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Microhardness and lattice parameter calibrations of the oxygen solid solutions of unalloyed alpha-titanium and Ti-6Al-2Sn-4Zr-2MoStandards were prepared for calibrating microanalyses of dissolved oxygen in unalloyed alpha-Ti and Ti-6Al-2Sn-4Zr-2Mo. Foils of both of these materials were homogenized for 120 hours in vacuum at 871 C following short exposures to the ambient atmosphere at 854 C that had partially oxidized the foils. The variation of Knoop microhardness with oxygen content was calibrated for both materials using 15-g and 5-g indentor loads. The unit-cell lattice parameters were calibrated for the unalloyed alpha-Ti. Example analyses demonstrate the usefulness of these calibrations and support an explanation of an anomaly in the lattice parameter variation. The results of the calibrations have been tabulated and summarized using predictive equations.
Document ID
19870064022
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Wiedemann, K. E.
(Analytical Services and Materials, Inc. Hampton, VA, United States)
Shenoy, R. N.
(Analytical Services and Materials, Inc. Hampton, VA, United States)
Unnam, J.
(Analytical Services and Materials, Inc. Hampton, VA, United States)
Date Acquired
August 13, 2013
Publication Date
August 1, 1987
Publication Information
Publication: Metallurgical Transactions A - Physical Metallurgy and Materials Science
Volume: 18A
ISSN: 0360-2133
Subject Category
Metallic Materials
Accession Number
87A51296
Distribution Limits
Public
Copyright
Other

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