Creep Deformation of Alloys 617 and 276 at 750-950 °C
Document Type
Article
Publication Date
9-15-2009
Publication Title
Materials Science and Engineering A
Volume
520
Issue
1-2
First page number:
184
Last page number:
188
Abstract
Alloys 617 and 276 were subjected to time-dependent deformation at elevated temperatures under sustained loading of different magnitudes. The results indicate that Alloy 617 did not exhibit strains exceeding 1 percent (%) in 1000 h at 750, 850 and 950 °C when loaded to 10% of its yield strength (YS) values at these temperatures. However, this alloy was not capable of sustaining higher stresses (0.25YS and 0.35YS) for 1000 h at 850 and 950 °C without excessive deformation. Interestingly, Alloy 617 showed insignificant steady-state creep rate at 750 °C irrespective of the applied stress levels. Alloy 276 almost met the maximum creep deformation criterion when tested at 51 MPa–750 °C. Severe creep deformation of both alloys at 950 °C could be attributed to the dissolution of carbides and intermetallic phases remaining after solution annealing or precipitated during quenching.
Keywords
Alloy 276; Alloy 617; Alloys – Creep; Creep mechanism; Deformations (Mechanics); Loads (Mechanics); Nickel alloys; Temperature and stress 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.,
Hasan, M. H.,
Pal, J.
(2009).
Creep Deformation of Alloys 617 and 276 at 750-950 °C.
Materials Science and Engineering A, 520(1-2),
184-188.