Paper Title:
Oxidation and Melting Characterizations of AZ91D Granules during In Situ Melting
  Abstract

In this research, the oxidation and melting behaviour of AZ91D magnesium alloy granules was investigated throughout using in-situ melting technique when the granules were covered by flux. The granules were heated inside an electrical resistance furnace at four different temperatures of 650, 700, 750 and 800 °C for 30 min. Thermal analysis was used to detect the granules characteristic temperatures during the technique. The products of the heating process were examined visually and characterized by scanning electron microscopy and energy dispersive X-ray spectroscopy. The results showed that due to occurrence of severe oxidation and combustion, particularly at 800 °C, a significant amount of the granules transformed to a powdered state. The presence of the mould materials within the oxidation residue was detected indicating that severe mould-magnesium reaction occurred during heating. It was found that the granules melted during the heating process. However, the presence of oxides on the granules prevented them from fusing to form a single melt.

  Info
Periodical
Advanced Materials Research (Volumes 311-313)
Chapter
Metal Alloy Materials
Edited by
Zhongning Guo
Pages
631-634
DOI
10.4028/www.scientific.net/AMR.311-313.631
Citation
H. Jafari, M. H. Idris, A. Ourdjini, S. Farahany, "Oxidation and Melting Characterizations of AZ91D Granules during In Situ Melting", Advanced Materials Research, Vols. 311-313, pp. 631-634, 2011
Online since
August 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Chang Liu, Xi Feng Qin, Zhu Hong Yang, Xin Feng, Xiao Hua Lu
Abstract:In this work, flux method is used to control the surface morphologies and crystal structures of the fine K2Ti6O13 fibers. When K2CO3 as a...
201
Authors: Yan Qing Lu, Guo Dong Zhang, Mao Fa Jiang
Chapter 10: Environmental and Green Materials
Abstract:In order to reduce fluorine pollution, partial fluoride could be replaced by Li2O in mould flux. The effects of Li2O on...
1549
Authors: Xian Xie, Gao Feng Quan, Xiue Gu, Xing Ming Liu, Jia Le Sun
Chapter 2: Surface Engineering/Coatings
Abstract:The brazing process of magnesium alloy AZ31 was studied, and the mechanical properties of the weld were examined, and the main factors were...
792
Authors: Chen Liu, Zhi Liu Hu, Jian Min Zeng
Abstract:A new method for removal of impurities in pure molten aluminum has been presented in this paper. The basic principle of this method is that...
152
Authors: Hong Ming Wang, Gui Rong Li, Xue Ting Yuan, Xun Yin Zhang, Yu Tao Zhao, Jun Jie Wang, Kai Xuan Gu, Hong Zhang, Xiao Jing Xu
Chapter 1: Composites
Abstract:new flux method is explored to decrease the reactive temperature of in situ chemical reaction to fabricate particles reinforced aluminum...
31