TY - JOUR
T1 - Improvement of mechanical properties of AA6063 aluminum alloy after equal channel angular pressing by applying a two-stage solution treatment
AU - Ashrafizadeh, S.M.
AU - Eivani, Ali Reza
AU - Jafarian, H.R.
AU - Zhou, Jie
N1 - Accepted Author Manuscript
PY - 2017
Y1 - 2017
N2 - A two-stage solution treatment composed of an initial soaking at 420 °C for 10 min and the second soaking at 500 °C for 10 min was applied to cold-worked AA6063 aluminum alloy samples after equal channel angular pressing (ECAP) for two and four passes. The microstructures and mechanical properties of the samples were compared with those of the samples after a routine one-stage solution treatment at 500 °C for 10 min. Abnormal grain growth (AGG) occurred to the samples during the one-stage solution treatment. However, no AGG was observed in the samples after the two-stage solution treatment. As a result of the prevention of AGG from occurring, the hardness, yield strength and ultimate tensile strength of the alloy after the two-stage solution treatment were significantly increased, while elongation to failure remained almost unchanged.
AB - A two-stage solution treatment composed of an initial soaking at 420 °C for 10 min and the second soaking at 500 °C for 10 min was applied to cold-worked AA6063 aluminum alloy samples after equal channel angular pressing (ECAP) for two and four passes. The microstructures and mechanical properties of the samples were compared with those of the samples after a routine one-stage solution treatment at 500 °C for 10 min. Abnormal grain growth (AGG) occurred to the samples during the one-stage solution treatment. However, no AGG was observed in the samples after the two-stage solution treatment. As a result of the prevention of AGG from occurring, the hardness, yield strength and ultimate tensile strength of the alloy after the two-stage solution treatment were significantly increased, while elongation to failure remained almost unchanged.
KW - Aluminum
KW - Equal channel angular pressing
KW - Grain growth
KW - Heat treatment
KW - Mechanical property
UR - http://resolver.tudelft.nl/uuid:6087254d-1d16-4136-8cc9-f66b2367f368
UR - http://www.scopus.com/inward/record.url?scp=85010188998&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2017.01.024
DO - 10.1016/j.msea.2017.01.024
M3 - Article
SN - 0921-5093
VL - 687
SP - 54
EP - 62
JO - Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing
JF - Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing
ER -