A study of phase constitution near the interface of Mg/Al vacuum diffusion bonding

被引:116
作者
Liu, P [1 ]
Li, YJ
Geng, HR
Wang, J
机构
[1] Shandong Univ, Sch Mat Sci & Engn, Key Lab Liquid Struct & Hered Mat, Minist Educ, Jinan 250061, Peoples R China
[2] Jinan Univ, Sch Mat Sci & Engn, Jinan 250022, Peoples R China
关键词
microstructure; diffusion; phase; intermetallic compounds;
D O I
10.1016/j.matlet.2005.02.038
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The characteristics of phase constitution near the interface of Mg/Al diffusion bonded joint are studied by means of scanning electron microscope (SEM), X-ray diffraction (XRD) and transmission electron microscope (TEM). The test results indicated that the obvious diffusion zone forms near the Mg/Al interface as a result of the vacuum diffusion bonding. The diffusion zone of Mg/Al diffusion bonded joint consists of intermetallic compounds MgAl, Mg3Al2 and Mg2Al3. The transition region on Mg side mainly consists of Mg crystals, and the new phase formed is Mg3Al2 intermetallic compounds. This is favorable to the enhancing of the combination strength for Mg substrate/diffusion zone. © 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:2001 / 2005
页数:5
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