Experimental Investigation of the Phase Equilibria of Al-Zn-Ti System in Al-Rich Corner at 400 °C

Qun Luo; Feng Jin; Yang Li; Qian Li; Jie Yu Zhang; Kuo Chih Chou

doi:10.4028/www.scientific.net/AMR.399-401.2210

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 399-401Experimental Investigation of the Phase Equilibria...

Experimental Investigation of the Phase Equilibria of Al-Zn-Ti System in Al-Rich Corner at 400 °C

Abstract:

The phase equilibria in Al-rich corner of the Al-Zn-Ti ternary system at 400 °C were determined by means of optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray spectrometer (EDS) and X-ray powder diffraction (XRD). The results showed that this section consisted of three ternary-phase regions, namely, L+(Al)+τ, Ti₂Al₅+τ+(Al) and Ti₂Al₅+TiAl₃+(Al). The XRD patterns and EDS confirmed that a Ti₂Al₅-structured phase with containing 4 at.% Zn was stable at 400 °C. Furthermore, the ternary new phase (τ phase) was identified in samples and in equilibrium with (Al), Ti₂Al₅ and liquid, respectively.

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Advanced Materials Research (Volumes 399-401)

Pages:

2210-2214

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.399-401.2210

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Online since:

November 2011

Authors:

Qun Luo, Feng Jin, Yang Li, Qian Li, Jie Yu Zhang, Kuo Chih Chou

Keywords:

Al-Zn-Ti System, Phase Diagram, Scanning Electron Microscope (SEM), X-Ray Powder Diffraction

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