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On the thermodynamics and kinetics of carbides in the aluminium-rich corner of the AlTiC phase diagram
Casting of Metals, Royal Institute of Technology, Stockholm, Sweden.ORCID iD: 0000-0002-0101-0062
Casting of Metals, Royal Institute of Technology, Stockholm, Sweden.
Department MTM, Katholieke Universiteit Leuven, De Croylaan 2, B-3030 Heverlee, Belgium.
1991 (English)In: Materials Science & Engineering: A, ISSN 0921-5093, Vol. 135, no C, 119-123 p.Article in journal (Refereed) Published
Abstract [en]

Aluminium composites have a great potential because of their high strength-to-weight ratio. Carbides will in the future be powerful reinforcements. To be able to manufacture these it is of importance to know the thermodynamic properties and the kinetic limitations. The objective of this investigation is to study the equilibria between the carbides occurring in the AlTiC system as well as the initial precipitation and dissolution behaviour of these carbides. It can be shown that there is a change in stability between TiC and Al4C3, depending on both composition and temperature. To study the nucleation and precipitation behaviour of the carbides in liquid aluminium and aluminium alloys a set of alloys were melted and heated to an appropriate temperature in graphite crucibles. The effect of time and the effect of composition on the chemical reactions involving carbides have been investigated. A theoretical analysis of both the thermodynamics and kinetics was performed, giving a tentative explanation. © 1991.

Place, publisher, year, edition, pages
1991. Vol. 135, no C, 119-123 p.
Keyword [en]
Carbides - Thermodynamic Properties, Chemical Reactions - Reaction Kinetics, Composite Materials - Phase Diagrams, Thermodynamics - Mathematical Models, Aluminum Carbide, Titanium Carbide, Aluminum Titanium Alloys
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:hj:diva-16663OAI: oai:DiVA.org:hj-16663DiVA: diva2:454530
Available from: 2011-11-07 Created: 2011-11-07 Last updated: 2015-06-01Bibliographically approved

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Citation style
  • apa
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