Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5456451 | Materials Science and Engineering: A | 2017 | 5 Pages |
Abstract
A partial solution treatment was investigated to enhance the mechanical properties for a die-cast Al-Mg-Zn-Si alloy. The strengthening mechanism was identified that the Mg32(Al, Zn)49 intermetallics and equilibrium η-MgZn2 phase formed in the as-cast microstructure were partially dissolved into the α-Al matrix during solutionising and the fine semi-coherent η'-MgZn2 phase was precipitated during subsequent aging. Consequently, the unique microstructure was characterised by the co-existence of equilibrium η-MgZn2 phase and metastable η'-MgZn2 phase in the α-Al matrix, together with the un-changed Mg2Si eutectic and remnant Mg32(Al, Zn)49 intermetallics in the Al-Mg-Zn-Si alloy.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Wenchao Yang, Lin Liu, Jun Zhang, Shouxun Ji,