Al-Sc Alaşımlarında Elastik Anizotropi Basınç Değişiminin İncelenmesi

Authors : Hamza Yaşar OCAK, Gencer SARIOĞLU, Salih AKBUDAK, Gökay UĞUR, Şule UĞUR

Pages : 251-258

Doi:10.31202/ecjse.476577

View : 20 | Download : 12

Publication Date : 2019-05-31

Article Type : Research Paper

Abstract :To calculate the anisotropy of Al-Sc alloys under high pressure, the second order elastic constants were obtained from the density functional theorem insert ignore into journalissuearticles values(DFT); using the EMTO module. The elastic constants of the Al-1.1Sc and Al-1.9Sc alloys in cubic, fcc, structure were examined depending on the pressure. The elastic constants of both alloys vary greatly depending on the applied pressure. Elastic constants obtained due to pressure, center elastic anisotropy insert ignore into journalissuearticles values(A); were used to calculate defined anisotropy insert ignore into journalissuearticles values(A CNNF ); parameters for the closest neighboring interactions. Anisotropy parameters changed according to both Sc rate and pressure and the pressure was closer to each other for increasing values. What makes this work special is the detailed examination of anisotropy in Al-Sc alloys for the first time depending on the pressure.
Keywords : Al Sc, Elastic Constant, Elastic Anisotropy, Pressure