Cascading phase transformations in high carbon steel resulting in the formation of inverse bainite: An atomic scale investigation

Kannan, Rangasayee; Wang, Yiyu; Poplawsky, Jonathan D.; Babu, S. S.; Li, Leijun

doi:10.1038/s41598-019-42037-9

Cited by 3 publications

(2 citation statements)

References 29 publications

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“…The fan-like inverse bainite formed at 648 K in the 4.12% Cr 0.88% C steel 29) and at 673 K in a high-carbon plain steel. 24) Since the conversion of the entire inverse bainitic unit to upper bainite, named the degeneration of inverse bainite is the final stage of the transformation, 30) it is possible that the formation of upper bainite (ferrite + M 3 C) structure is attributed to degeneration of inverse bainite.…”

Section: Phase Transformations Deduced From Identifiedmentioning

confidence: 99%

Identification of Carbides and Phase Transformations in Sintered Fe–Mo–Mn–C Alloys Produced under a Slow Continuous Cooling

et al. 2022

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Different sintered alloys were produced by sintering and slow cooling of powder compacts made from pre-alloyed Fe-0.50Mo-0.15Mn powder mixed with varied graphite powder contents (0.30-1.20 wt.% with 0.15% increment). According to microstructures, sintered alloys were divided into sintered hypo-eutectoid, near eutectoid, and hyper-eutectoid alloys. By using Groesbeck color tinting and X-ray diffraction technique, the common phase transformation products of these sintered alloys were found to include ferrite and carbides. The sintered hypo-eutectoid alloys had microstructures consisting of polygonal ferrite grains and two forms of ferrite + carbide mixtures, such as ferrite + M 23 C 6 carbide and ferrite + M 3 C carbide. In sintered near-eutectoid alloys, only ferrite + M 3 C carbide mixtures occupied microstructures. In sintered hyper-eutectoid alloys, large proeutectoid M 23 C 6 carbide formed first and followed by abnormal ferrite, degenerate ferrite + M 23 C 6 pearlite, lamellar ferrite + M 23 C 6 pearlite, Widmanstätten M 3 C carbide, inverse bainite (ferrite + M 3 C) and upper bainite (ferrite + M 3 C).

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Section: Phase Transformations Deduced From Identifiedmentioning

confidence: 99%

Identification of Carbides and Phase Transformations in Sintered Fe–Mo–Mn–C Alloys Produced under a Slow Continuous Cooling

et al. 2022

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“…12 A recent claim [197] that NP-LE is observed with cementite growth in ferrite is not justified. The atom probe composition-data are not of a sufficient resolution because the concentration distributions at the interface are too wide and there has been no effort to compare the experimental data against theory to demonstrate the existence of local equilibrium.…”

Section: 96)mentioning

confidence: 99%

Theory of Transformations in Steels

Bhadeshia¹

2021

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