Synthesis of Ti21.5V40Cr38.5 alloy by abnormal glow discharge plasma

•Ti21.5V40Cr38.5 alloy was synthesized by melting in abnormal glow discharge plasma.•The maximum sorption capacity of Ti21.5V40Cr38.5 alloy was 3 wt%•The cycling stability of Ti21.5V40Cr38.5 was observed after 3 cycles. The paper describes the structural-phase state and sorption characteristics of the Ti21.5V40Cr38.5 alloy synthesized by melting in abnormal glow discharge plasma and arc melting. X-ray diffraction patterns showed the presence of the main TiVCr phase with a body-centered cubic (bcc) lattice and Ti2O phase with a hexagonal close packed (hcp) lattice. The maximum hydrogen capacity of the samples obtained by melting in abnormal glow discharge plasma after 3 cycles was 3 wt%.