Effect of nickel on the kinematic stability of retained austenite in carburized bearing steels - In-situ neutron diffraction and crystal plasticity modeling of uniaxial tension tests in AISI 8620, 4320 and 3310 steels

Vikram Bedekar; Rohit Voothaluru; Dunji Yu; Adriel Wong; Enrique Galindo-Nava; Sarma B. Gorti; Ke An; R. Scott Hyde

doi:10.1016/j.ijplas.2020.102748

Effect of nickel on the kinematic stability of retained austenite in carburized bearing steels - In-situ neutron diffraction and crystal plasticity modeling of uniaxial tension tests in AISI 8620, 4320 and 3310 steels

Vikram Bedekar, Rohit Voothaluru, Dunji Yu, Adriel Wong, Enrique Galindo-Nava, Sarma B. Gorti, Ke An, R. Scott Hyde

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

The presence of kinematically metastable retained austenite in the microstructure of bearing components can significantly affect the macro and micro-mechanical material response. In the present work, the influence of Ni on the stability of the retained austenite within three different grades of high carbon bearing steel using in-situ neutron diffraction is investigated. For the first time, the results show that presence of Ni increases the stability of the austenite in the elastic regime whereas the transformation rate remains unaffected. Crystal plasticity finite element (CPFE) modeling was used to study the deformation in these three steels and shows that the predominant factor causing the difference in mechanical behavior of these steels is the austenite stability. The elastic and plastic response of the matrix martensite was found to be identical among all specimens while the austenite demonstrates similar elastic behavior but remarkably different stabilities under monotonic loading.

Original language	English
Article number	102748
Journal	International Journal of Plasticity
Volume	131
DOIs	https://doi.org/10.1016/j.ijplas.2020.102748
State	Published - Aug 2020

Funding

This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy . The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ). This research used resources of the Compute and Data Environment for Science (CADES) and the Oak Ridge Leadership Computing Facility (OLCF) at the Oak Ridge National Laboratory (ORNL) , which are supported by the Office of Science of the U.S. Department of Energy (DOE) under Contract No. DE-AC05-00OR22725 . The neutron diffraction portion of this research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by ORNL. The authors would like thank Mr. Bob Pendergrass for SEM analysis and Mr. Matt Boyle, Mr. Jeremy Kimble, Mr. Ike Mann and Prototype shop at The Timken Company for fabricating and analyzing the bearing rings.

Funders	Funder number
CADES
Data Environment for Science
Oak Ridge National Laboratory
U.S. Department of Energy	DE-AC05-00OR22725
Office of Science
Oak Ridge National Laboratory

Keywords

Crystal plasticity
Ductility
Mechanical testing
Neutron diffraction
Phase transformation

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Bedekar, V., Voothaluru, R., Yu, D., Wong, A., Galindo-Nava, E., Gorti, S. B., An, K., & Hyde, R. S. (2020). Effect of nickel on the kinematic stability of retained austenite in carburized bearing steels - In-situ neutron diffraction and crystal plasticity modeling of uniaxial tension tests in AISI 8620, 4320 and 3310 steels. International Journal of Plasticity, 131, Article 102748. https://doi.org/10.1016/j.ijplas.2020.102748

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title = "Effect of nickel on the kinematic stability of retained austenite in carburized bearing steels - In-situ neutron diffraction and crystal plasticity modeling of uniaxial tension tests in AISI 8620, 4320 and 3310 steels",

abstract = "The presence of kinematically metastable retained austenite in the microstructure of bearing components can significantly affect the macro and micro-mechanical material response. In the present work, the influence of Ni on the stability of the retained austenite within three different grades of high carbon bearing steel using in-situ neutron diffraction is investigated. For the first time, the results show that presence of Ni increases the stability of the austenite in the elastic regime whereas the transformation rate remains unaffected. Crystal plasticity finite element (CPFE) modeling was used to study the deformation in these three steels and shows that the predominant factor causing the difference in mechanical behavior of these steels is the austenite stability. The elastic and plastic response of the matrix martensite was found to be identical among all specimens while the austenite demonstrates similar elastic behavior but remarkably different stabilities under monotonic loading.",

keywords = "Crystal plasticity, Ductility, Mechanical testing, Neutron diffraction, Phase transformation",

author = "Vikram Bedekar and Rohit Voothaluru and Dunji Yu and Adriel Wong and Enrique Galindo-Nava and Gorti, {Sarma B.} and Ke An and Hyde, {R. Scott}",

