Microstructure and crystallography of 20MnCr5 steel tempered at different conditions

Wang, Shen Cun; Wu, Yi; Hua, Yi; Li, Zhi Cheng; Zhou, Hong

doi:10.1007/s10853-010-4668-0

Cited by 7 publications

(3 citation statements)

References 26 publications

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“…The structure of such heterointerface has been widely investigated, [1][2][3][4][5][6][7][8] and the accurate orientation relationship (OR) of the fcc-bcc heterointerface has been revealed using various experimental techniques such as a convergent beam Kikuchi line diffraction pattern (CBKLP) 5) and an electron backscatter diffraction (EBSD). 6,7) On the other hand, it is not straightforward to discuss the kinetics of such heterointerface since it is still difficult to observe the motion of the heterointerface during phase transformation directly, although a new in-situ observation technique has been developed. 8) Therefore, theoretical and numerical simulations have contributed to the interpretation of the structure and kinetics of the fcc-bcc heterointerface during phase transformation.…”

Section: Introductionmentioning

confidence: 99%

A Molecular Dynamics Study of Bidirectional Phase Transformation between bcc and fcc Iron

et al. 2011

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Bidirectional phase transformation between bcc and fcc iron is investigated by molecular dynamics simulation using the Finnis-Sinclair potential with a cutoff function in the atomic charge density. It is confirmed that the influence distance (i.e., cutoff distance) of the atomic charge density affects the relative stability between the bcc and fcc phases at high temperature: the bcc is stable at a long cutoff distance and the fcc is stable at a short cutoff distance. Hence, the bidirectional phase transformation across the A3 point comes true by changing the cutoff distance at the A3 point. The propagation of an fcc-bcc heterointerface with a Nishiyama-Wassermann orientation relationship is then examined by relaxation of an fcc-bcc biphasic system at various temperatures. The fcc-to-bcc phase transformation is observed below the A3 point, whereas the heterointerface does not move to any direction at the A3 point. On the other hand, the bcc-to-fcc phase transformation is observed above the A3 point, which has not been successful in previous studies using the original Finnis-Sinclair potential.

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Section: Introductionmentioning

confidence: 99%

A Molecular Dynamics Study of Bidirectional Phase Transformation between bcc and fcc Iron

et al. 2011

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“…This includes the mechanical processing of the materials after heat treatment. Other methods for sample preparation, such as reactive ion etching (RIE), as well as those implemented in a study by Wang et al, deserve consideration [18].…”

Section: Residual Austenite and Residual Stress Analysismentioning

confidence: 99%

Comparison of slip-rolling behaviour between 20MnCr5 gear steel, 36NiCrMoV1-5-7 hot working tool steel and 45SiCrMo6 spring steel

Burbank

Woydt

2015

Wear

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“…20MnCr5 (SAE 5120) was a typical low-carbon, low-alloy steel that was widely used in the automotive industry, especially for gear and shaft production [1,2]. For gear products, the rolled steel was reheated, die forged, carburized, and heat treated at the gear manufacturer [3,4].…”

Section: Introductionmentioning

confidence: 99%

Grain growth behavior of niobium microalloyed 20MnCr5 steel and the effect of boron

Zhu

Wang³

et al. 2022

Materialwissenschaft Werkst

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Grain growth behaviors of niobium free, 0.021 wt. % niobium microalloyed and 0.024 wt. % niobium-0.0022 wt. % boron microalloyed 20MnCr5 steels are investigated in this paper. Optical microscopy and field-emission scanning electron microscopy were used to analyze the prior austenite grain. Transmission electron microscopy and energy dispersive spectroscopy were used to investigate the morphologies and compositions of the precipitates, respectively. The results show that adding niobium reduces the size of prior austenite grain. The addition of boron to niobium microalloyed steel, however, causes grain coarsening. Thermodynamic and kinetic calculations were performed to explain the mechanism of grain growth behavior. The results indicate that the addition of niobium and boron causes the difference in solution temperatures of aluminum nitride and niobium carbonitride precipitates. The addition of boron inhibits the precipitation of niobium carbonitride and aluminum nitride and causes precipitates coarsening. The precipitation observation backs up the calculation results.

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Microstructure and crystallography of 20MnCr5 steel tempered at different conditions

Cited by 7 publications

References 26 publications

A Molecular Dynamics Study of Bidirectional Phase Transformation between bcc and fcc Iron

A Molecular Dynamics Study of Bidirectional Phase Transformation between bcc and fcc Iron

Comparison of slip-rolling behaviour between 20MnCr5 gear steel, 36NiCrMoV1-5-7 hot working tool steel and 45SiCrMo6 spring steel

Grain growth behavior of niobium microalloyed 20MnCr5 steel and the effect of boron

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