Positron annihilation in Zr-0·5 Nb alloy

Electromagnetic evaluation of hydrogen content in Zr 2.5%Nb alloy

R.Grimberg , M.L.Craus , A.Savin , R.Steigmann , M.Ruch 3 1 National Institute of Research and Development for Technical Physics, Iasi, Romania 2 Joint Institute for Nuclear Research, Dubna, Russia 3 CNEA, Buenos Aires, Argentina Abstract Zr 2.5%Nb alloys have wide utilization in nuclear energy engineering, being used at the fabrication of pressure tubes from Pressurized Heavy Water Reactors (P...

1 AP / P 5 - 05 Applications of Positron Annihilation Spectroscopy

Positron annihilation spectroscopy techniques are well established nuclear techniques with applications which nowadays range from structural investigations of materials to investigations of biological samples and medical imaging. They have extensively been used more than thirty years, but with constant improvements in measuring methods and with new applications, especially in investigations of ...

STRUCTURAL INTEGRITY CHANGES IN THE Zr-Nb ALLOY DURING HYDRIDE PHASE TRANSFORMATION UNDER THE THERMAL SHOCK

Structural changes and properties of zirconium alloy subjected to the thermal shock in the solar furnace were investigated. Specimens were prepared from unirradiated cold-worked RBMK Zr-2.5Nb fuel channel pressure tube material after adding hydrogen to the sections of the tubes up to 150 ppm. Tests were done at temperatures up to 1460 C and heating rates 50-83 C per second. After thermal treatm...

Load partitioning and evidence of deformation twinning in dual-phase fine-grained Zr–2.5%Nb alloy

Positron Annihilation Spectroscopy

Positron annihilation spectroscopy is nowadays well recognised as a powerful tool of microstructure investigations of condensed matter. An overview of the method aimed for users from other fields is given and supplemented with several examples of applications.