Stacking faults and the -surface on first-order pyramidal planes in -titanium. Issue 14 (13th May 2017)

• Record Type: Journal Article
• Authors: Ready, A. J.; Haynes, P. D.; Rugg, D.; Sutton, A. P.
• Is Part Of: Philosophical magazine. Volume 97:Issue 14(2017)
• Page Start: 1129
• Page End: 1143
• Publication Date: 2017-05-13
• Subjects: Titanium -- density functional theory -- stacking fault -- gamma-surface -- pyramidal -- hexagonal close-packed; Condensed matter -- Periodicals; Physics -- Periodicals; Matière condensée -- Périodiques; Physique -- Périodiques; 530.41
• DOI: 10.1080/14786435.2017.1292059
• Languages: English
• ISSNs: 1478-6435

Abstract

Abstract : Using first principles methods, we calculated the entire -surface of the first-order pyramidal planes in -titanium. Slip on these planes involving dislocations with -type Burgers vectors is one means by which -titanium polycrystals may supplement slip on prism planes with -type Burgers vectors to maintain ductility. We find one low energy and one high energy stacking fault with energies of 163 and 681 , respectively. Contrary to previous suggestions, we do not find a stable stable stacking fault at .