Journal
MATERIALS & DESIGN
Volume 32, Issue 7, Pages 3957-3965Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2011.02.003
Keywords
Diffusion bonding; Mechanical properties; Microstructure
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As-cast Al/Mg2Si metal matrix composite was joined by transient liquid phase diffusion bonding using Cu interlayer at various bonding temperatures and durations. This metal matrix composite contained 15% Mg2Si and was produced through in situ technique by gravity casting. Specific diffusion bonding process was applied as a low vacuum technique. The microstructure of joints consisted of Al-alpha, CuAl2 and Mg2Si or Al-alpha and Mg2Si depending on bonding temperature and duration. The maximum shear strength was achieved when samples were bonded at 580 degrees C for 120 min. Micro-hardness and compositional homogeneity of joints across the bonded interface were improved with increasing the bonding duration at 560 degrees C and had no significant changes at 580 degrees C. (C) 2011 Elsevier Ltd. All rights reserved.
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