Characterization of Ti–Zr–Mn–V-based Laves phase alloys for MH refrigeration system

High-pressure hydrogenation properties of Ti–V–Mn alloy for hybrid hydrogen storage vessel

“…Shudo et al have revealed that the precipitation of the Ti rich FCC phase with dendritic morphology in a Ti-Mn-V-Fe alloy affected the sloping plateau and the hysterisis [18]. As shown in the present result, the hydrogen capacity of this alloy did not saturate under 35 MPa H 2 which is reported working pressure of a hybrid hydrogen storage vessel.…”

Relationship between microstructure and hydrogenation properties of Ti0.85Zr0.15Mn1.5V0.5 alloy

“…Recrystallization of the milled alloy yields homogeneous C-14 phase. This is consistent with the results of Chuang et al [18] and Shudo et al [13] who report that chemically homogeneous AB 2 -type alloys are obtained using rapid solidification techniques. Fast cooling rates allow quenching of the chemically homogeneous liquid phase.…”

“…These peaks belong to the Zr 3 V 3 O-type structure (S.G. Fd3m). The occurrence of this phase in V-substituting Zr(Mn, V) 2 alloys has already been observed by several authors [11][12][13]. The Zr 3 V 3 O x phase is stabilized by oxygen in the Zr-V system with minimum and maximum content of 0.6 ≤ x ≤ 1.0, respectively [14].…”

A new metastable crystalline phase in the Cr–Zr system

“…Quite commonly, as-cast and annealed multicomponent alloys [13,14], such as Zr 1Àx Ti x (Mn 1Ày V y ) 2 based on the TiMn 2 Laves phases, show particles with metallic atomic composition ((Zr 0.5 Ti 0.5 ) 3 (Mn 0.5 V 0.5 ) 3 ) close to equiatomic composition. Detailed chemical analysis in those particles has shown that they are stabilised by oxygen provided in the alloying process.…”

“…Stabilisation of this phase is linked to the presence of a continuous solid solution of Cr in Ti at high temperatures. On the other hand, such a continuous solid solution is absent in the Zr-Cr system, therefore a different mechanism of alloy formation should be invoked in our case.Quite commonly, as-cast and annealed multicomponent alloys [13,14], such as Zr 1Àx Ti x (Mn 1Ày V y ) 2 based on the TiMn 2 Laves phases, show particles with metallic atomic composition ((Zr 0.5 Ti 0.5 ) 3 (Mn 0.5 V 0.5 ) 3 ) close to equiatomic composition. Detailed chemical analysis in those particles has shown that they are stabilised by oxygen provided in the alloying process.…”