TY - JOUR
T1 - Effect of homogenization on the hot deformation behavior of cast AZ31 magnesium alloy
AU - Prasad, Y. V R K
AU - Rao, K. P.
PY - 2009/10
Y1 - 2009/10
N2 - The changes in the hot working behavior of as-cast AZ31 magnesium alloy occurring due to homogenization have been studied using processing maps. The map for as-cast material exhibits three workability domains of dynamic recrystallization, the industrially viable one being in the temperature range of 325-400 °C and strain rate range of 0.3-1.0 s-1. The homogenization treatment, which dissolves the intermetallic particles present at the grain boundaries of as-cast material, improves hot workability by expanding the workability domains and reducing the intercrystalline cracking and flow instability regimes. The rate-controlling mechanisms are however unchanged by the homogenization treatment. © 2009 Elsevier Ltd. All rights reserved.
AB - The changes in the hot working behavior of as-cast AZ31 magnesium alloy occurring due to homogenization have been studied using processing maps. The map for as-cast material exhibits three workability domains of dynamic recrystallization, the industrially viable one being in the temperature range of 325-400 °C and strain rate range of 0.3-1.0 s-1. The homogenization treatment, which dissolves the intermetallic particles present at the grain boundaries of as-cast material, improves hot workability by expanding the workability domains and reducing the intercrystalline cracking and flow instability regimes. The rate-controlling mechanisms are however unchanged by the homogenization treatment. © 2009 Elsevier Ltd. All rights reserved.
KW - Heat treatment (C)
KW - Microstructure (F)
KW - Plastic behavior (F)
UR - http://www.scopus.com/inward/record.url?scp=67349167632&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-67349167632&origin=recordpage
U2 - 10.1016/j.matdes.2009.02.006
DO - 10.1016/j.matdes.2009.02.006
M3 - RGC 21 - Publication in refereed journal
SN - 0264-1275
VL - 30
SP - 3723
EP - 3730
JO - Materials and Design
JF - Materials and Design
IS - 9
ER -