Effect of sink strength on coherency loss of precipitates in dilute Cu- base alloys during in situ ion irradiation

L Wang and D Martin and WY Chen and PM Baldo and MM Li and BD Wirth and SJ Zinkle, ACTA MATERIALIA, 210, 116812 (2021).

DOI: 10.1016/j.actamat.2021.116812

In situ irradiations with 1 MeV Kr ions at 50 similar to 613 K up to a fluence of 6.25 x 10(14) ions/cm(2) (similar to 1.25 displacements per atom, dpa) have been performed on pre-aged dilute Cu-0.9%Co, Cu-0.9%Fe and Cu-0.8%Cr alloys containing uniform matrix dispersions of coherent precipitates in order to study the effects of initial precipitate sink strength, damage dose and irradiation temperature on radiation-induced coherency loss of precipitates. Coherent precipitates with different point defect sink strengths (2 pi Nd, where N and d are the precipitate density and diameter) were used in this work to examine potential differences in atomic relaxation during absorption of point defects. In all cases, irradiation to low doses (

Return to Publications page