The origins for tensile properties of selective laser melted aluminium alloy A357
作者： Jeremy H. Rao , Yong Zhang , Xiya Fang , Yu Chen , Xinhua Wu
DOI: 10.1016/J.ADDMA.2017.08.007
关键词:
摘要: In this work the tensile behaviour of selective laser melted (SLMed) aluminium alloy A357 in the as-fabricated and heat-treated states is explained using scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), transmission electron microscopy (TEM), and transmission electron backscatter diffraction (t-EBSD). The as-built sample has an ultrafine microstructure, with high residual stresses and non-equilibrium solid solute concentration of Si in the supersaturated Al matrix. Consequently, the tensile properties of the SLMed Al alloy …
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