SYMPOSIA PAPER Published: 01 January 1973
STP35472S

Effects of Irradiation on the Tensile and Structural Properties of FV548 Stainless Steel

Source

The tensile properties of the columbium-stabilized austenitic steel FV548 have been investigated after irradiation in a thermal reactor up to fluences of 4 · 1020 n/cm2 (thermal) and in a fast reactor up to fluences of 2.7 · 1022 n/cm2 (total).

The parameters that have been studied include the effects of irradiation temperature, covering the temperature range 550 to 750 C (1022 to 1382 F); the effects of solute level produced by increasing the solution heat-treatment temperature from 950 to 1300 C (1742 to 2372 F); and the effects of pre- and postirradiation aging. Testing has been carried out over the strain-rate range 5 · 10−4 to 5 · 10−6 per second and at temperatures between 550 and 750 C (1022 and 1382 F). The microstructures obtained during irradiation have also been investigated and the results correlated with the tensile properties. Suggested mechanisms for the effects observed are discussed.

Author Information

Watkin, JS
United Kingdom Atomic Energy Authority, The Reactor Group, Reactor Fuel Element Labs., Preston, England
Shepherd, JP
Southall Technical College, London, England
Standring, J
United Kingdom Atomic Energy Authority, The Reactor Group, Reactor Fuel Element Labs., Preston, England
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Details
Developed by Committee: E10
Pages: 509–528
DOI: 10.1520/STP35472S
ISBN-EB: 978-0-8031-4627-3
ISBN-13: 978-0-8031-0328-3