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Experimental Investigation of Bainite Microstructure in Fe-C
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DOI：10.1007/s11669-025-01224-0.png)
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Abstract
En 中文
In this work, we present an experimental investigation of the bainite microstructure in pure Fe-C systems. Although Fe-C alloys are of fundamental importance to steel, the microstructure of metastable undercooled austenite-particularly the mechanism of bainite formation-remains a subject of debate. This uncertainty arises from the limited number of experimental studies available for the Fe-C system and the controversial interpretations of existing results. To address this gap, we employed a comprehensive set of methodologies, including heat treatment with dilatometry, light microscopy, scanning electron microscopy (SEM) with in-situ nanoindentation, and transmission electron microscopy (TEM), to characterize bainite and related metastable microstructures (such as pearlite, acicular ferrite, Widmanst & auml;tten ferrite, and martensite). Our results reveal that bainite formation competes with other metastable microstructures, complicating both its development and conventional characterization. By integrating these complementary techniques, we achieve a more complete and reliable characterization of bainite in the Fe-C system.
Keywords:
bainite
Fe-C
metastability
phase transition
Journal
J
IF:
1.7
Papers:
35
Citations:
3.5K
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Cited Papers