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Bedekar, V, Voothaluru, R, Yu, D, Wong, A, Galindo-Nava, E, Gorti, SB , An, K & Hyde, RS 2020, 'Effect of nickel on the kinematic stability of retained austenite in carburized bearing steels - In-situ neutron diffraction and crystal plasticity modeling of uniaxial tension tests in AISI 8620, 4320 and 3310 steels', International Journal of Plasticity, vol. 131, 102748. https://doi.org/10.1016/j.ijplas.2020.102748

Effect of nickel on the kinematic stability of retained austenite in carburized bearing steels - In-situ neutron diffraction and crystal plasticity modeling of uniaxial tension tests in AISI 8620, 4320 and 3310 steels. / Bedekar, Vikram; Voothaluru, Rohit; Yu, Dunji et al.
In: International Journal of Plasticity, Vol. 131, 102748, 08.2020.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Effect of nickel on the kinematic stability of retained austenite in carburized bearing steels - In-situ neutron diffraction and crystal plasticity modeling of uniaxial tension tests in AISI 8620, 4320 and 3310 steels

AU - Bedekar, Vikram

AU - Voothaluru, Rohit

AU - Yu, Dunji

AU - Wong, Adriel

AU - Galindo-Nava, Enrique

AU - Gorti, Sarma B.

AU - An, Ke

AU - Hyde, R. Scott

PY - 2020/8

Y1 - 2020/8

N2 - The presence of kinematically metastable retained austenite in the microstructure of bearing components can significantly affect the macro and micro-mechanical material response. In the present work, the influence of Ni on the stability of the retained austenite within three different grades of high carbon bearing steel using in-situ neutron diffraction is investigated. For the first time, the results show that presence of Ni increases the stability of the austenite in the elastic regime whereas the transformation rate remains unaffected. Crystal plasticity finite element (CPFE) modeling was used to study the deformation in these three steels and shows that the predominant factor causing the difference in mechanical behavior of these steels is the austenite stability. The elastic and plastic response of the matrix martensite was found to be identical among all specimens while the austenite demonstrates similar elastic behavior but remarkably different stabilities under monotonic loading.

AB - The presence of kinematically metastable retained austenite in the microstructure of bearing components can significantly affect the macro and micro-mechanical material response. In the present work, the influence of Ni on the stability of the retained austenite within three different grades of high carbon bearing steel using in-situ neutron diffraction is investigated. For the first time, the results show that presence of Ni increases the stability of the austenite in the elastic regime whereas the transformation rate remains unaffected. Crystal plasticity finite element (CPFE) modeling was used to study the deformation in these three steels and shows that the predominant factor causing the difference in mechanical behavior of these steels is the austenite stability. The elastic and plastic response of the matrix martensite was found to be identical among all specimens while the austenite demonstrates similar elastic behavior but remarkably different stabilities under monotonic loading.

KW - Crystal plasticity

KW - Ductility

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KW - Phase transformation

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Bedekar V, Voothaluru R, Yu D, Wong A, Galindo-Nava E, Gorti SB et al. Effect of nickel on the kinematic stability of retained austenite in carburized bearing steels - In-situ neutron diffraction and crystal plasticity modeling of uniaxial tension tests in AISI 8620, 4320 and 3310 steels. International Journal of Plasticity. 2020 Aug;131:102748. doi: 10.1016/j.ijplas.2020.102748

Effect of nickel on the kinematic stability of retained austenite in carburized bearing steels - In-situ neutron diffraction and crystal plasticity modeling of uniaxial tension tests in AISI 8620, 4320 and 3310 steels

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