A microscopic investigation of the precipitation phenomena observed during the pearlite reaction in vanadium alloyed carbon steels

 
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1995 (EN)
A microscopic investigation of the precipitation phenomena observed during the pearlite reaction in vanadium alloyed carbon steels (EN)

Baker, AJ (EN)
Fourlaris, G (EN)
Papadimitriou, GD (EN)

N/A (EN)

During the isothermal pearlitic transformation in vanadium alloyed low and medium carbon steels the formation of proeutectoid ferrite precedes that of pearlitic formation. Within this proeutectoid ferrite interphase precipitation of vanadium carbide (VC) occurs in a form of linear uniformly sized and shaped arrays of particles. When pearlite subsequently forms, two distinctive pearlitic morphologies exist. Lamellar and non-lamellar spheroidised types of pearlite. Within the pearlitic constituent of both of these pearlitic microstructures VC interphase precipitation occurs. However, in the lamellar type of pearlite curved arrays of uniformly sized and shaped VC particles whose direction is perpendicular to the cementite long axis are observed while in the non-lamellar type of pearlite apparently random distributions of VC particles exist. It was consistently found that VC interphase precipitation always occurred on the moving austenite/ferrite interphase boundaries at all temperature of isothermal pearlitic transformation. © 1995. (EN)

journalArticle

TRANSFORMATION (EN)
TI-CR ALLOY (EN)
Long Axis (EN)
CARBIDE (EN)
GROWTH-MECHANISM (EN)
Carbon Steel (EN)
FERRITE (EN)
Microstructures (EN)
AUSTENITE (EN)
INTERFACIAL STRUCTURE (EN)
ALLOTRIOMORPHS (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

Acta Metallurgica Et Materialia (EN)

1995


PERGAMON-ELSEVIER SCIENCE LTD (EN)



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