期刊
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
卷 49A, 期 11, 页码 5277-5287出版社
SPRINGER
DOI: 10.1007/s11661-018-4899-2
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资金
- Spanish Ministerio de Economia y Competitividad (MINECO) [ENE2015-70300-C3-2-R, MAT2016-80875-C3-1-R]
- Research Fund for Coal and Steel [RFSR-CT- 2014-00019]
The bainitic ferrite phase formed at temperatures below 573 K (300 degrees C) in high-carbon high-silicon steels holds an amount of carbon well above that expected from the thermodynamic paraequilibrium with austenite. Diffraction experiments have shown that the ferrite lattice is sufficiently Zener-ordered to possess a tetragonal symmetry, which allows the structures to be supersaturated in carbon. It could be expected that carbon undergoes ordering beyond that indicated by the Zener-ordering temperature as in the early stages of tempering of Fe-based martensites. This study examines the formation of cluster arrangements of carbon within bainitic ferrite and their relationship to the tetragonal distortion. (C) The Minerals, Metals & Materials Society and ASM International 2018
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