Melting Behaviour of (Ti, Mo)C–Co and (Ti, W)C–Co Alloys
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Limin Chen
Abstract
The melting behaviour of pseudobinary (Ti, Mo)C–Co and (Ti, W)C–Co alloys was investigated by thermo-analytical and metallographic methods including compositional measurements by energy dispersive spectroscopy (EDS). As a result of these investigations with respect to their melting behaviour, it was concluded that the pseudobinary (Ti, Mo)C–Co and (Ti, W)C–Co alloys behave in an analogous way as TiC–Co alloys do. The solidification terminates with a pseudobinary eutectic reaction: melt Co(ss) + (Ti, Me)C (Me = Mo, W) at an eutectic temperature influenced by the [Me]/([Ti] + [Me]) ratio of the alloys. The nature of the starting materials, whether they are carbide mixtures or pre-alloyed carbides, affects neither the phase equilibria nor the solidification behaviour.
Abstract
Das Schmelzverhalten von pseudobinären Legierungen der Systeme (Ti, Mo)C–Co und (Ti, W)C–Co wurde mit thermoanalytischen und metallographischen Methoden sowie mit elektronendispersiver Spektroskopie untersucht. Aus den Untersuchungen kann abgeleitet werden, daß das Verhalten dieser pseudobinären Legierung analog zu den TiC–Co Legierungen ist. Die Erstarrung endet bei einer pseudobinären Reaktion : Schmelze Co(ss) + (Ti, Me)C (Me = Mo oder W), wobei die eutektische Temperatur vom [Me]/([Ti] + [Me]) Verhältnis der Legierungen beeinflußt wird. Weder die Phasengleichgewichte noch das Erstarrungsverhalten werden von der Art des Ausgangsmaterials (Mischungen von Carbiden oder vorlegierte Pulver) beeinflußt.
Funding statement: The authors would like to thank the Austrian Academic Exchange Service (ÖAD) for the scholarships within the framework of the “North- South-Dialogue Programme” which made it possible for Dr. Limin Chen to complete his dissertation work at the Vienna University of Technology.
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© 1998 Carl Hanser Verlag, München
Articles in the same Issue
- Frontmatter
- Editorial
- Editorial
- Aufsätze
- Schwindungsverhalten von WC–Co Hartmetallen
- Melting Behaviour of (Ti, Mo)C–Co and (Ti, W)C–Co Alloys
- Melting Behaviour of (Ti, Mo)C–Ni and (Ti, W)C–Ni alloys
- Investigation of Swelling Behaviour of Ti–Al Elemental Powder Mixtures During Reaction Sintering
- Mechanical Behaviour of Granular Ceramic Films During Drying
- Grundlagen und neue Anwendungen der Kossel-Technik in der Materialforschung
- Samarium-Cobalt Phase Equilibria Revisited; Relevance to Permanent Magnets
- Dispersion Strengthening of Copper Alloys
- Thermomechanical Treatment of Shape Memory Alloys by Ausforming and Marforming
- High Cycle Fatigue Behaviour of Mo Alloyed Sintered Steel
- The Evolution of a Single Void under Irradiation
- Thermodynamics and Combustion Synthesis of Si–TiC–N and Si–TiO2–N
- Biologisierte Titanwerkstoffe
- Mitteilungen der Deutschen Gesellschaft für Materialkunde e.V.
- Zeitschrift für
Articles in the same Issue
- Frontmatter
- Editorial
- Editorial
- Aufsätze
- Schwindungsverhalten von WC–Co Hartmetallen
- Melting Behaviour of (Ti, Mo)C–Co and (Ti, W)C–Co Alloys
- Melting Behaviour of (Ti, Mo)C–Ni and (Ti, W)C–Ni alloys
- Investigation of Swelling Behaviour of Ti–Al Elemental Powder Mixtures During Reaction Sintering
- Mechanical Behaviour of Granular Ceramic Films During Drying
- Grundlagen und neue Anwendungen der Kossel-Technik in der Materialforschung
- Samarium-Cobalt Phase Equilibria Revisited; Relevance to Permanent Magnets
- Dispersion Strengthening of Copper Alloys
- Thermomechanical Treatment of Shape Memory Alloys by Ausforming and Marforming
- High Cycle Fatigue Behaviour of Mo Alloyed Sintered Steel
- The Evolution of a Single Void under Irradiation
- Thermodynamics and Combustion Synthesis of Si–TiC–N and Si–TiO2–N
- Biologisierte Titanwerkstoffe
- Mitteilungen der Deutschen Gesellschaft für Materialkunde e.V.
- Zeitschrift für
