Doctoral Dissertations
Abstract
"The cracking of low alloy Cr-Mo-V steels under cyclic stress at 1000-1100°C. was studied using a specially designed test apparatus. The results obtained from specimens plated with hard chromium are compared to those of unplated specimens. Tests conducted in gas mixtures of carbon monoxide and carbon dioxide showed that a high CO/CO2 ratio retards cracking in both plated and unplated specimens. Both external and internal oxidation are used to explain these results. Inherent microcracks in the hard chromium plating promoted cracking in all CO/CO2 environments. It was also found that these steels are severely embrittled in the presence of liquid copper."--Abstract, page iii.
Advisor(s)
O'Keefe, T. J. (Thomas J.)
Committee Member(s)
Weart, H. W. (Harry Waldron), 1927-
Frad, William A., 1909-1974
James, William Joseph
Moore, Robert E., 1930-2003
Department(s)
Materials Science and Engineering
Degree Name
Ph. D. in Metallurgical Engineering
Sponsor(s)
United States. Army Weapons Command
Publisher
University of Missouri--Rolla
Publication Date
1972
Pagination
ix, 59 pages
Note about bibliography
Includes bibliographical references (pages 44-46).
Rights
© 1972 Robert C. Tooke, All rights reserved.
Document Type
Dissertation - Open Access
File Type
text
Language
English
Subject Headings
Steel alloys -- FatigueSteel alloys -- Effect of high temperatures onMaterials at high temperaturesChromium-plating
Thesis Number
T 2812
Print OCLC #
6024886
Electronic OCLC #
904445327
Recommended Citation
Tooke, Robert C., "Effects of CR-plating and environment on the cracking of low alloy steels at high temperatures" (1972). Doctoral Dissertations. 230.
https://scholarsmine.mst.edu/doctoral_dissertations/230
Comments
This research was performed as a portion of contract DAAF0l-69C-054l administered by the Science and Technology Laboratory of the U. S. Army Weapons Command, Rock Island Arsenal, Rock Island, Illinois.