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AuthorMirjavadi, Seyed Sajad
AuthorAlipour, Mohammad
AuthorHamouda, A. M.S.
AuthorMatin, Abdolhamid
AuthorKord, S.
AuthorAfshari, Behzad Mohasel
AuthorKoppad, Praveennath G.
Available date2020-08-20T08:06:22Z
Publication Date2017
Publication NameJournal of Alloys and Compounds
ResourceScopus
ISSN9258388
URIhttp://dx.doi.org/10.1016/j.jallcom.2017.08.084
URIhttp://hdl.handle.net/10576/15719
AbstractIn this study, multi-pass friction stir processing using zirconia nanoparticles was performed on AA5083 sheets to fabricate surface nanocomposites. Effect of using different number of passes on the microstructure, microhardness, tensile and wear properties of the specimens was investigated. Therefore, it was found that iteration of FSP consistently improves tensile properties and microhardness of the materials. This was mainly related to microstructural modification through FSP, including better dispersion of powders, finer grain size and minimum clustered particles. EBSD and TEM analysis indicated a large number of high angle grain boundaries and occurrence of continuous dynamic recrystallization (CDRX) in the 8-pass FSP'ed nanocomposite. Wear test also showed that wear rate of the further processed specimens was distinctly lower than their counterparts. Moreover, fracture surface of the eight-pass processed material revealed ductile fracture consisting mostly of dimples and voids, similar to the base material. 2017 Elsevier B.V.
Languageen
PublisherElsevier Ltd
Subject5083 aluminum alloy
Fracture
Microstructure
Multi-pass FSP
Nanocomposite
Wear
TitleEffect of multi-pass friction stir processing on the microstructure, mechanical and wear properties of AA5083/ZrO2 nanocomposites
TypeArticle
Pagination1262-1273
Volume Number726
dc.accessType Abstract Only


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