Determination of the critical carbon content for growth of acicular ferrite
2005 (English)In: Solid-Solid Phase Transformations in Inorganic Materials 2005, Vol 1 / [ed] Howe, JM; Laughlin, DE; Lee, JK; Dahmen, U; Soffa, WA, 2005, 105-110 p.Conference paper (Refereed)
The critical carbon content for growth of acicular ferrite has been determined in Fe-Ni-C alloys by using a gradient technique. A carbon gradient has been introduced in binary Fe-Ni alloys which are subsequently heat treated isothermally. The carbon content. at the position where acicular ferrite stops growing, is determined by EMPA (Electron Microprobe Analysis) and microstructural examination with LOM (Light Optical Microscopy). At low Ni contents the experimentally determined values for the critical carbon content can be understood from the hypothesis that the growth of acicular ferrite is controlled by carbon diffusion under paraequilibrium conditions and modified with an extra thermodynamic barrier.
Place, publisher, year, edition, pages
2005. 105-110 p.
acicular ferrite, Gradient technique, Widmanstatten ferrite, critical carbon content
IdentifiersURN: urn:nbn:se:kth:diva-43339ISI: 000238836600013ScopusID: 2-s2.0-33645236325OAI: oai:DiVA.org:kth-43339DiVA: diva2:448391
International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM 2005) Location: Phoenix, AZ Date: MAY 29-JUN 03, 2005
QC 201110172011-10-172011-10-142011-10-17Bibliographically approved