Effect of preheating treatment at 575 degrees C of green compacts on porous NiAl

Dong, H. X., He, Y. H., Zou, J., Xu, N. P., Huang, B. Y. and Liu, C. T. (2010) Effect of preheating treatment at 575 degrees C of green compacts on porous NiAl. Journal of Alloys And Compounds, 492 1-2: 219-225. doi:10.1016/j.jallcom.2009.12.018


Author Dong, H. X.
He, Y. H.
Zou, J.
Xu, N. P.
Huang, B. Y.
Liu, C. T.
Title Effect of preheating treatment at 575 degrees C of green compacts on porous NiAl
Formatted title
Effect of preheating treatment at 575 °C of green compacts on porous NiAl
Journal name Journal of Alloys And Compounds   Check publisher's open access policy
ISSN 0925-8388
1873-4669
Publication date 2010-03-04
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.jallcom.2009.12.018
Volume 492
Issue 1-2
Start page 219
End page 225
Total pages 7
Editor K.H.J. Buschow
Place of publication Amsterdam, Netherlands
Publisher Elsevier BV
Collection year 2010
Language eng
Subject C1
091405 Mining Engineering
970109 Expanding Knowledge in Engineering
Formatted abstract
The effect of preheating treatment on NiAl compacts was systematically investigated. The preheating treatment of green compacts at 575 °C preserves their original shapes. The formation of porous NiAl alloys usually accompanies with the volume expansion due to the formation of Ni2Al3 during the preheating treatment. The pore structures of porous NiAl alloys strongly depended on the preheating duration. The volume expansion, porosity and the maximum pore size increased with prolonged preheating treatment duration. Whereas the maximum pore size of final product decreased with increased preheating treatment duration. It has been found that the pore structures especially the maximum pore size strongly depend on the volume expansion determined by the intensity of exothermic reaction from the preheating temperature to the finally sintering temperature.
© 2009 Elsevier B.V. All rights reserved.
Keyword NiAl intermetallics
Porous materials
Preheating treatment
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 11 December 2009

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Mechanical & Mining Engineering Publications
 
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Created: Sun, 11 Apr 2010, 00:04:37 EST