Mechanism of crack propagation under creep circumstances on the AlSiMgCuFe alloy through molecular dynamics study

Abstract

The existence of notch or crack leads to impact the material behavior of any material, owed to the formation of discontinuity on the surface. In this study, the creep performance of AlSiMgCuFe alloy has been examined using molecular dynamics package under various creep conditions along with the existence of notch (crack) and un-notch (without crack) conditions and found that the notch existence has invoked larger impact on the creep performance of aluminum-silicon alloys tailed by the temperature and pressure (applied), due to the incidence of severe diffusion performance amidst the atoms. Further, it is quantified that the surge in the displacement and shear strain performance as a outcome of creep distortion time under various creep circumstances shows a vigorous part on the creep behavior and the pair correlation function and mean square displacement behavior has confirmed the similar performance which leads to modify its creep life.