TY - JOUR
T1 - Laser and resistance joining of aluminum-graphite composite
AU - Velamati, M.
AU - Aguilar, E.
AU - Garza-Castañon, M. A.
AU - Hung, N. P.
AU - Powers, M.
N1 - Funding Information:
This material is based upon work supported by the National Science Foundation under grant #0552885 and TAMU-CONACyT grant #246734. Contribution from Metal Matrix Cast Composites is much appreciated.
Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012/11/1
Y1 - 2012/11/1
N2 - This research investigates welding and brazing of Al-Gr composite using different joining techniques. Limited success is obtained for laser welding since laser degrades the mechanical properties at the weld due to defects in the resolidified aluminum matrix, delamination of graphite fibers, and formation of brittle aluminum carbide Al
4C
3. Brazing is the preferred technique since the low brazing temperature of filler material suppresses the formation of Al
4C
3 while minimizing shrinkage cavities in the joint. Microstructural study and shear testing confirms the success of joining Al-Gr by laser brazing and resistance brazing with Zn-Al filler.
AB - This research investigates welding and brazing of Al-Gr composite using different joining techniques. Limited success is obtained for laser welding since laser degrades the mechanical properties at the weld due to defects in the resolidified aluminum matrix, delamination of graphite fibers, and formation of brittle aluminum carbide Al
4C
3. Brazing is the preferred technique since the low brazing temperature of filler material suppresses the formation of Al
4C
3 while minimizing shrinkage cavities in the joint. Microstructural study and shear testing confirms the success of joining Al-Gr by laser brazing and resistance brazing with Zn-Al filler.
UR - http://www.scopus.com/inward/record.url?scp=84865856757&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84865856757&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/0c75cb4d-6ddd-3c4b-9e21-dbd9a5cc2f96/
U2 - 10.1016/j.jmatprotec.2012.06.001
DO - 10.1016/j.jmatprotec.2012.06.001
M3 - Article
SN - 0924-0136
VL - 212
SP - 2549
EP - 2557
JO - Journal of Materials Processing Technology
JF - Journal of Materials Processing Technology
IS - 11
ER -