Transformation of precipitated phases in Zr50·5Cu34·5−xNi4Al11Agx alloy master ingots with adding Ag

• DOI: 10.1179/1743284710y.0000000006
• Publication Date: 2012-10-30T15:40:32Z
• Authors: S T Deng; P F Yan; H F Zhang; A M Wang; Z Q Hu
• Keywords: 02 engineering and technology; 0210 nano-technology

The transformation of precipitated phases Zr 50·5 Cu 34·5−x Ni 4 Al 11 Ag x alloy master ingots with substitution was studied in detail by phase analysis. (Zr–Cu) rich deteriorate the glass forming ability (GFA) 34·5 . Two new phases, A1 bcc structure and a = 0·339 nm A2 fcc superlattice 1·21 nm, were identified transmission electron microscope. When 2, disappears, remains is suppressed gradually further addition. 13, one more than 13 at- begins to GFA. In view chemistry, precipitation means that interaction between atoms rather drastic. addition weakens Zr. similar competition mechanism proposed authors plays an important role suppressing improving GFAs.