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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 937Analysis of the Grain Refinement Mechanism for...

Analysis of the Grain Refinement Mechanism for Commercial Pure Titanium by ECAP and SMAT

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Abstract:

Equal Channel Angular Pressing (ECAP) and Surface Mechanical Attrition (SMAT) are the two Severe Plastic Deformation (SPD) processes that have been used to process ultrafine grained (UFG) materials. These two kinds of processes have been used to refine the grain size of coarse-grained commercial pure titanium (CP-Ti). The development of microstructure during equal channel angular pressing (ECAP) and surface mechanical attrition (SMAT) of commercial pure titanium (CP-Ti) is investigated to establish the mechanisms of grain refinement. Based on the various experimental results and analysis, it has been found that the high-strain-rate and many direction loading is conducive to the formation of nanograins and also the grains with less than 100 nm cannot be obtained by the single equal channel angular pressing (ECAP).

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Periodical:

Advanced Materials Research (Volume 937)

Pages:

162-167

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.937.162

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Online since:

May 2014

Authors:

Xiao Mei He, Shan Shan Zhu*, Cong Hui Zhang

Keywords:

Commercial Pure Titanium (CP-Ti), Equal-Channel Angular Pressing (ECAP), Grain Refinement Mechanism, Surface Mechanical Attrition Treatment (SMAT)

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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