Investigation of hydrogen permeability through copper alloy CuCr1Zr0.1 andduplex structure Be-Cu.

Be-copper alloy duplex structures are planed to be used as the structural m aterial of the first wall for ITER. CuCr1Zr0.1 copper alloy is one of the p rospective components of such structures. To ensure safety and to solve eco logical problems concerning fusion reactor operation it is necessary to hav e estimations of tritium inventory in the copper alloy CuCr1Zr0.1 and in Be -copper alloy duplex structures. In this work the results of the following experiments on determination of h ydrogen permeation parameters are presented: Investigation of hydrogen permeation for beryllium-copper duplex structure. Experiments were carried out in the temperature range from 873 K to 1023 K , at input hydrogen pressures between 10(2) Pa and 10(3) Pa. Investigation of hydrogen permeation for copper alloy CuCr1Zr0.1 in the tem perature range from 723 K to 973 K, at input pressures of hydrogen between 10(2) and 10(3) Pa and for samples with different thickness.