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作者:

Liu, R. (Liu, R..) | Huang, H. (Huang, H..) (学者:黄晖) | Liu, J. (Liu, J..) | Wang, W. (Wang, W..) (学者:王伟) | Rong, L. (Rong, L..) (学者:戎路) | Nie, Z. (Nie, Z..)

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摘要:

Plasticity zone at crack tip of aluminum alloy with fcc structure is investigated in order to analyze the effect of crystal orientation to the plasticity distribution on crack tip, as well as the effect to CTOD and J-integral, which is implemented using finite element code in Abaqus with a rate dependent crystal plasticity theory. The results show that the crack tip plasticity, stresses and CTOD are significantly affected by grain orientations. When the grains have single textures, Cube and S orientations have a strong ability to against crack propagation. However, when the grains combine textures, the increasing of misorientation enhances the resistance for crack growth. And when the tilt angle is higher, the crack deflection is promoted to reduce the crack propagation rate. © 2016 Trans Tech Publications, Switzerland.

关键词:

Crystal orientation; CTOD; J-integral; Plastic zone

作者机构:

  • [ 1 ] [Liu, R.]College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing, 100022, China
  • [ 2 ] [Huang, H.]College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing, 100022, China
  • [ 3 ] [Liu, J.]College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing, 100022, China
  • [ 4 ] [Wang, W.]College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing, 100022, China
  • [ 5 ] [Rong, L.]College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing, 100022, China
  • [ 6 ] [Nie, Z.]College of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing, 100022, China

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来源 :

Materials Science Forum

ISSN: 0255-5476

年份: 2016

卷: 850

页码: 328-333

语种: 英文

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SCOPUS被引频次: 1

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