A novel Ti–6Al–4V alloy microstructure with very high strength and good ductility. (October 2015)

• Record Type: Journal Article
• Authors: Jia, M.T.; Zhang, D.L.; Gabbitas, B.; Liang, J.M.; Kong, C.
• Is Part Of: Scripta materialia. Volume 107(2015)
• Page Start: 10
• Page End: 13
• Publication Date: 2015-10
• Subjects: Titanium alloy -- Heat treatment -- Microstructure -- Mechanical properties; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.05.008
• Languages: English
• ISSNs: 1359-6462

Abstract

Graphical abstract: Abstract : This paper reports a novel microstructure consisting of fine and oxygen hardened equiaxed α grains and fine equiaxed transformed β grains hardened by nanometer sized α aciculars, formed by solution treatment, quenching and aging of a Ti–6Al–4V (wt.%) alloy with a relatively high oxygen content of 0.52 wt.%, and produced by powder compact forging. The microstructure renders the alloy with a very high tensile yield strength of 1352.4 MPa, ultimate tensile strength of 1421.7 MPa and elongation to fracture of 7.2%.