Development of Ni-Zr-Nb-Al-M(=Ta,Ti,Y) Metallic Glass
The effects of Ta, Ti and Y addition substituting Zr in the Ni-Zr-Nb-Al metallic glass alloys have been investigated by using thermal analysis, X-ray diffractometry and transmission electron microscopy. Partial replacements of Zr with M(=Ta, Ti, Y) in Ni61Zr28Nb7Al4 alloy significantly enhance the glass forming ability and enlarge the undercooled liquid region during continuous heating of glassy ribbons. Fully glassy rods with the diameter of up to 2 mm can be fabricated by a copper mold casting method.
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
J.H. Na et al., "Development of Ni-Zr-Nb-Al-M(=Ta,Ti,Y) Metallic Glass", Materials Science Forum, Vols. 475-479, pp. 3435-3438, 2005