You are here

A molecular dynamics study of the nucleus interface structure and orientation relationships during the austenite-to-ferrite transformation in pure Fe

TitleA molecular dynamics study of the nucleus interface structure and orientation relationships during the austenite-to-ferrite transformation in pure Fe
Publication TypeJournal Article
Year of Publication2018
AuthorsSong, H, Hoyt, JJ
JournalCanadian Metallurgical Quarterly
Volume57
Pagination12-19
Type of ArticleArticle
ISBN Number0008-4433
Accession NumberWOS:000429209100003
Keywordsalloys, barrier-free, disconnection, fcc-bcc interfaces, gamma-iron, grain-boundaries, heterogeneous nucleation, ledges, Metallurgical Engineering, mobility, neighbour vector analysis, nucleation, phase boundaries, shape, simulation, Solid-state transformation
Abstract

Molecular dynamics simulations using an embedded-atom method potential for pure iron (Fe) were performed to investigate the solid-state transformation of a body-centred-cubic phase from a polycrystalline face-centred-cubic matrix. A Kurdjumov-Sachs orientation relationship accompanied with a step-ledge disconnection structure was detected in high mobility phase boundaries of a full 3D classical and barrier-free nucleation specimen. The results imply that interface coherency is an important factor for both nucleation and growth processes, which may significantly affect the transition rate of the austenite-ferrite transformation.

DOI10.1080/00084433.2017.1361183
Custom 1

Not AL