Paper Title:
Preparation and Microstructure of Nanocomposite Mg-3Al-Zn Alloy by HDDR Combined with Ball Milling
  Abstract

Nanocrystallite Mg-3Al-Zn alloy was synthesized by ball milling of elemental powders of Mg, Al and Zn under hydrogen atmosphere. The powders of Mg, Al and Zn were mechanical alloying and disproportionated by ball milling under hydrogen and desorption-recombination was then performed. The structural changes due to both the milling in hydrogen and the subsequent desorption-recombination treatment were characterized by X-ray diffraction (XRD). The desorption–recombination behavior of the hydrogenation alloy was investigated by differential scanning calorimetry (DSC). The morphology and microstructure of the final alloy powders subject to desorption–recombination treatment were observed by TEM and HRTEM, respectively. The results showed that, by milling in hydrogen for 60 h, the Mg-3Al-Zn alloy was disproportionated into nano-structured with average size of about 60-70 nm, and a subsequent desorption–recombination treatment at 320°C for 30 min alloy didn’t vary the average crystallite size of powders.

  Info
Periodical
Advanced Materials Research (Volumes 264-265)
Edited by
M.S.J. Hashmi, S. Mridha and S. Naher
Pages
496-501
DOI
10.4028/www.scientific.net/AMR.264-265.496
Citation
H. F. Sun, W. Fang, Z. X. Yu, W. B. Fang, "Preparation and Microstructure of Nanocomposite Mg-3Al-Zn Alloy by HDDR Combined with Ball Milling", Advanced Materials Research, Vols. 264-265, pp. 496-501, 2011
Online since
June 2011
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$32.00
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