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A high specific strength, deformation-processed scandium-titanium composite
Journal of Materials Research
  • Alan M. Russell, Iowa State University
  • Y. Tian, U.S. Steel Company
  • J. D. Rose, U.S. Steel Company
  • T. W. Ellis, Kulicke & Soffa Industries, Inc.
  • L. Scott Chumbley, Iowa State University
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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.

This article is from Journal of Materials Research 14 (1999): 8-11, doi: 10.1557/JMR.1999.0003. Posted with permission.

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Materials Research Society
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Alan M. Russell, Y. Tian, J. D. Rose, T. W. Ellis, et al.. "A high specific strength, deformation-processed scandium-titanium composite" Journal of Materials Research Vol. 14 Iss. 1 (1999) p. 8 - 11
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