Effect of Cold Rolling on Metal Hydrides

Abstract

In this paper we review the recent studies of the effect of cold rolling on selected metal hydride systems. Magnesium is the most studied element in this perspective either as pure element, alloys, allied with iron or in a composite with AB₅ alloy alloys. Other systems will also be discussed such as titanium, AB₅ and AB₂ systems. After a critical review of these systems, we will discuss in detail the effect of cold rolling on Mg₂Ni alloy and shows that cold rolling is efficient to improve the first hydrogenation but has basically no impact of subsequent hydrogenation kinetics.

Fig. 5 First hydrogenation kinetics, at 350°C under 2000 kPa of hydrogen, of Mg₂Ni alloy in the as-received state and after cold rolling.