Crack-Growth Behavior of Alloy 230 Under Creep-Fatigue Conditions
Document Type
Article
Publication Date
7-15-2010
Publication Title
Materials Science and Engineering A
Volume
527
Issue
18-19
First page number:
4830
Last page number:
4836
Abstract
The effect of temperature and hold time on cracking susceptibility of Alloy 230 has been studied using precracked compact-tension specimens. The complex creep–fatigue loading interactions have been evaluated by imposing different hold times on a triangular waveform associated with cyclic loading under a constant stress-intensity-factor-range. The results indicate that the crack-growth-rate was significantly enhanced at higher temperatures even at very short hold times. The fracture morphology was changed from transgranular to predominantly intergranular due to the introduction of longer hold times and/or increasing temperature.
Keywords
Alloy 230; Alloys – Fatigue; Alloys – Fracture; Austenite; Crack-growth-rate; Fracture mechanics; Heat resistant alloys; Loads (Mechanics); Microscopy; Nickel alloys; Temperature and hold time effect
Disciplines
Materials Science and Engineering | Mechanical Engineering | Mechanics of Materials | Metallurgy | Nuclear Engineering
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
Roy, A. K.,
Chatterjee, S.,
Hasan, M. H.,
Pal, J.,
Ma, L.
(2010).
Crack-Growth Behavior of Alloy 230 Under Creep-Fatigue Conditions.
Materials Science and Engineering A, 527(18-19),
4830-4836.