SYMPOSIA PAPER Published: 01 January 1987
STP25637S

Cessation of Irradiation Creep in AISI 316 Concurrent with High Levels of Swelling

Source

At high neutron exposures where the swelling of AISI 316 exceeds ∼5% the irradiation creep rate at 550°C begins to decline and eventually disappear. Swelling continues to proceed, however, leading to a maximum deformation rate dictated only by that of the steady-state swelling rate or ∼0.33%/displacements per atom (dpa). It is not clear at this point whether large levels of voidage are directly responsible for the decrease in creep rate. There is some evidence to support the possible role of intermetallic precipitate formation, although the mechanism of creep suppression by such precipitates is not known.

Author Information

Porter, DL
Argonne National Laboratory, EBR-II Project, Idaho Falls, ID
Garner, FA
Hanford Engineering Development Laboratory, Richland, WA
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: E10
Pages: 11–21
DOI: 10.1520/STP25637S
ISBN-EB: 978-0-8031-5017-1
ISBN-13: 978-0-8031-0963-6