450 °C Isothermal Section of the Al-V-Zn System

• Published in: Journal of phase equilibria and diffusion Vol. 33; no. 3; pp. 167 - 175
• Main Authors: Yin, Fucheng, Zheng, Sha, Wang, Xinming, li, Zhi, Zhao, Manxiu
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.06.2012; Springer Nature B.V
• Subjects: Basic and Applied Research; Ceramics; Composites; Crystallography and Scattering Methods; Engineering Thermodynamics; Glass; Heat and Mass Transfer; Metallic Materials; Natural Materials; Physics; Physics and Astronomy; Thermodynamics; Al-V-Zn system; phase diagram; T phase
• ISSN: 1547-7037; 1863-7345; 1934-7243
• DOI: 10.1007/s11669-012-0029-9

The 450 °C isothermal section of Al-V-Zn ternary system has been determined experimentally by means of optical microscopy, scanning electron microscopy coupled with energy-dispersive spectrometric, and x-ray diffraction. A new ternary compound named T, containing 8.2-9.9 at.% V, 12.1-27.4 at.% Zn, is positively identified for the first time in this study. The T phase only equilibrates with Al 3 V, α-Al, and L-Zn. Experimental results indicates that the maximal solubility of Al in VZn 3 is 25.2 at.%. The maximum solubility of Zn in α-V is 5.7 at.%. The Zn solubility in Al-V compounds (Al 8 V 5 , Al 3 V, Al 23 V 4 , Al 45 V 7 , and Al 21 V 2 ) is 10.6, 9.2, 1.2, 0.6, and 0.4 at.%, respectively. The maximum solubility of Al in V is 41.0 at.%. Nine three-phase regions have been confirmed experimentally in this ternary system.