Mechanically Alloyed Magnesium Based Nanostructured Alloy Powders for Biomedical Applications

被引:0
|
作者
Morcos, P. [1 ]
ElKhodary, K. I. [2 ]
Salem, H. G. [2 ]
机构
[1] Amer Univ Cairo, Nanotechnol Program, New Cairo, Egypt
[2] Amer Univ Cairo, Mech Engn Dept, AUC Ave,POB 74, New Cairo 11835, Egypt
来源
关键词
Magnesium ZK50; Mechanical alloying; Stents; BALL;
D O I
10.1007/978-3-319-52392-7_9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Mechanical alloying (MA) is one of the most commonly used methods in preparing metallic materials. We are especially interested in its ability to produce nanostructured materials. MA has rarely been used in producing nanostructured magnesium base alloys due to the process complexity and flammable nature of the alloy. In this work, high energy ball milling of elemental powders, Mg, Zn and Zr, was investigated for the MA of ZK50 alloy. Crystallite size, lattice strain, as a function of total milling energy (required for complete alloying) were characterized using X-ray diffraction. Scanning electron microscopy was employed to determine the influence of milling time on powder morphology. Consolidation of the milled powders into thin sheets was conducted via hot pipe rolling at 0.4 T-m. Results showed that complete alloying was achieved at 45 milling hours which was associated with particle size reduction to 600 nm and crystallite size of 8.8 nm.
引用
收藏
页码:35 / 41
页数:7
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