Doctoral Dissertations

Abstract

"The disaccommodation technique was used to determine the activation volume of carbon diffusion, ΔV, in six fcc iron-nickel alloys. Measurements were made at temperatures ranging from 68ºC to 90ºC and pressures up to six kilobars on samples having a nickel content between 31 and 63 at. %. A maximum activation volume of 3.9 cm³/mole was found at 34 at. % nickel. The compositional dependence of ΔV is satisfactorily reproduced by a magnetic energy continuum model in which it is assumed that the activation free energy of diffusion is essentially ferromagnetic in origin "--Abstract, page iii.

Advisor(s)

Wuttig, Manfred

Committee Member(s)

Moore, Robert E., 1930-2003
Tefft, Wayne E., 1929-1973
Clark, J. B. (J. Beverley)
Weart, H. W. (Harry Waldron), 1927-

Department(s)

Materials Science and Engineering

Degree Name

Ph. D. in Metallurgical Engineering

Sponsor(s)

University of Missouri--Rolla. Department of Metallurgical Engineering

Publisher

University of Missouri--Rolla

Publication Date

1971

Pagination

vii, 36 pages

Note about bibliography

Includes bibliographical references (pages 15-16).

Rights

© 1971 James Raymond Keiser, All rights reserved.

Document Type

Dissertation - Open Access

File Type

text

Language

English

Subject Headings

Iron-nickel alloys
Transition metal alloys -- Magnetic properties
Case hardening
Magnetic permeability
Ferromagnetic materials

Thesis Number

T 2429

Print OCLC #

6024865

Electronic OCLC #

858942306

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Metallurgy Commons

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