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dc.contributor.authorNaik, G.M.
dc.contributor.authorNarendranath, S.
dc.contributor.authorSatheesh, Kumar, S.S.
dc.contributor.authorSahu, S.
dc.date.accessioned2020-03-31T08:22:55Z-
dc.date.available2020-03-31T08:22:55Z-
dc.date.issued2019
dc.identifier.citationJOM, 2019, Vol.71, 12, pp.4758-4768en_US
dc.identifier.urihttp://idr.nitk.ac.in/jspui/handle/123456789/10696-
dc.description.abstractIn order to study the influence of plastic deformation, annealing and aging treatment on pitting corrosion, the AZ80Mg alloy was subjected to equal-channel angular pressing (ECAP) by route R at 325 C for up to 4 ECAP passes (P) and annealing conditions of 523 K, 623 K and 723 K followed by aging treatment at 6 h and 12 h. A microhardness and corrosion study was accomplished and microstructural evolution was recorded using optical microscopy (OM), scanning electron microscopy and electron backscatter diffraction (EBSD). OM and EBSD analysis showed that a fine-grain microstructure with average grain sizes of 32.87 m and 6.35 m was achieved after 2P and 4P of ECAP, respectively. During annealing and aging treatment, the fine-grain Mg alloy revealed that the maximum microhardness and improved corrosion resistance were observed mainly due to redistribution of ?-secondary phases. Specifically, 12 h aged specimens at 523 K represented maximum microhardnesses of about 85 Hv and 87 Hv for ECAP-2P and -4P, respectively. Also, 12 h aging at 723 K appeared preferable for accomplishing enhanced corrosion properties. 2019, The Minerals, Metals & Materials Society.en_US
dc.titleEffect of Annealing and Aging Treatment on Pitting Corrosion Resistance of Fine-Grained Mg-8%Al-0.5%Zn Alloyen_US
dc.typeArticleen_US
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