Formation of "carbide-free zones" resulting from the interplay of C redistribution and carbide precipitation during bainitic transformation
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In: Materialia, Vol. 7.2019, No. September, 100380, 23.06.2019.
Research output: Contribution to journal › Article › Research › peer-review
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T1 - Formation of "carbide-free zones" resulting from the interplay of C redistribution and carbide precipitation during bainitic transformation
AU - Klein, Thomas
AU - Hofer, Christina
AU - Lukas, Marina
AU - Wojcik, Tomasz
AU - Schnitzer, Ronald
AU - Galler, Matthew
AU - Ressel, Gerald
PY - 2019/6/23
Y1 - 2019/6/23
N2 - Advanced bainitic steels exploit their constitution of a phase mixture of bainitic ferrite and retained austenite. The desired microstructures are usually adjusted via isothermal or continuous cooling treatments below the bainite-start-temperature. In the present work, we analyze the microstructural evolution during bainite formation in detail and we report on a novel mechanism for the formation of “carbide-free zones” in the close proximity of austenite. Carbides are formed in the interior of bainitic ferrite, which is isolated from surrounding austenite, while the depletion of C in the vicinity of austenite suppresses their formation.
AB - Advanced bainitic steels exploit their constitution of a phase mixture of bainitic ferrite and retained austenite. The desired microstructures are usually adjusted via isothermal or continuous cooling treatments below the bainite-start-temperature. In the present work, we analyze the microstructural evolution during bainite formation in detail and we report on a novel mechanism for the formation of “carbide-free zones” in the close proximity of austenite. Carbides are formed in the interior of bainitic ferrite, which is isolated from surrounding austenite, while the depletion of C in the vicinity of austenite suppresses their formation.
UR - http://www.scopus.com/inward/record.url?scp=85068039544&partnerID=8YFLogxK
U2 - 10.1016/j.mtla.2019.100380
DO - 10.1016/j.mtla.2019.100380
M3 - Article
VL - 7.2019
JO - Materialia
JF - Materialia
SN - 2589-1529
IS - September
M1 - 100380
ER -