Phase Analysis for Mg-Zn-Y Magnesium Alloys by Using Extraction Technology
The structure, morphology and size distribution of phases in the Mg-Zn-Y magnesium alloys have very important effects on their mechanical properties. In this paper, the compound powders of Mg-Zn-Y phases were obtained from as cast and as aged Mg-6.0Zn-1.2Y and Mg-6.0Zn-0.6Zr-1.0Y magnesium alloys respectively by using of electrolysis extraction technology. Then several tests, such as X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersion X-ray detector (EDX), were performed to investigate the structure and morphology of these compound powders. The results proved that picric acid - acetic acid - ethanol electrolyte was useful than DDTC-CAS-carbinol electrolyte in the electron extraction for Mg-Zn-Y magnesium alloys. The XRD results showed that the Mg3Y2Zn3, Mg10Y2Zn, Mg3YZn6, Mg-Y-Zn quasicrystal phases were obtained from Mg-6.0Zn-1.2Y magnesium alloy, and Mg3Y2Zn3, Mg10Y2Zn, ZrO2 phases were obtained from Mg-6.0Zn-0.6Zr-1.0Y magnesium alloy. The analyses of morphology and size distribution of these phases were put forth in this paper.
Young Won Chang, Nack J. Kim and Chong Soo Lee
C. P. Liu et al., "Phase Analysis for Mg-Zn-Y Magnesium Alloys by Using Extraction Technology", Materials Science Forum, Vols. 561-565, pp. 299-302, 2007