Table of Contents
Indian Journal of Materials Science
Volume 2014 (2014), Article ID 353698, 6 pages
http://dx.doi.org/10.1155/2014/353698
Research Article

Microstructure Properties of Rapidly Solidified Al-Zn-Mg-Cu Alloys

1Solid State Physics Department, National Research Center, Dokki, Giza 12311, Egypt
2Physics Department, Faculty of Science, Taif University, P.O. Box 888, Taif 21974, Saudi Arabia

Received 12 December 2013; Accepted 18 January 2014; Published 2 March 2014

Academic Editors: U. De, A. K. Meikap, and K. Sahoo

Copyright © 2014 Emad M. Ahmed. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The Rietveld X-ray diffraction analysis was applied to analyze the weight fraction of precipitation phases and microstructure characterizations of rapidly solidified Al-8Zn-4Mg- Cu, = 1, 4, 8, and 10 alloys (in wt.%), prepared by melt spun technique. A good agreement between observed and calculated diffraction pattern was obtained and the conventional Rietveld factors ( , , and GOF) converged to satisfactory values. Solid solubilities of Zn, Mg, and Cu in α-Al were extended to high values. Besides, metastable Al0.71Zn0.29, intermetallic Al2CuMg, Al2Cu, and CuMgZn phases have been observed for = 4, 8, and 10 Cu alloys. The crystal structure and microstructure characterizations exhibit strong Cu content dependence.