Three-Dimensional Observation and Growth Kinetics of Proeutectoid Ferrite Formed at Austenite Grain Boundary in a Low Carbon Microalloyed Steel

Abstract:

Three-dimensional observations of proeutectoid ferrite formed at grain boundary in an Fe-0.09%C-1.48%Mn vanadium microalloyed alloy was revealed by techniques of serial sectioning along with computer-aided reconstruction. The ferrite allotriomorphs nucleated at grain boundary edges were approximately prolate ellipsoids. Not all the ferrite allotriomorphs formed at grain boundary faces were oblate ellipsoids. The growth kinetics of ferrite allotriomorphs nucleated at grain boundary edges was greater than that of ferrite allotriomorphs nucleated at grain boundary faces.

• Periodical: Materials Science Forum (Volumes 539-543)
• Pages: 4578-4583
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.539-543.4578
• Online since: March 2007
• Authors: Kai Ming Wu, A.M. Guo, Lin Cheng
• Keywords: Ferrite, Growth Kinetic, Morpholoy, Serial Sectioning, Steel

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