| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1569382 | Journal of Nuclear Materials | 2007 | 5 Pages |
Effects of heat treatment and irradiation on mechanical properties and microstructures have been studied for martensitic steel F82H co-doped with 60 ppm B and 200 ppm N (F82H + B + N) to evaluate fundamental mechanical properties and irradiation response before irradiation at JMTR and HFIR facilities. The specimens were firstly normalized at 1150 °C and tempered at 700 °C, secondly normalized at 1000 °C and tempered at 700, 750 and 780 °C. The tensile properties were measured for the specimens before irradiation. Single ion irradiations of 10.5 MeV Fe3+ and dual ion irradiations of 10.5 MeV Fe3+ with simultaneous 1.05 MeV He+ of 10 appmHe/dpa rate were performed at 160–590 °C to 20 dpa. Micro-hardness was measured before and after the irradiation. Tensile properties of the F82H + B + N were similar to F82H and also radiation hardening behaved similarly to F82H. The change of hardening increased with increasing temperature, saturated around 350 °C and decreased at higher temperature.
