Simple models to account for the formation and decomposition of athermal ω phase in titanium alloys. (May 2016)

• Record Type: Journal Article
• Authors: Lin, Cheng; Yin, Guili; Zhang, Aimin; Zhao, Yongqing; Li, Qingchun
• Is Part Of: Scripta materialia. Volume 117(2016)
• Page Start: 28
• Page End: 31
• Publication Date: 2016-05
• Subjects: Titanium alloys -- Phase transformations -- Modeling -- Metastable phases -- Valence electron structure; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2016.01.042
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: The models to account for the formation and decomposition mechanisms of athermal ω phase in titanium alloys are described. It is demonstrated that the athermal ω formation of titanium alloys is a result of the atom collapse from the (110) to (111) planes along the < 111 > direction in β phase. The model also suggests that the rigid atom clusters originated from athermal ω phase can be directly developed to the perfect α phase with the help of vacancies. Graphical abstract: