The 430°C isothermal section of the Al–4Mg–Sc–Zr quaternary system in the Al-rich range
DOI: 10.1016/S0925-8388(03)00393-1
Title: The 430°C isothermal section of the Al–4Mg–Sc–Zr quaternary system in the Al-rich range
Journal Title: Journal of Alloys and Compounds
Volume: 363
Publication Date: 28 January 2004
Start Page: 175
End Page: 181
Published online: online 20 November 2003
ISSN: 0925-8388
Author: Fanhao Zeng, Changqing Xia, Yi Gu
Affiliations:
  • Department of Materials Science, Central South University of Technology, Changsha, Hunan 410083, PR China
  • Abstract: #xA0;°C isothermal section of the Al–4Mg–Sc–Zr quaternary system in the Al-rich range has been determined by means of equilibrium alloys with the use of microstructural, X-ray diffraction analysis, and electron probe microanalysis. There coexist three single-phase fields, two two-phase fields and one three-phase field. It is established that the Al3Sc1−0.5Zr0−0.5 phase with L12 structure and Al3Zr1−0.8Sc0−0.2 with DO23 structure are in equilibrium with the α-solid solution, Zr being dissolved in Al3Sc, further substituting for about 50 at.% Sc whilst Sc is present in the phase Al3Zr and the maximum substitution for Zr is about 20 at.% Zr.
    Accepted: 4 November 2002
    Received: 13 July 2002
    Revised: 4 November 2002
    Keywords: Alloys; Phase diagram; Microstructure; SEM; X-Ray diffraction
    Tel: +86-731-8876692.Copyright ©
    Email: gro@mail.csu.edu.cn

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