Paper Title:
Mg-Y-Cu Bulk Metallic Glass Obtained by Mechanical Alloying and Powder Consolidation
  Abstract

Mg55Y15Cu30 metallic glass powders were prepared by the mechanical alloying of pure Mg, Y, and Cu after 10 h of milling. The thermal stability of these Mg55Y15Cu30 amorphous powders was investigated using the differential scanning calorimeter (DSC). Tg ,Tx , and Δ Tx are 442 K, 478 K, and 36 K, respectively. The as-milled Mg55Y15Cu30 powders were then consolidated by vacuum hot pressing into disk compacts with a diameter and thickness of 10 mm and 1 mm, respectively. This yielded bulk Mg55Y15Cu30 metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix. The pressure applied during consolidation can enhance thermal stability and prolong the existence of amorphous phase within Mg55Y15Cu30 powders.

  Info
Periodical
Materials Science Forum (Volumes 534-536)
Edited by
Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim
Pages
205-208
DOI
10.4028/www.scientific.net/MSF.534-536.205
Citation
P. Y. Lee, C. F. Hsu, C.C. Wang, "Mg-Y-Cu Bulk Metallic Glass Obtained by Mechanical Alloying and Powder Consolidation", Materials Science Forum, Vols. 534-536, pp. 205-208, 2007
Online since
January 2007
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$32.00
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