Hydrogen Storage Properties of Ti$_{15.4}$Zr$_{30.2}$Mn$_{44}$V$_{5.4}$Сr$_5$ Alloy Produced by Induction and Arc Melting

Abstract

On the example of the alloy Ti 15.4 Zr 30.2 Mn 44 V 5.4 Сr 5 , the technological scheme of producing massive ingots by the technique of induction melting in open Al 2 O 3 crucibles, which can be used in industry, is developed. This scheme ensures the absence of significant interaction between the crucible material and the melt, while maintaining the allowable content of aluminium impurities in the alloy, and thus achieving the required structure, phase composition, and hydrogen storage properties.

Hydrogen-Sorption Properties of the Alloy Ti$_{15.5}$Zr$_{30}$Mn$_{38}$V$_{5.5}$Cr$_{5.5}$Co$_{5.5}$ Based on the Laves Phase (Type $C$14)

“…[31] considered alloys, which had a stoichiometric composition of AB2, while, in this investigation, an alloy with a non-stoichiometric composition of AB1.2 was considered. Based on the determined chemical composition of Laves phase crystals for the investigated Ti15.5Zr30Mn38V5.5Cr5.5Co5.5 alloy and literature data [32,40], it can be stated that the area of homogeneity Laves phase (type C14) cannot be expanded below 44 at.% Mn, with this manufacturing method alloy, fails.…”

“…Titanium sponge (TG-110), iodide Zr (99.975), electrolytic Mn (99.9), electrolytic V (99.5), electrolytic Cr (99.5) and electrolytic Co (99.5) were used as starting components. To obtain the alloy, a previously developed technological scheme was used, which is described in detail in the paper [32]. It should be noted that during the preparation of the charge additional were added, 4% wt.…”