DOI: 10.1063/1.106450. Gibbs free energy difference between the undercooled liquid and the β phase of a Ti-Cr alloy

Gibbs free energy difference between the undercooled liquid and the β phase of a Ti-Cr alloy

10.1063/1.106450

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

The heat of fusion and the specific heats of the solid and liquid have been experimentally determined for a Ti60Cr40 alloy. The data is used to evaluate the Gibbs free energy difference, ΔG, between the liquid and the β phase as a function of temperature to verify a reported spontaneous vitrification (SV) of the β phase in Ti-Cr alloys. The results show that SV of an undistorted β phase in the Ti60Cr40 alloy at 873 K is not feasible because ΔG is positive at the temperature. However, ΔG may become negative with additional excess free energy to the β phase in the form of defects.

Bibliography

Ohsaka, K., Trinh, E. H., Holzer, J. C., & Johnson, W. L. (1992). Gibbs free energy difference between the undercooled liquid and the Î² phase of a Ti-Cr alloy. Applied Physics Letters, 60(9), 1079â1081.

Authors 4

K. Ohsaka (first)
E. H. Trinh (additional)
J. C. Holzer (additional)
W. L. Johnson (additional)

References 16 Referenced 18

10.1103/PhysRevLett.54.2103 / Phys. Rev. Lett. (1985)
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10.1063/1.339140 / J. Appl. Phys. (1987)
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10.1016/0001-6160(86)90255-5 / Acta Met. (1986)
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10.1016/0022-5088(88)90393-1 / J. Less-Common Met. (1988)
10.1016/0921-4526(89)90043-4 / Physica B (1989)
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10.1021/cr60135a002 / Chem. Rev. (1948)
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10.1103/PhysRevB.40.12503 / Phys. Rev. B (1989)
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Dates

Type	When
Created	23 years ago (July 26, 2002, 9:36 a.m.)
Deposited	1 year, 6 months ago (Feb. 2, 2024, 10:42 p.m.)
Indexed	11 months, 4 weeks ago (Aug. 22, 2024, 10:03 a.m.)
Issued	33 years, 5 months ago (March 2, 1992)
Published	33 years, 5 months ago (March 2, 1992)
Published Print	33 years, 5 months ago (March 2, 1992)

Funders 0

None

BibTeX

@article{Ohsaka_1992, title={Gibbs free energy difference between the undercooled liquid and the β phase of a Ti-Cr alloy}, volume={60}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.106450}, DOI={10.1063/1.106450}, number={9}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Ohsaka, K. and Trinh, E. H. and Holzer, J. C. and Johnson, W. L.}, year={1992}, month=mar, pages={1079–1081} }

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