (C) 2018 Published by Elsevier B.V.
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