Experimental study of the distribution of alloying elements after the formation of epitaxial ferrite upon cooling in a low-carbon steel

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2010.06.006· OSTI ID:22066217

Kwakernaak, C; Sloof, W G ^[1]; Zhao, L ^[2]; Sietsma, J ^[1]

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1. Department of Materials Science and Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft (Netherlands)
2. Materials Innovation Institute (M2i), Mekelweg 2, 2628 CD Delft (Netherlands)

The distributions of carbon and substitutional elements in a low-carbon steel during the formation of epitaxial ferrite on cooling after intercritical annealing have been studied by electron probe microanalysis (EPMA). The analysis has shown that the formation of epitaxial ferrite takes place with a partial redistribution of alloying elements between the epitaxial ferrite and the austenite. This redistribution of alloying elements causes compositional gradients in the epitaxial ferrite that lead to a different etching behaviour with respect to the intercritical ferrite. Contrary to Thermo-Calc predictions, a distinct partitioning behaviour of silicon has been observed.

• OSTI ID: 22066217
• Journal Information: Materials Characterization, Vol. 61, Issue 10; Other Information: Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
AUSTENITE
CARBON
CARBON STEELS
COOLING
ELECTRON MICROPROBE ANALYSIS
EPITAXY
ETCHING
FERRITE
PHASE TRANSFORMATIONS
SILICON
SPATIAL DISTRIBUTION