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Mechanical Behaviors of Ultrafine Grained Metallic Materials

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Abstract:

Ultrafine grained materials fabricated by severe plastic deformation exhibit both superior and inferior mechanical properties, as the prominent structural materials, compared to coarse grained counterparts. The superior mechanical properties are ultrahigh strength and exceptional ductility at high temperatures (i.e., superplasticity). The inferior mechanical properties are lack of strain hardenability and room temperature ductility. In this study, the relationship between microstructure and mechanical properties of ultrafine grained materials fabricated by severe plastic deformation is investigated in order to provide insight broadening their future applicability.

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Periodical:

Solid State Phenomena (Volumes 124-126)

Pages:

1325-1328

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.124-126.1325

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Online since:

June 2007

Authors:

Dong Hyuk Shin, Duck Young Hwang, Jung Yong Ahn, Kyung Tae Park, Yong Suk Kim, J.J. Park

Keywords:

Al-Mg Alloy, Equal-Channel Angular Pressing (ECAP), Steel, Superplasticity, Ultrafine Grained

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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