Mechanism of Creep Deformation of Alloy 230 Based on Microstructural Analyses
Document Type
Article
Publication Date
11-15-2010
Publication Title
Materials Science and Engineering: A
Volume
527
Issue
29-30
First page number:
7883
Last page number:
7900
Abstract
Creep testing of Alloy 230 was performed at 750, 850 and 950 °C under applied stresses equivalent to its 10% and 25% yield strength (YS) values. The results indicate that this alloy satisfied the maximum allowable creep strain of 1% when loaded to 0.10YS level at these temperatures. Microscopic evaluations revealed the formation of second phase particles including superstructures and carbide precipitates as a function of temperature. The enhanced plastic strain at 0.25YS stress level at 950 °C was attributed to dislocation glide, subgrain formation, and recrystallization.
Keywords
Alloy 230; Creep mechanism; Deformations (Mechanics); Heat resistant alloys; Heat resistant alloys – Creep; Heat resistant alloys – Microstructure; Microscopy; Molybdenum; Nickel-chromium alloys; Temperature and stress effect; Thermal stresses; Tungsten
Disciplines
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
Chatterjee, S.,
Roy, A. K.
(2010).
Mechanism of Creep Deformation of Alloy 230 Based on Microstructural Analyses.
Materials Science and Engineering: A, 527(29-30),
7883-7900.
