In situ observations of sigma phase dissolution in 2205 duplex stainless steel using synchrotron X-ray diffraction

J. W. Elmer; T. A. Palmer; E. D. Specht

doi:10.1016/j.msea.2007.01.071

In situ observations of sigma phase dissolution in 2205 duplex stainless steel using synchrotron X-ray diffraction

J. W. Elmer
, T. A. Palmer
, E. D. Specht

Materials Research Institute (MRI)

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

58 Scopus citations

Abstract

Synchrotron radiation was used to directly observe the transformation of ferrite, austenite and sigma phases during heating and cooling of 2205 duplex stainless steel. Sigma formed during the initial stages of heating, dissolved as the temperature was increased, and reformed on cooling. The dissolution temperature of sigma was measured to be 985 ± 2.8 °C at a heating rate of 0.25 °C/s, and the kinetics of sigma formation at 850 °C was determined to be slower after dissolving at 1000 °C than before.

Original language	English (US)
Pages (from-to)	151-155
Number of pages	5
Journal	Materials Science and Engineering: A
Volume	459
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2007.01.071
State	Published - Jun 25 2007

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2007.01.071

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@article{18cc2436a90b4c6ea54c838352a8355f,

title = "In situ observations of sigma phase dissolution in 2205 duplex stainless steel using synchrotron X-ray diffraction",

abstract = "Synchrotron radiation was used to directly observe the transformation of ferrite, austenite and sigma phases during heating and cooling of 2205 duplex stainless steel. Sigma formed during the initial stages of heating, dissolved as the temperature was increased, and reformed on cooling. The dissolution temperature of sigma was measured to be 985 ± 2.8 °C at a heating rate of 0.25 °C/s, and the kinetics of sigma formation at 850 °C was determined to be slower after dissolving at 1000 °C than before.",

author = "Elmer, \{J. W.\} and Palmer, \{T. A.\} and Specht, \{E. D.\}",

note = "Funding Information: The LLNL portion of this work was performed under the auspices of the U.S. Department of Energy, Lawrence Livermore National Laboratory, under contract no. W-7405-ENG-48. The ORNL portion of this work was sponsored by the U.S. Department of Energy Division of Materials Sciences and Engineering under contract no. DE-AC05-00OR22725 with UT-Battelle, LLC. The UNICAT facility at the Advanced Photon Source (APS) is supported by the U.S. DOE under award no. DEFG02-91ER45439, through the Frederick Seitz Materials Research Laboratory at the University of Illinois at Urbana-Champaign, the Oak Ridge National Laboratory (U.S. DOE contract DE-AC05-00OR22725 with UT-Battelle, LLC), the National Institute of Standards and Technology (U.S. Department of Commerce) and UOP LLC. The APS is supported by the U.S. DOE, Basic Energy Sciences, Office of Science under contract no. W-31-109-ENG-38. The authors would like to thank Mr. Jackson Go for performing the optical metallography. ",

year = "2007",

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doi = "10.1016/j.msea.2007.01.071",

language = "English (US)",

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AU - Elmer, J. W.

AU - Palmer, T. A.

AU - Specht, E. D.

N1 - Funding Information: The LLNL portion of this work was performed under the auspices of the U.S. Department of Energy, Lawrence Livermore National Laboratory, under contract no. W-7405-ENG-48. The ORNL portion of this work was sponsored by the U.S. Department of Energy Division of Materials Sciences and Engineering under contract no. DE-AC05-00OR22725 with UT-Battelle, LLC. The UNICAT facility at the Advanced Photon Source (APS) is supported by the U.S. DOE under award no. DEFG02-91ER45439, through the Frederick Seitz Materials Research Laboratory at the University of Illinois at Urbana-Champaign, the Oak Ridge National Laboratory (U.S. DOE contract DE-AC05-00OR22725 with UT-Battelle, LLC), the National Institute of Standards and Technology (U.S. Department of Commerce) and UOP LLC. The APS is supported by the U.S. DOE, Basic Energy Sciences, Office of Science under contract no. W-31-109-ENG-38. The authors would like to thank Mr. Jackson Go for performing the optical metallography.

PY - 2007/6/25

Y1 - 2007/6/25

N2 - Synchrotron radiation was used to directly observe the transformation of ferrite, austenite and sigma phases during heating and cooling of 2205 duplex stainless steel. Sigma formed during the initial stages of heating, dissolved as the temperature was increased, and reformed on cooling. The dissolution temperature of sigma was measured to be 985 ± 2.8 °C at a heating rate of 0.25 °C/s, and the kinetics of sigma formation at 850 °C was determined to be slower after dissolving at 1000 °C than before.

AB - Synchrotron radiation was used to directly observe the transformation of ferrite, austenite and sigma phases during heating and cooling of 2205 duplex stainless steel. Sigma formed during the initial stages of heating, dissolved as the temperature was increased, and reformed on cooling. The dissolution temperature of sigma was measured to be 985 ± 2.8 °C at a heating rate of 0.25 °C/s, and the kinetics of sigma formation at 850 °C was determined to be slower after dissolving at 1000 °C than before.

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JO - Materials Science and Engineering: A

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IS - 1-2

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In situ observations of sigma phase dissolution in 2205 duplex stainless steel using synchrotron X-ray diffraction

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