Hydrogen Permeation Behavior in Pure Nickel Ion-Implanted with Pt, As, Pb and Sb Elements

摘要

The entry and transport of hydrogen in platinum-, arsenic-, lead- and antimony-implanted pure nickel specimens with a fluence range of 1 x 10~(15) to 1x 10~(17) ions/cm~2 have been investigated using an electrochemical permeation technique and a removal method of implanted layers to elucidate the chemical effect of implanted elements themselves and the physical effect causing through the process of ion implantation on hydrogen permeation behavior. It is found that As and Pt elements have the chemical effect on hydrogen permeation, whereas the other implanted elements show no chemical effect. The hydrogen permeation behavior of all the implanted specimens is influenced by the physical effect. Furthermore, the results obtained are discussed in more details in terms of the physical and chemical effects including catalytic effect, phase structure and so on.