| Plasticity Analysis of Nano—Grain—Sized NiAl Alloy in an Atomic Scale |
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| 作者姓名： | 王京阳 J.Rifkin 等 |
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| 作者单位： | [1]ShenyangNationalLaboratoryforMaterialsScience,InstituteofMetalResearch,ChineseAcademyofSciences,Shenyang110016 [2]InstituteofMaterialsScience,UniversityofConnecticut,USA |
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| 摘 要： | 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 strainstress relationship and the microstructural evolution characteristics.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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| 关 键 词： | NiAl合金 原子尺寸 塑性分析 |
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