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Plasticity Analysis of Nano-Grain-Sized NiAl Alloy in an Atomic Scale |
| WANG Jing-Yang1,2;WANG Xiao-Wei1,2;J. Rifkin3;LI Dou-Xing1 |
| 1Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016
2International Centre for Materials Physics, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016
3Institute of Materials Science, University of Connecticut, USA
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| Cite this article: |
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WANG Jing-Yang, WANG Xiao-Wei, J. Rifkin et al 2002 Chin. Phys. Lett. 19 105-107 |
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Abstract The molecular dynamics method is used to simulate a uniaxial tensile deformation of 3.8 nm nano-NiAl alloy with curved amorphous-like interfaces at 0 K. Plastic deformation behaviour is studied by examining the strain-stress relationship and the microstructural evolution characteristic. Atomic level analysis has shown that the micro-strain is essentially heterogeneous in simulated nano-phase samples. The plastic deformation is not only attributed to the plasticity of interfaces, but also accompanied with the plastic shear strain mechanism inside lattice distortion regions and grains.
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| Keywords:
61.82.Rx
62.20.Fe
62.70.Ns
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Published: 01 January 2002
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