Characterization of defect clusters in ion-irradiated A533B steel

Hardening and microstructural evolution in A533B steels under high-dose electron irradiation

“…This suggested that such loops might be formed, acting as hardening source in electron-irradiated commercial steels. Although quantitative data of interstitial components as matrix damage are quite scarce due to technical difficulty to identify them [40], such experimental efforts are needed to fully understand the cascade effects on hardening and embrittlement in commercial steels.…”

Effects of stress on radiation hardening and microstructural evolution in A533B steel

“…The yield strength at 290°C is 570 MPa. In the previous studies, it was confirmed that well-defined solute clusters and dislocation loops form in this material under neutron, electron, and heavy-ion irradiations in unstressed condition [15][16][17][18][19].…”

“…Observations were carried out using a TEM (Hitachi HF-3000) equipped with a field emission gun of 300 kV. Analysis of radiation induced defects was carried out at a depth of 600 nm in the specimens using a weak-beam technique; details of this had been described in previously [17].…”

Effects of dose rate change under irradiation on hardening and microstructural evolution in A533B steel

“…Observations were carried out using a TEM (Hitachi HF-3000) equipped with a field emission gun of 300 kV. Analysis of radiation-induced defects was carried out at a depth of 300 nm in the specimens using a weak-beam technique; details have been described in the previous study [4].…”

“…More experimental data obtained by well-controlled irradiation at a specific dose rate and temperature are needed to understand the effects of dose rate change during irradiation on the microstructure change. Ion irradiation experiments are one of the best methods for carrying out a well-controlled irradiation, and they have been applied to the investigation of radiation embrittlement in previous studies [4][5][6].…”