Metallurgical and Materials Transactions A

, Volume 32, Issue 12, pp 2969–2974

Liquid titanium solute diffusion measured by pulsed ion-beam melting

  • P. G. Sanders
  • M. O. Thompson
  • T. J. Renk
  • M. J. Aziz
Article

DOI: 10.1007/s11661-001-0171-1

Cite this article as:
Sanders, P.G., Thompson, M.O., Renk, T.J. et al. Metall and Mat Trans A (2001) 32: 2969. doi:10.1007/s11661-001-0171-1

Abstract

The diffusivities of Sn, Mo, Zr, and Hf in liquid Ti were determined by pulsed ion-beam melting of thin liquid layers. Time-resolved optical reflectance and one-dimensional heat-flow simulations were employed to determine the melt duration. The broadening of nearly Gaussian solute concentration-depth profiles was determined ex situ using Rutherford backscattering spectrometry. Solute diffusivities in the range of 5 to 9×10−5 cm2/s were determined at temperatures in the range of 2200 to 2500 K. Calculations of buoyancy and Marangoni convection indicate that convective contamination is unlikely.

Copyright information

© ASM International & TMS-The Minerals, Metals and Materials Society 2001

Authors and Affiliations

  • P. G. Sanders
    • 1
  • M. O. Thompson
    • 2
  • T. J. Renk
    • 3
  • M. J. Aziz
    • 4
  1. 1.Ford Research LaboratoryFord Motor CompanyDearbom
  2. 2.the Materials Science and Engineering DepartmentCornell UniversityIthaca
  3. 3.the Beam Applications and InitiativesSandia National LaboratoriesAlbuquerque
  4. 4.the Division of Engineering and Applied SciencesHarvard UniversityCambridge

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