New magnesium alloys for potential application of implantation biomaterial
New magnesium alloys with optimized chemical compositions with good biocompatibility were designed. Experimental results show that MZ alloy mainly consists of Ca2Mg5Zn5+α (Mg) and MgZn+MgZn2+Mg2Ca+Zn-Zr compounds. Ca has a strong capability for grain refinement in such alloy. Zr can refine magnesium alloy. Zn addition does not refine the solidification microstructure but plays significant strengthening role during aging treatment. The main strengthening phases of Mg-Zn-Zr alloy are γ(MgZn) and δ(Mg2Zn3). The tensile strength of MZ alloy plate aged at 170℃ for 12h is 320MPa, and the elongation-to-failure is 18.4％, the alloy has a potential application of implantation biomaterial.
Magnesium alloy Biomaterial Chemical composition Microstructure Property
Ren-guo Guan Tong Zhao Lin-lin Wang Tong Cui
School of Materials and Metallurgy, Northeastern University, Shenyang, China, 110004 Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, China, 110032
国际会议
青岛
英文
1443-1446
2009-10-09（万方平台首次上网日期，不代表论文的发表时间）