TY - JOUR
T1 - Effect of scandium additions on microstructure and mechanical properties of Al-Zn-Mg alloy welds
AU - Dev, Selvi
AU - Stuart, A.
AU - Kumaar Ravi-Dev, R.C.
AU - Murty, B.S.
AU - Rao, K.P.
PY - 2007
Y1 - 2007
N2 - The microstructure and mechanical properties of fusion zones of medium strength Al–Zn–Mg alloy (RDE-40) welds obtained by using differentfillers containing various amount of scandium was investigated. It was observed that addition of scandium led to very significant grain refinementin the fusion zone especially for scandium levels greater than the eutectic composition (0.55 wt%). The grain refinement led to the reduction insolidification cracking and improved the tensile properties of fusion zone compared to the ones obtained by the commercial AA5556 filler.© 2007 Published by Elsevier B.V.
AB - The microstructure and mechanical properties of fusion zones of medium strength Al–Zn–Mg alloy (RDE-40) welds obtained by using differentfillers containing various amount of scandium was investigated. It was observed that addition of scandium led to very significant grain refinementin the fusion zone especially for scandium levels greater than the eutectic composition (0.55 wt%). The grain refinement led to the reduction insolidification cracking and improved the tensile properties of fusion zone compared to the ones obtained by the commercial AA5556 filler.© 2007 Published by Elsevier B.V.
U2 - 10.1016/j.msea.2007.02.080
DO - 10.1016/j.msea.2007.02.080
M3 - Article
VL - 467
SP - 132
EP - 138
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
SN - 0921-5093
ER -