Role of oxygen in stress-induced ω phase transformation and {3 3 2}〈1 1 3〉 mechanical twinning in βTi–20V alloy. (February 2015)

• Record Type: Journal Article
• Authors: Wang, X.L.; Li, L.; Xing, H.; Ou, P.; Sun, J.
• Is Part Of: Scripta materialia. Volume 96(2015)
• Page Start: 37
• Page End: 40
• Publication Date: 2015-02
• Subjects: β Ti alloys -- Stress-induced ω phase -- {3 3 2}〈1 1 3〉 mechanical twinning -- Mechanical properties; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2014.10.018
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : The Ti–20V wt.% alloy containing a low level of oxygen plastically deforms via stress-induced ω phase transformation, while the same alloy with a high level of oxygen deforms via {3 3 2}〈1 1 3〉 twinning. The high level of oxygen suppresses stress-induced ω phase transformation. The high-oxygen Ti–20V wt.% alloy has a much lower Young's modulus and high yield strength compared with the low-oxygen alloy. Oxygen plays a significant role in stress-induced ω phase transformation and {3 3 2}〈1 1 3〉 mechanical twinning, which governs the mechanical properties of βTi–20V wt.% alloys.