Research on Superplasticity of Supplied 5A06 Aluminium Alloy Sheet

Publisher: Trans Tech Publications

E-ISSN: 1662-9752|2016|838|127-131

ISSN: 0255-5476

Source: Materials Science Forum, Vol.2016, Iss.838, 2016-02, pp. : 127-131

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Abstract

Superplasticity of supplied 5A06 aluminum alloy is reviewed in this paper. Supplied 5A06 aluminum alloy is researched on superplasticity by the methods of same strain rate high temperature uniaxial tensile tests at temperature range375°C-500°Cand strain rate range 2.5×10-4s-1~1.0×10-2s-1. Microstructure and fracture of tensile samples are analyzed and discussed, deduce that grain boundary sliding (GBS) is the predominant deformation mechanism. Superplastic formability of the alloy is evaluated by gas bulging test at elevated temperatures. Gas bulging test demonstrates the deformation process parameters for the best superplastic formability is 400°Cand 0.005s-1 ,suggesting good application prospect for this aluminum alloy.