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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 827Molecular Dynamics Simulation of TRIP Steel...

Molecular Dynamics Simulation of TRIP Steel Residual Austenite Stacking Fault Development

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Abstract:

TRIP (Transformation induced plasticity) steel has a good combination of high strength and high plasticity which depend on the micro phase transformation and staking fault development greatly. C atom was typical alloying agent of austenite and plays an important role in austenite behavior, especially for staking fault nucleation. As a micro materials behavior, molecular dynamics simulation was carried out to discuss the effect of C atom on the staking fault nucleation. From the simulation result we can find that carbon influence the staking fault nucleation greatly, with the increasing of the number of C atoms, strain for staking fault form decreased, system with 4 C atoms staking fault formed when strain was 7.5% and for system without C atoms there are no staking fault with local tension strain up to 10%. Under the same deformation, stacking fault distribution was uniform for the system with 1 carbon and become uneven with the increasing of the C atom.

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Periodical:

Advanced Materials Research (Volume 827)

Pages:

8-11

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.827.8

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Online since:

October 2013

Authors:

H.Y. Li, X.C. Li, J.H. Li, J.L. Ma, Y.J. Zhang

Keywords:

Molecular Dynamic (MD), Residual Austenite, Stacking Fault, TRIP Steel

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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