The best glass-forming compositions in Al-Co(or Ni)-Y ternary systems

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Yingmin Wang
  • Jianbing Qiang
  • Chuang Dong
  • Shujie Pang
  • Tao Zhang

Detail(s)

Original languageEnglish
Pages (from-to)167-170
Journal / PublicationJournal of Alloys and Compounds
Volume434-435
Issue numberSPEC. ISS.
Publication statusPublished - 31 May 2007

Abstract

The present work aims at the investigation of the largest glass-forming abilities in the Al-Co(or Ni)-Y ternary systems. In the reduced isothermal sections of their ternary phase diagrams, the e/a-based composition line passes through three known phases, Al50Co(or Ni)50, Al33Co(or Ni)33Y33 and α-Y. The atomic cluster-based criterion was incarnated into the Co(or Ni)3Y7-Al composition line. The crossing of the two composition lines gives the composition of Al23Co(or Ni)23Y54. The critical diameters for a full glassy state are 4 mm and 3 mm for the Ni-bearing and Co-bearing alloys, respectively. Thermal analysis indicates that the compositions are not eutectic points. The characteristic thermodynamic parameters are Tg = 645 K, Tx = 694 K and Tg/Tm = 0.64 for Al23Ni23Y54 and Tg = 648 K, Tx = 681 K and Tg/Tm = 0.63 for Al23Co23Y54. © 2006 Elsevier B.V. All rights reserved.

Research Area(s)

  • Metallic glass, Thermal analysis, X-ray diffraction

Citation Format(s)

The best glass-forming compositions in Al-Co(or Ni)-Y ternary systems. / Wang, Yingmin; Shek, Chan Hung; Qiang, Jianbing; Dong, Chuang; Pang, Shujie; Zhang, Tao.

In: Journal of Alloys and Compounds, Vol. 434-435, No. SPEC. ISS., 31.05.2007, p. 167-170.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal