Cementite Solidification in Cast Iron

Two hypereutectic cast irons (5.01 pct Cr and 5.19 pct V) were cast and the polished surfaces of test pieces were deep-etched and analyzed via scanning electron microscopy. The results show that graphite lamellae intersect the cementite and a thin austenite film nucleates and grows on the cementite...

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Bibliographic Details
Published in:Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2014-06, Vol.45 (3), p.811-814
Main Authors: Coronado, J. J., Sinatora, A., Albertin, E.
Format: Article
Language:English
Subjects:
Alloy solidification
Applied sciences
Austenite
Cast iron
Cementite
Characterization and Evaluation of Materials
Chemistry and Materials Science
Chromium
Communication
Exact sciences and technology
Graphite
Materials Science
Metallic Materials
Metallurgy
Metals. Metallurgy
Microstructure
Nanotechnology
Plates
Process metallurgy
Production of metals
Structural Materials
Surfaces and Interfaces
Thin Films
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Summary:Two hypereutectic cast irons (5.01 pct Cr and 5.19 pct V) were cast and the polished surfaces of test pieces were deep-etched and analyzed via scanning electron microscopy. The results show that graphite lamellae intersect the cementite and a thin austenite film nucleates and grows on the cementite plates. For both compositions, graphite and cementite can coexist as equilibrium phases, with the former always nucleating and growing first. The eutectic carbides grow from the austenite dendrites in a direction perpendicular to the primary plates.
ISSN:1073-5615
1543-1916
DOI:10.1007/s11663-014-0073-4