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The formation and destruction of stacking fault tetrahedron in fcc metals: A molecular dynamics study

Journal Article


Abstract


  • Molecular dynamics simulations were conducted to study the formation and destruction of stacking fault tetrahedron (SFT) in fcc metals. The stacking fault energy, the size of vacancy cluster and temperature were found to play a significant role in the formation of a perfect SFT. Also, it was found that the compressive stress can unzip the perfect SFT to a truncated one, and can facilitate the destruction of SFT by transforming the faulted Frank loop to the unfaulted full dislocation loop. We provided the atomic details of how the unfaulting occurs using molecular dynamics method.

Publication Date


  • 2017

Citation


  • Zhang, L., Lu, C., Michal, G., Deng, G. & Tieu, K. (2017). The formation and destruction of stacking fault tetrahedron in fcc metals: A molecular dynamics study. Scripta Materialia, 136 78-82.

Scopus Eid


  • 2-s2.0-85018472578

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/240

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 78

End Page


  • 82

Volume


  • 136

Place Of Publication


  • United Kingdom

Abstract


  • Molecular dynamics simulations were conducted to study the formation and destruction of stacking fault tetrahedron (SFT) in fcc metals. The stacking fault energy, the size of vacancy cluster and temperature were found to play a significant role in the formation of a perfect SFT. Also, it was found that the compressive stress can unzip the perfect SFT to a truncated one, and can facilitate the destruction of SFT by transforming the faulted Frank loop to the unfaulted full dislocation loop. We provided the atomic details of how the unfaulting occurs using molecular dynamics method.

Publication Date


  • 2017

Citation


  • Zhang, L., Lu, C., Michal, G., Deng, G. & Tieu, K. (2017). The formation and destruction of stacking fault tetrahedron in fcc metals: A molecular dynamics study. Scripta Materialia, 136 78-82.

Scopus Eid


  • 2-s2.0-85018472578

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/240

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 78

End Page


  • 82

Volume


  • 136

Place Of Publication


  • United Kingdom