A high specific strength, deformation-processed scandium-titanium composite

Author:

Russell A. M.,Tian Y.,Rose J. D.,Ellis T. W.,Chumbley L. S.

Abstract

A 59% Sc–41% Ti deformation-processed metal-metal composite was produced by rolling to a true strain of 2.3 at 873 K followed by cold rolling to a total true strain of 3.6. Rolling reduced the original eutectoid microstructure to lamellae of α–Sc and α–Ti with average lamellar thicknesses of 150 nm (Sc) and 120 nm (Ti). The cold-rolled material had an ultimate tensile strength of 942 MPa and a specific strength of 259 J/g. The Sc matrix was oriented with the 〈0001〉 tilted 22° from the sheet normal direction toward the rolling direction, an unusual texture for an HCP metal with a low c/a ratio, which suggests Sc may deform primarily by basal slip.

Publisher

Springer Science and Business Media LLC

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

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1. Neutron diffraction, specific heat and magnetization studies on Nd2CuTiO6;AIP Conference Proceedings;2016

2. Magnetic and Dielectric Properties of R 2CuTiO6 Compounds (R=Y, La, Pr and Nd);Journal of Superconductivity and Novel Magnetism;2011-01-27

3. Extension Of Solid Solubility In Binary Ti-Sc System;Materials Technology;2004-01

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