A new titanium alloy with a combination of high strength, high strain hardening and improved ductility. (1st January 2015)

• Record Type: Journal Article
• Authors: Sun, F.; Zhang, J.Y.; Marteleur, M.; Brozek, C.; Rauch, E.F.; Veron, M.; Vermaut, P.; Jacques, P.J.; Prima, F.
• Is Part Of: Scripta materialia. Volume 94(2015)
• Page Start: 17
• Page End: 20
• Publication Date: 2015-01-01
• Subjects: Titanium alloys -- Twinning -- Martensitic phase transformation -- Deformation structure; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2014.09.005
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : A ternary β-metastable titanium Ti–9Mo–6W (wt.%) was designed. A very high work hardening rate close to 2100 MPa and a uniform deformation larger than 35% were recorded, thanks to combined transformation-induced plasticity and twinning-induced plasticity effects. In this paper, detailed microstructural analysis was performed to understand the deformation process. Various mechanisms, {3 3 2}〈1 1 3〉 mechanical twinning, stress-induced ω phase and stress-induced α″ martensite were identified after mechanical testing, resulting in a complex network of deformed microstructures with very special synergetic features.