Paper Title:
Grain Refinement of AZ91D Magnesium Alloy by In Situ Al4C3 Particles
  Abstract

Experiments were conducted to fabricate the Al4C3 particles by powder in-situ synthesis process under argon atmosphere and examine the grain refinement of AZ91D magnesium alloy with the addition of 0.6%Al4C3(hereafter in mass fraction,%). By means of X-ray diffraction (XRD), scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDS), the results show the successful fabrication of Al4C3 particles. After adding 0.6%Al4C3, the average grain size of AZ91D magnesium alloy decreased from 360μm to 243μm. Based on the differential thermal analysis (DTA) results and calculations of the planar disregistry between Al4C3 and α-Mg, Al4C3 particles located in the central regions of magnesium grains can act as the heterogeneous nucleus of primary α-Mg phase.

  Info
Periodical
Advanced Materials Research (Volumes 306-307)
Chapter
Chapter 5: Structural Materials
Edited by
Shiquan Liu and Min Zuo
Pages
429-432
DOI
10.4028/www.scientific.net/AMR.306-307.429
Citation
H. Han, H. M. Miao, S. F. Liu, Y. Chen, "Grain Refinement of AZ91D Magnesium Alloy by In Situ Al4C3 Particles", Advanced Materials Research, Vols. 306-307, pp. 429-432, 2011
Online since
August 2011
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Price
$32.00
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