Campus Units

Ames Laboratory, Materials Science and Engineering

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

2015

Journal or Book Title

Modelling and Simulation in Materials Science and Engineering

Volume

23

Issue

5

First Page

055003

DOI

10.1088/0965-0393/23/5/055003

Abstract

Starting from a semi-empirical potential designed for Cu, we have developed a series of potentials that provide essentially constant values of all significant (calculated) materials properties except for the intrinsic stacking fault energy, which varies over a range that encompasses the lowest and highest values observed in nature. These potentials were employed in molecular dynamics (MD) simulations to investigate how stacking fault energy affects the mechanical behavior of nanotwinned face-centered cubic (FCC) materials. The results indicate that properties such as yield strength and microstructural stability do not vary systematically with stacking fault energy, but rather fall into two distinct regimes corresponding to ‘low’ and ‘high’ stacking fault energies.

Comments

This article is published as Borovikov, Valery, Mikhail I. Mendelev, Alexander H. King, and Richard LeSar. "Effect of stacking fault energy on mechanism of plastic deformation in nanotwinned FCC metals." Modelling and Simulation in Materials Science and Engineering 23, no. 5 (2015): 055003. 10.1088/0965-0393/23/5/055003. Posted with permission.

Copyright Owner

IOP Publishing Ltd.

Language

en

File Format

application/pdf

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