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contributor authorFong, Kai Soon
contributor authorAtsushi, Danno
contributor authorJen, Tan Ming
contributor authorChua, Beng Wah
date accessioned2017-05-09T01:20:30Z
date available2017-05-09T01:20:30Z
date issued2015
identifier issn1087-1357
identifier othermanu_137_05_051004.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/158724
description abstractProcessing of wrought magnesium alloy sheet by severe plastic deformation (SPD) for improving its formability is attractive so as to encourage the wider applications of the alloy. In this study, SPD by means of groove pressing (GP) was carried out on AZ31BO magnesium sheet at different deformation paths and temperatures in order to investigate its effects on microstructure, textures, and mechanical properties. GP using an orthogonal pressing at every cycle and at a progressively decreasing temperature was found to be effectively for manufacturing finegrained microstructures with an average grain diameter of 1.9 خ¼m. The final microstructures were homogenous in both the transverse direction (TD) and rolling direction (RD) and consisting of fine grains of 0.6–1 خ¼m with a small fraction of coarser grains of 3–5 خ¼m. The increase in yield stress (YS), ultimate tensile strength (UTS), and tensile elongation after annealing was 12%, −2.9%, and 25.6%, respectively, in the RD. A good balance between finegrained microstructure and ductility was obtained by the pressing at a constant processing temperature of 473 K. In this pressing path, average grain diameter was 3.8 خ¼m and the increased in YS, UTS, and tensile elongation before annealing was 21.9%, 9.1%, and 19.8%, respectively, in the RD. It was shown that the texture modification combined with finegrained microstructure contributed to the overall improvement in ductility.
publisherThe American Society of Mechanical Engineers (ASME)
titleEffect of Deformation and Temperature Paths in Severe Plastic Deformation Using Groove Pressing on Microstructure, Texture, and Mechanical Properties of AZ31 O
typeJournal Paper
journal volume137
journal issue5
journal titleJournal of Manufacturing Science and Engineering
identifier doi10.1115/1.4031021
journal fristpage51004
journal lastpage51004
identifier eissn1528-8935
treeJournal of Manufacturing Science and Engineering:;2015:;volume( 137 ):;issue: 005
contenttypeFulltext


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