Experimental investigation of the phase equilibria of Al-Zn-Ti system in Al-rich corner at 400°C

被引：2

作者：

Luo, Qun ^{[1
]}

Jin, Feng ^{[1
]}

Li, Yang ^{[1
]}

Li, Qian ^{[1
]}

Zhang, Jie-Yu ^{[1
]}

Chou, Kuo-Chih ^{[1
]}

机构：

[1] Shanghai Univ, Shanghai Key Lab Modern Met & Mat Proc, Shanghai 200072, Peoples R China

来源：

NEW MATERIALS, APPLICATIONS AND PROCESSES, PTS 1-3 | 2012年 / 399-401卷

关键词：

phase diagram; Al-Zn-Ti system; scanning electron microscopy; X-ray powder diffraction; MICROSTRUCTURE; TIAL3;

D O I：

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

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The phase equilibria in Al-rich corner of the Al-Zn-Ti ternary system at 400 degrees 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)+tau, Ti2Al5+tau+(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 degrees C. Furthermore, the ternary new phase (tau phase) was identified in samples and in equilibrium with (Al), Ti2Al5 and liquid, respectively.

引用

页码：2210 / 2214

页数：5

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