Nanostructure and related mechanical properties of an Al–Mg–Si alloy processed by severe plastic deformation

By G. Nurislamova, X. Sauvage, M. Murashkin, R. Islamgaliev, R. Valiev. 2008

142 citations recorded by the source corpus.

Microstructural features and mechanical properties of an Al–Mg–Si alloy processed by high-pressure torsion (HPT) have been investigated using transmission electron microscopy, X-ray diffraction, three-dimensional atom probe, tensile tests and micro-hardness measurements. It is shown that HPT processing of the Al–Mg–Si alloy leads to a much stronger grain size refinement than of pure aluminium (down to 100 nm). Moreover, massive segregation of alloying elements along grain boundaries is observed. This nanostructure exhibits a yield stress even two times higher than that after a standard T6 heat treatment of the coarse-grained alloy.

Subfields: Aerospace Engineering, Materials Chemistry, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/02654d895b9fb6242c1d43acde7543bfaeef57ed

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In Aerospace Engineering

In Materials Chemistry

In Mechanical Engineering

Citations in the corpus

Review on superior strength and enhanced ductility of metallic nanomaterials (2018, background): “Furthermore, concentration of alloying elements at GBs can be one order of magnitude larger than in grain interior [317,319,321].”
Nanostructural hierarchy increases the strength of aluminium alloys. (2010, background): “7 GPa represent the upper strength limit for precipitation-strengthened wrought Al alloy”