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Grain Refinement in Commercial Purity Titanium Sheets by Constrained Groove Pressing

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Abstract:

Grain refinement studies in titanium have gained significant interest owing to its importance as a biomaterial. Severe plastic deformation techniques have been widely applied for grain refinement in metals and are capable of producing ultra fine and nano sized microstructures. In this study, repetitive shear deformations by constrained groove pressing have been applied to commercial purity titanium sheets of 2 mm thickness at a warm working temperature of 300oC. Microstructure studies reveal the formation of elongated grains with widths of the order of 0.5μm from an initial grain size of 40μm in the annealed condition. An increase in strength is also observed.

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Periodical:

Materials Science Forum (Volume 683)

Pages:

233-242

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.683.233

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Online since:

May 2011

Authors:

G.V. Preetham Kumar, Ganesh G. Niranjan, Chakkingal Uday

Keywords:

Commercial Purity Titanium, Constrained Groove Pressing, Severe Plastic Deformation (SPD), Titanium

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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