Effect of double ion implantation and irradiation by Ar and He ions on nano-indentation hardness of metallic alloys

Swift heavy ion irradiation damage in Ti–6Al–4V and Ti–6Al–4V–1B: Study of the microstructure and mechanical properties

“…It seems that, at low temperature, the relative hardness for the samples irradiated with Ar at 36 MeV is less dependent upon the dpa dose level. We have included a comparison of our results to calculated relative hardness measurements from a study performed by Dayal et al [27] on Ti-6Al-4V samples irradiated at 25°C with successive Ar and He implantations at energies between 100 keV and 400 keV. The value of the hardness for room temperature Ar double implantation [27] agrees with the trend observed at low temperatures for our samples.…”

“…We have included a comparison of our results to calculated relative hardness measurements from a study performed by Dayal et al [27] on Ti-6Al-4V samples irradiated at 25°C with successive Ar and He implantations at energies between 100 keV and 400 keV. The value of the hardness for room temperature Ar double implantation [27] agrees with the trend observed at low temperatures for our samples. At a higher dose of $11.7 dpa, the hardening at low temperature was less than what was observed at high temperature for a much lower dose.…”

Influence of light ion irradiation of the oxide layer on the oxidation rate of Zircaloy-4

“…This assumption may explain only a part of the high burnup acceleration of the alloy. A second assumption assigned the accelerated corrosion to the amorphisation and the dissolution of the Zr(Fe,Cr) 2 precipitates under irradiation [2,[8][9][10][11][12]. Others authors suggest that the kinetic acceleration is due to the tin distribution in the alloy in service [13][14][15].…”

Effect of Xe26+ ion irradiation on the microstructural evolution and mechanical properties of Zr–1Nb at room and high temperature

“…For Zr-1Nb-1Sn-0.1Fe, the microstrain and dislocation density increase with irradiation dose. The defects induced by ion irradiation at room temperature serve as obstacles and are responsible for the increases in both the hardness [9] and activation energy [10].…”