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Structural characterization of Cu50Zr50-xGdx metallic glasses (x = 5, 10, 15, 20, 25) using Scanning Electron Microscopy

I.-V. STASI1,2,* , C. GHEORGHIEŞ1, M.-I. URSU2,3

Affiliation

  1. Faculty of Mechanical Engineering, “Dunarea de Jos” University of Galati, Domneasca Street, No.47, 800008, Romania
  2. S.C. Automobile DACIA S.A.,DIMat-R, Mioveni, Arges,Uzinei Street, No.1-3, 115400, Romania
  3. Faculty of Mechanical Engineering, “Gheorghe Asachi” Technical University of Iaşi, Bd. Dimitrie Mangeron, No. 61-63, 700050, Romania

Abstract

There is reported on a new class of a binary alloy composition capable of forming bulk metallic glasses based on the Cu-Zr system. The ternary Cu50Zr50-xGdx alloys were prepared by Arc Melting of the pure elements to obtain the desired alloy composition. From Cu-Zr-Gd prealloys were prepared amorphous ribbons by Melt Spinning method. This work focuses on preparation of Cu50Zr50-xGdx alloys and their characterization using scanning electron microscopy technique. The influence of gadolinium additions on structural behaviour of Cu-Zr system was studied. The precipitated phases obtained by SEM are identified by XRD techniques. The addition of gadolinium changes the crystallization behaviour of studied metallic glasses..

Keywords

ternary Cu50Zr50-xGdx metallic glasses, Melt Spinning, SEM.

Submitted at: April 7, 2010
Accepted at: April 26, 2010

Citation

I.-V. STASI, C. GHEORGHIEŞ, M.-I. URSU, Structural characterization of Cu50Zr50-xGdx metallic glasses (x = 5, 10, 15, 20, 25) using Scanning Electron Microscopy, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 4, pp. 844-853 (2010)