Determination of effect of hydrogen on strength of aluminum by MD simulation
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Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer Heidelberg
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The determination of types of defects that may be present in aluminum alloys has been a long-going discussion. Porosity has been held responsible for many of the failures in cast aluminum alloys. Due to the dramatic decrease in the solubility of hydrogen from liquid to solid aluminum, hydrogen is believed to be released from the solidification front and nucleate to form porosity. In this work, the diffusivity of hydrogen at different temperatures were investigated by means of Molecular Dynamic (MD) simulations. Dislocation density, crystal lattice deformation, and related changes in the tensile properties were determined in the presence of hydrogen for mono and nanocrystalline aluminum structures. The findings were correlated with the experimental and simulation data found in the literature where different tensile results were reported at different casting conditions.
Açıklama
Anahtar Kelimeler
Molecular dynamic, Hydrogen effect, Dislocation density, Grain effect, Diffusion
Kaynak
Applied Physics A-Materials Science & Processing
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
128
Sayı
9
