The microstructure of mechanically alloyed Al-Mg determined by X-ray diffraction peak profile analysis

被引：68

作者：

Gubicza, J

Kassem, M

Ribárik, G

Ungár, T

机构：

[1] Eotvos Lorand Univ, Dept Gen Phys, H-1518 Budapest, Hungary

[2] Eotvos Lorand Univ, Dept Solid State Phys, H-1518 Budapest, Hungary

[3] Suez Canal Univ, Fac Petr & Min, Dept Mat Sci & Engn, Suez, Egypt

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 372卷 / 1-2期

基金：

匈牙利科学研究基金会;

关键词：

Al-Mg alloys; mechanical alloying; X-ray diffraction peak profile analysis; crystallite size; dislocation structure; hardness;

D O I：

10.1016/j.msea.2003.12.016

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of the nominal Mg content and the milling time on the microstructure and the hardness of mechanically alloyed Al-rich Al-Mg solid solutions is studied. The crystallite size distribution and the dislocation structure are characterized by X-ray diffraction (XRD) peak profile analysis and the hardness is obtained from depth-sensing indentation tests. Magnesium gradually goes into solid solution during ball milling and after 3 h an almost complete solid solution is attained. With increasing milling time, the Mg concentration in solid solution, the dislocation density and the hardness increase, whereas the crystallite size decreases. A similar tendency of these parameters is observed at a particular duration of ball milling with increasing nominal Mg content. After 3 h milling there are no changes in both the microstructure and the hardness. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：115 / 122

页数：8

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