Microstructures and Mechanical Properties of a New Biomedical Material Mg-13Li-X Alloys
In this paper,a new biomedical Mg-Li alloy for the improvement of the comprehensive mechanical properties by micro-alloying and processing to meet the need of mechanical properties of biomedical materials.And the Mg-Li(Mg-Li-Al-Zn-Ca-Sr)alloys processing and heat treatment were investigated in detail.The crystal texture of cast state,forged state and rolled state were observed and analyzed by OM,XRD and SEM.The mechanical properties of every stage were tested as well.The results showed that the grain size was refined obviously by the concentrating of Ca and Sr in the grain boundary.With the increase of rolling lane,the second phases distribution was changed to a scattered state gradually from the reunion state.The tensile strength of the forged alloy was improved as well as its elongation after cold rolling and with rolled heat treatment process.The tensile strength reached 220MPa and the elongation reach 22%,which might meet the demand of cardiovascular stents mechanics.
Mg-Li alloys Processing The second phase Mechanical properties
Yanchang Zhang Sha Luo Qingqing Zhang Xiaoqing Xu Tietao Zhou
School of Mat. Sci. & Eng., Beihang University, Beijing 100191, China School of chemical sciences, Inner Mongolia Normal University, Huhhot 010000, China
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
251-256
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）