A Resistmetric Study of the Precipitation of Hydrides in Unalloyed and Alloyed Zirconium

Abstract

The quench aging of Zr H and Zircaloy-H alloys has been studied by the resistmetric technique. A two-stage preThis metastable phase in thought to be the cluster of hydrogen atoms.

Role of grain/phase boundary nature on the formation of hydrides in Zr–2.5%Nb alloy

“…However, most of these observations are valid in case of hydride precipitation in the single phase Zr alloys such as Zircaloy-2 and Zircaloy-4 [4][5][6][7][8][9][10][11][12]. Some limited studies have shown that the a/b interfaces act as preferential sites for the precipitation of the hydrides in case of two phase Zr alloys such as Zr-2.5%Nb alloy [13][14][15].…”