Park, Jihye Shim, Jae-Hyeok Lee, Young-Kook 2024-01-20T05:04:13Z 2024-01-20T05:04:13Z 2021-09-03 2016-01 1598-9623 https://pubs.kist.re.kr/handle/201004/124550 Molecular dynamics simulations of the glide of an edge dislocation in the bcc matrix of Fe-V alloys were performed to investigate the room-temperature solid solution softening by V atoms. For this purpose, the glide velocity of an edge dislocation was calculated as a function of V concentration under the shear stresses of 100-300 MPa using the Fe-V cross-potential constructed newly in the present study. Whereas the solid solution hardening occurred as the V concentration is less than 0.13 at% or more than 0.5 at%, the room-temperature solid solution softening was observed in Fe-(0.13-0.5) at% V alloys. The solid solution softening occurring in Fe-(0.13-0.5) at% V alloys was caused by the accelerated growth velocity of kinks by solute V atoms. The increase in kink velocity happened when the interatomic distance between solute V atoms was similar to the length of dislocation kinks. English KOREAN INST METALS MATERIALS EDGE DISLOCATION DEFORMATION ELEMENTS Room-Temperature Solid Solution Softening in Fe-V Binary System Article 10.1007/s12540-015-5114-2 1 METALS AND MATERIALS INTERNATIONAL, v.22, no.1, pp.7 - 11 METALS AND MATERIALS INTERNATIONAL 22 1 7 11 scie scopus kci 000367700700002 2-s2.0-84953636837 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article EDGE DISLOCATION DEFORMATION ELEMENTS computer simulation dislocation alloys solid solution softening molecular dynamics