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Effect of Grain Size on Microstructure and Orientation of Fe-25Mn-3Si-3Al Steel

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Abstract:

The typical Fe-25Mn-3Si-3Al TWIP steel with different microstructure scale were investigated. It was found When the grains size is up to 35μm in the 25Mn-3Si-3Al TWIP steel samples, the twinning induced plasticity (TWIP) effect can fully developed and results in above 80% elongation. grain size had a strong effect on the mechanical properties. It was concluded that with increasing grain size ultimate tensile strength decreases, while elongation increases obviously.The annealing twin has the twin’s orientation, during deformation the annealing twin has get orientation ready for deformation twins

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Periodical:

Advanced Materials Research (Volume 1095)

Pages:

107-110

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1095.107

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Online since:

March 2015

Authors:

Yong Juan Dai*, Jian Gang Wang, Hao En Mao, Zhen Li Mi, Chi Zhang

Keywords:

Annealing Twin, Microstructure Scale, Orientation, TWIP Effect

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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