ZrVxFe（2-x） non-evaporable vacuum getter materials with different V contents

such as 0.2

0.3

0.4

0.5

were fabricated by the non-consumable vacuum arc melting process.The microstructure of the ZrVxFe（2-x） prepared was investigated by SEM（scanning electron microscope）

EDS（energy dispersive spectrometer） and XRD（X-ray diffraction） analysis.The results show that the alloy is composed of ZrFe2（V） and ZrV2（Fe）.In the solidification process

Zr phase is precipitate firstly

and then ZrFe2（V） and ZrV2（Fe） are nucleate and precipitate s.With the increase of V content in the alloys

the ZrFe2（V） phase is decreased

while the ZrV2（Fe） phase is increased.