SYMPOSIA PAPER Published: 01 January 1999
STP13908S

Effect of Radiation-Induced Segregation on Precipitate Stability and Swelling in Irradiated Alloys

Source

The radiation-induced segregation of alloy components near point defect sinks with a particular attention to Fe-Cr-Ni based alloys is analyzed. The influence of point defect generation rate on temperature ranges of stability for radiation-retarded M23C6 and radiation-induced Ni3Si precipitates in austenitic stainless steels is considered. A method of calculation of steady-state segregation-induced bias in irradiated binary alloys, taking into account Kirkendall forces and drift forces caused by point defect migration and formation energy gradients near sinks, is proposed. Contributions of various forces to the bias in Fe-Cr-Ni and V-Fe alloys are evaluated. The effect of void-precipitate association on swelling is analyzed. The radiation-induced segregation of components and segregation-induced bias for motionless and moving grain boundaries in a Fe-Cr-Ni alloy are calculated by solving the set of coupled diffusion equations for component and point defect concentrations.

Author Information

Pechenkin, VA
State Scientific Center of Russian Federation, Institute of Physics & Power Engineering, Obninsk, Kaluga region, Russia
Epov, GA
State Scientific Center of Russian Federation, Institute of Physics & Power Engineering, Obninsk, Kaluga region, Russia
Stepanov, IA
State Scientific Center of Russian Federation, Institute of Physics & Power Engineering, Obninsk, Kaluga region, Russia
Konobeev, YV
State Scientific Center of Russian Federation, Institute of Physics & Power Engineering, Obninsk, Kaluga region, Russia
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: 850–865
DOI: 10.1520/STP13908S
ISBN-EB: 978-0-8031-5395-0
ISBN-13: 978-0-8031-2614-5