Abstract

The deformation behavior of a 10 mass%Cr-30 mass%Mn-0.1 mass%C austenitic steel was investigated over the temperature range from room temperature to 873 K after neutron irradiation in JMTR at 573 K to a fast neutron fluence of 8.5×10 22 n/m 2 (E>1 MeV). A high density of irradiation-produced dislocation loops with the size of about 5 nm and 10-30 nm was observed. Irradiation caused an increase in yield stress with a prominent yield point and a decrease in total elongation near room temperature. These behaviors became diminished with increasing test temperature

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