Effect of Orientation Relationships on the Stiffness and the Strength of the Dual-Phase Metals: Molecular Dynamics Simulation

Abstract:

Article Preview

Phase boundary is an important kind of interfaces for the dual-phase metals. Orientation relationship (OR) is a crucial factor affecting the performance of the phase boundaries and the dual-phase metals. Molecular dynamics simulation is performed to examine the structures of the bcc/fcc iron phase boundaries in Nishiyama–Wassermann (N–W) and Kurdjumov–Sachs (K–S) orientation relationships, and the performances of the dual-phase model with these ORs. The structural relaxation shows that the phase boundary with N-W relation has the lower energy than that in K-S relation. Stress-strain curves show that dual-phase model in N-W relation has the higher stiffness and strength than that in K-S relation. Simulation results show that phase boundary in N-W relation has a more exellent performance, and is preferred to be processed in heat treatment.

Info:

Periodical:

Advanced Materials Research (Volumes 479-481)

Edited by:

Wenzhe Chen, Pinqiang Dai, Yonglu Chen, Qianting Wang and Zhengyi Jiang

Pages:

601-604

Citation:

Y. Zhang et al., "Effect of Orientation Relationships on the Stiffness and the Strength of the Dual-Phase Metals: Molecular Dynamics Simulation", Advanced Materials Research, Vols. 479-481, pp. 601-604, 2012

Online since:

February 2012

Export:

Price:

$41.00

[1] Y. Cheng, M. Mrovec and P. Gumbsch: Mater. Sci. Eng. A Vol. 483-484 (2008), p.329.

[2] C. Holzapfel, W. Schaf, M. Marx, et al: Scripta Mater. Vol. 56 (2007), p.697.

[3] H. Landheer, S. E. Offerman, R.H. Petrov and L.A.I. Kestens: Mater. Sci. Forum Vol. 558-559 (2007), pp.1413-1418.

[4] Y.C. Liang, J.X. Chen, M.J. Chen, et al: Comput. Mater. Sci. Vol. 43 (2008), p.1130.

[5] H. Beladi, Y. Adachi, I. Timokhina and P.D. Hodgson: Scripta Mater. Vol. 60 (2009), p.455.

[6] M.W. Finnis and J.E. Sinclair: Philo. Mag. A Vol. 50 (1984), p.45.

[7] M.I. Mendelev, S. Han, D.J. Srolovitz, G.J. Ackland, D.Y. Sun and M. Asta: Philo. Mag. Vol. 83 (2003), p.3977.