Please use this identifier to cite or link to this item:
Title: Effect of grain refinement on mechanical and corrosion behavior of AZ91 magnesium alloy processed by ECAE
Authors: Gajanan, M.N.
Narendranath, S.
Satheesh, Kumar, S.S.
Issue Date: 2019
Citation: IOP Conference Series: Materials Science and Engineering, 2019, Vol.591, 1, pp.-
Abstract: AZ91 Mg alloys were processed by equal channel angular extrusion (ECAE) up to 4 passes through route-R. The increase in number of ECAE passes to yield fine-grain structure in the bulk Mg alloy with a more dislocation density, this enhances mechanical properties and corrosion resistance. Indeed, microstructural observations revealed an equiaxed and significant grain refinement after ECAE-4P, with a mean grain size (d) of ? 4.36?m. Further, the tensile strength, micro-hardness and corrosion resistance were also increased, however the elongation was reduced with the increasing of ECAE passes. The electrochemical polarization test in 3.5wt % NaCl solution revealed a noticeable enhancement in the corrosion resistance of ECAE processed AZ91 Mg alloy compared with the as-received Mg alloy. This is mainly due to grain refinement and distribution of secondary phase particles in Mg alloy matrix during ECAE-4P. � 2019 Published under licence by IOP Publishing Ltd.
Appears in Collections:2. Conference Papers

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.