Pressure Effect on Tc in Nb-Zr 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...

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...

Effect of electron count and chemical complexity in the Ta-Nb-Hf-Zr-Ti high-entropy alloy superconductor.

High-entropy alloys are made from random mixtures of principal elements on simple lattices, stabilized by a high mixing entropy. The recently discovered body-centered cubic (BCC) Ta-Nb-Hf-Zr-Ti high-entropy alloy superconductor appears to display properties of both simple crystalline intermetallics and amorphous materials; e.g., it has a well-defined superconducting transition along with an exc...

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

Influence of Interstitial Elements on Internal Friction Measurements in Nb and Nb-Zr Alloys

Internal friction and frequency measurements as a function of temperature have been carried out in Nb and Nb-Zr policrystalline samples, using a torsion pendulum in the temperature range between 300K and 700K, the heating rate was lWmin and the pressure was kept better than 5x10~~ mbar. Metals with bcc lattice containing solute atoms dissolved interstitially often show anelastic behaviour due t...