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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 Cwas determined to be slower after dissolving at 1000 C than before.

Authors:
 [1];  [1];  [2]
  1. Lawrence Livermore National Laboratory (LLNL)
  2. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
962983
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Science and Engineering A; Journal Volume: 459; Journal Issue: 1-2
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 36 MATERIALS SCIENCE; AUSTENITE; DISSOLUTION; FERRITE; HEATING; HEATING RATE; KINETICS; STAINLESS STEELS; SYNCHROTRON RADIATION; SYNCHROTRONS; TRANSFORMATIONS; X-RAY DIFFRACTION

Citation Formats

Elmer, J. W., Palmer, T. A., and Specht, Eliot D. In-Situ Observations of Sigma Phase Dissolution in 2205 Duplex Stainless Steel Using Synchrotron X-Ray Diffraction. United States: N. p., 2007. Web. doi:10.1016/j.msea.2007.01.071.
Elmer, J. W., Palmer, T. A., & Specht, Eliot D. In-Situ Observations of Sigma Phase Dissolution in 2205 Duplex Stainless Steel Using Synchrotron X-Ray Diffraction. United States. doi:10.1016/j.msea.2007.01.071.
Elmer, J. W., Palmer, T. A., and Specht, Eliot D. Mon . "In-Situ Observations of Sigma Phase Dissolution in 2205 Duplex Stainless Steel Using Synchrotron X-Ray Diffraction". United States. doi:10.1016/j.msea.2007.01.071.
@article{osti_962983,
title = {In-Situ Observations of Sigma Phase Dissolution in 2205 Duplex Stainless Steel Using Synchrotron X-Ray Diffraction},
author = {Elmer, J. W. and Palmer, T. A. and Specht, Eliot D},
abstractNote = {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 Cwas determined to be slower after dissolving at 1000 C than before.},
doi = {10.1016/j.msea.2007.01.071},
journal = {Materials Science and Engineering A},
number = 1-2,
volume = 459,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}