Effects of cold-rolling deformation on texture evolution and mechanical properties of Ti–29Nb–9Ta–10Zr alloy

• Published in: Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 586; pp. 1 - 10
• Main Authors: Cojocaru, V.D., Raducanu, D., Gloriant, T., Gordin, D.M., Cinca, I.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 01.12.2013; Elsevier
• Subjects: Applied sciences; Chemical engineering; Chemical Sciences; Cold deformation; Cross-disciplinary physics: materials science; rheology; Elasticity. Plasticity; Exact sciences and technology; Hardness; Materials science; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology; Metals. Metallurgy; Nanoindentation; Other heat and thermomechanical treatments; Physics; Texture evolution; Titanium alloys; Treatment of materials and its effects on microstructure and properties; X-ray diffraction; X-ray diffraction; Titanium alloys; Cold deformation; Nanoindentation; Texture evolution; Nanohardness; Elastic modulus; Vickers hardness; Mechanical properties; XRD; Fibers; Thickness; Cold rolling; Young modulus; Rolling texture; Alpha phase; Hardness testing; Size effect; Stress effects; Hardness indentation
• ISSN: 0921-5093; 1873-4936
• DOI: 10.1016/j.msea.2013.08.010

The crystallographic texture of Ti–29Nb–9Ta–10Zr alloy is studied after cold-rolling with different amounts of thickness reduction, up to 60%. The major texture components developed during cold-rolling were: γ-fibre components: {111}〈11¯0〉, {111}〈01¯1〉, {111}〈12¯1〉 and {111}〈1¯1¯2〉; texture component: {112}〈1¯1¯1〉 and texture components: {001}〈01¯0〉 and {010}〈001〉. Besides crystallographic texture the resulted mechanical properties were studied by nanoindentation. It was showed that the decrease in Young's modulus after different cold-rolling stages is mainly attributed to the stress-induced α″-Ti phase formation. At 60% cold-rolling thickness reduction obtained an elastic modulus close to 45.29±3.81GPa, coupled with an average Vickers microhardness close to 279.83±4.28HV.