SYMPOSIA PAPER Published: 01 January 1990
STP49462S

Residual Tensile Properties at Low and High Strain Rates of AISI 316H Predamaged by Creep, Low Cycle Fatigue, and Irradiation to 2 dpa

Residual mechanical properties have been determined in tension at low (∼0.0035 s−1), medium (∼10 s−1), and high strain rates (∼1000 s−1), at 550°C, of American Iron and Steel Institute (AISI) 316H having previously been subjected to increasing degrees of damage by creep, low cycle fatigue, low cycle fatigue, and irradiation to 2 dpa. Strength increase and ductility reduction with respect to the as-received material have been observed. Strain rate hardening characterizes the response to dynamic loading in case of single damaging processes, while the superposition of low cycle fatigue and irradiation caused strain rate softening. Instabilities of the deformation process, shown by the flow curves, govern the phenomena.

Author Information

Albertini, Carlo
Ispra Establishment, Ispra, Va, Italy
Iida, Kunihiro
University of Tokyo, Tokyo, Japan
Grande, Angelo, Del
Ispra Establishment, Ispra, Va, Italy
Forlani, Mario
Ispra Establishment, Ispra, Va, Italy
Pachera, Alberto
Ispra Establishment, Ispra, Va, Italy
Montagnani, Mario
Ispra Establishment, Ispra, Va, Italy
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Details
Developed by Committee: E10
Pages: 387–403
DOI: 10.1520/STP49462S
ISBN-EB: 978-0-8031-8887-7
ISBN-13: 978-0-8031-1266-7