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Damage micromechanics properties of bicrystalline ��-Fe metals with two-voids

Journal Article


Abstract


  • Molecular dynamics simulation has been performed to investigate micromechanics mechanism of two-voids at ���3<110>{111} and ���3<110>{121} grain boundaries (GBs) in bicrystalline ��-Fe metals. The results show that micromechanics behaviors are tailored by two-voids with different distances and GB types, and these lead to the disparately abnormal fracture characteristics. It is of interest to notice that there exists a strong attraction with ���3<110>{111}GB and voids, and that eventual fracture is on the GB plane; In contrast, considering more stable GB structure, ���3<110>{121}GB only occurs to migrate instead, and fracture process mainly be controlled by voids broken down into small vacancy clusters, which leads models to fracture consequently.

Publication Date


  • 2017

Citation


  • Wang, J., Huang, Y., Li, C., Yu, L., Li, H., & Liu, Y. (2017). Damage micromechanics properties of bicrystalline ��-Fe metals with two-voids. Physica B: Condensed Matter, 521, 275-280. doi:10.1016/j.physb.2017.07.012

Scopus Eid


  • 2-s2.0-85021861028

Start Page


  • 275

End Page


  • 280

Volume


  • 521

Issue


Place Of Publication


Abstract


  • Molecular dynamics simulation has been performed to investigate micromechanics mechanism of two-voids at ���3<110>{111} and ���3<110>{121} grain boundaries (GBs) in bicrystalline ��-Fe metals. The results show that micromechanics behaviors are tailored by two-voids with different distances and GB types, and these lead to the disparately abnormal fracture characteristics. It is of interest to notice that there exists a strong attraction with ���3<110>{111}GB and voids, and that eventual fracture is on the GB plane; In contrast, considering more stable GB structure, ���3<110>{121}GB only occurs to migrate instead, and fracture process mainly be controlled by voids broken down into small vacancy clusters, which leads models to fracture consequently.

Publication Date


  • 2017

Citation


  • Wang, J., Huang, Y., Li, C., Yu, L., Li, H., & Liu, Y. (2017). Damage micromechanics properties of bicrystalline ��-Fe metals with two-voids. Physica B: Condensed Matter, 521, 275-280. doi:10.1016/j.physb.2017.07.012

Scopus Eid


  • 2-s2.0-85021861028

Start Page


  • 275

End Page


  • 280

Volume


  • 521

Issue


Place Of Publication