Article ID Journal Published Year Pages File Type
1606895 Journal of Alloys and Compounds 2016 4 Pages PDF
Abstract

•After heat treatment, eutectic Mg2Si transforms to short fiber-like and spherical morphologies.•A great number of nano-sized β″ particles (<20 nm) are embedded in the Al matrix.•The evolution of microstructure gives rise to enhanced hardness and high tensile strength.

After solution treatment at 520 °C for 6 h and subsequent aging at 200 °C for 6 h, eutectic Mg2Si phase in Al–10%Mg2Si alloy transforms from long rod to short fiber-like and spherical morphologies, and a great number of nano-sized β″ particles precipitate in the Al matrix. The fine eutectic Mg2Si phase combined with nano-sized precipitates gives rise to enhanced hardness and high tensile strength of Al–10%Mg2Si alloy (increasing from 186 MPa to 234.6 MPa).

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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