Doctoral Dissertations

Author

Yar Ming Wang

Abstract

"The corrosion of In-Bi alloys was studied using X-ray, scanning electron microscopy, atomic absorption spectroscopy, and cyclic voltammetry techniques.

Calculated activation energy values indicated that the corrosion of In-Bi alloys was activation controlled. The effect of amine mixtures on the corrosion of In and In2Bi (ß1 phase) was studied. Morphological studies revealed that the porosity of the resulting physical surface structure was influential in determining the corrosion rate. In deaerated 3N HCl solutions, the selective dissolution of indium was the predominant mechanism in the corrosion of In-Bi alloys. The corrosion was always accompanied by a phase change on the surface and the corrosion rates of In-Bi alloys were found to increase in the presence of oxygen.

The corrosion potential values indicated that the corrosion of In-Bi alloys was cathodically controlled, and the occurrence of preferential or simultaneous dissolution in In-Bi alloys was also dependent on potential "--Abstract, page ii.

Advisor(s)

O'Keefe, T. J. (Thomas J.)

Committee Member(s)

Kisslinger, Fred, 1919-2010
James, William Joseph
Moore, Robert E., 1930-2003
Johnson, James W., 1930-2002

Department(s)

Materials Science and Engineering

Degree Name

Ph. D. in Metallurgical Engineering

Publisher

University of Missouri--Rolla

Publication Date

1975

Pagination

xi, 68 pages

Note about bibliography

Includes bibliographical references (pages 60-62).

Rights

© 1975 Yar Ming Wang, All rights reserved.

Document Type

Dissertation - Restricted Access

File Type

text

Language

English

Library of Congress Subject Headings

Indium alloys -- Corrosion
Bismuth alloys -- Corrosion
Indium alloys -- Metallurgy
Bismuth alloys -- Metallurgy

Thesis Number

T 3042

Print OCLC #

6013349

Electronic OCLC #

914342274

Link to Catalog Record

Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.

http://laurel.lso.missouri.edu/record=b1067242~S5

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