Enhanced carbide precipitation during tempering of sub-zero Celsius treated AISI 52100 bearing steel

Matteo Villa; Karen Pantleon; Marcel A. J. Somers

Enhanced carbide precipitation during tempering of sub-zero Celsius treated AISI 52100 bearing steel

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Abstract

A 1.5%Cr, 1%C bearing steel was sub-zero Celsius treated after quenching.Transmission and reflection (synchrotron) X-Ray Diffraction were applied ex-situ at the HZBBESSY II synchrotron facility to quantify the phase fractions of martensite and austenite and determine the stress state in austenite.
The tempering response of the sub-zero treated material was studied with high resolution dilatometry and compared with the behavior of a reference as-quenched sample.X-Ray Diffraction indicates that sub-zero Celsius treating reduces the content of retained austenite in the material and introduces a state of compression in austenite. Dilatometry indicates that a long isothermal holding at cryogenic temperatures enhanced the precipitation of transition carbides during tempering.

Original language	English
Publication date	2013
Number of pages	7
Publication status	Published - 2013
Event	Heat Treat & Surface Engineering Conference & Expo 2013 - Chennai Trade Center, Chennai, India Duration: 16 May 2013 → 18 May 2013 Conference number: 27

Conference

Conference	Heat Treat & Surface Engineering Conference & Expo 2013
Number	27
Location	Chennai Trade Center
Country/Territory	India
City	Chennai
Period	16/05/2013 → 18/05/2013

Keywords

martensite
tempering
sub-zero Celsius treatment
synchrotron) XRD
dilatometry

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title = "Enhanced carbide precipitation during tempering of sub-zero Celsius treated AISI 52100 bearing steel",

abstract = "A 1.5\%Cr, 1\%C bearing steel was sub-zero Celsius treated after quenching.Transmission and reflection (synchrotron) X-Ray Diffraction were applied ex-situ at the HZBBESSY II synchrotron facility to quantify the phase fractions of martensite and austenite and determine the stress state in austenite. The tempering response of the sub-zero treated material was studied with high resolution dilatometry and compared with the behavior of a reference as-quenched sample.X-Ray Diffraction indicates that sub-zero Celsius treating reduces the content of retained austenite in the material and introduces a state of compression in austenite. Dilatometry indicates that a long isothermal holding at cryogenic temperatures enhanced the precipitation of transition carbides during tempering. ",

keywords = "martensite, tempering, sub-zero Celsius treatment, synchrotron) XRD, dilatometry",

author = "Matteo Villa and Karen Pantleon and Somers, \{Marcel A. J.\}",

year = "2013",

language = "English",

note = "Heat Treat \& Surface Engineering Conference \& Expo 2013 ; Conference date: 16-05-2013 Through 18-05-2013",

}

TY - CONF

T1 - Enhanced carbide precipitation during tempering of sub-zero Celsius treated AISI 52100 bearing steel

AU - Villa, Matteo

AU - Pantleon, Karen

AU - Somers, Marcel A. J.

N1 - Conference code: 27

PY - 2013

Y1 - 2013

N2 - A 1.5%Cr, 1%C bearing steel was sub-zero Celsius treated after quenching.Transmission and reflection (synchrotron) X-Ray Diffraction were applied ex-situ at the HZBBESSY II synchrotron facility to quantify the phase fractions of martensite and austenite and determine the stress state in austenite. The tempering response of the sub-zero treated material was studied with high resolution dilatometry and compared with the behavior of a reference as-quenched sample.X-Ray Diffraction indicates that sub-zero Celsius treating reduces the content of retained austenite in the material and introduces a state of compression in austenite. Dilatometry indicates that a long isothermal holding at cryogenic temperatures enhanced the precipitation of transition carbides during tempering.

AB - A 1.5%Cr, 1%C bearing steel was sub-zero Celsius treated after quenching.Transmission and reflection (synchrotron) X-Ray Diffraction were applied ex-situ at the HZBBESSY II synchrotron facility to quantify the phase fractions of martensite and austenite and determine the stress state in austenite. The tempering response of the sub-zero treated material was studied with high resolution dilatometry and compared with the behavior of a reference as-quenched sample.X-Ray Diffraction indicates that sub-zero Celsius treating reduces the content of retained austenite in the material and introduces a state of compression in austenite. Dilatometry indicates that a long isothermal holding at cryogenic temperatures enhanced the precipitation of transition carbides during tempering.

KW - martensite

KW - tempering

KW - sub-zero Celsius treatment

KW - synchrotron) XRD

KW - dilatometry

M3 - Paper

T2 - Heat Treat & Surface Engineering Conference & Expo 2013

Y2 - 16 May 2013 through 18 May 2013

ER -

Enhanced carbide precipitation during tempering of sub-zero Celsius treated AISI 52100 bearing steel

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Keywords

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