Metallurgical and Corrosion Studies of Modified T91 Grade Steel
Document Type
Conference Proceeding
Publication Date
2006
Publication Title
Materials Research Society Symposium Proceedings
Publisher
Cambridge University Press
Volume
929
First page number:
149
Last page number:
154
Abstract
Modified 9Cr-1Mo steels containing different Silicon (Si) content have been tested for evaluation of their metallurgical and corrosion properties. The results of tensile testing indicated reduced failure strain up to 400°C followed by its enhancement at a higher temperature. Stress corrosion cracking tests at constant load did not show any failure in any materials. However, reduced ductility and true failure stress were noted in slow strain rate (SSR) testing, indicating increased cracking susceptibility at elevated temperatures. The corrosion potential became more active with increasing temperature in polarization studies. A combination of intergranular and cleavage failures was observed in specimens tested by the SSR technique.
Keywords
Chromium-molybdenum steel; Chromium-molybdenum steel – Fatigue; Chromium-molybdenum steel – Stress corrosion; Corrosion; Scanning electron microscopy (SEM); Silicon; Steel alloys; Strains and stresses; Transmission electron microscopy (TEM)
Disciplines
Materials Science and Engineering | Mechanical Engineering | Mechanics of Materials | Metallurgy
Language
English
Permissions
Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.
Repository Citation
Kumar, P.,
Maitra, D.,
Roy, A. K.
(2006).
Metallurgical and Corrosion Studies of Modified T91 Grade Steel.
Materials Research Society Symposium Proceedings, 929
149-154.
Cambridge University Press.