In-Situ Observations of Sigma Phase Dissolution in 2205 Duplex Stainless Steel using Synchrotron X-Ray Diffraction

Journal Article · Tue Aug 08 00:00:00 EDT 2006 · Materials Science and Engineering A, n/a, n/a, November 30, 1999, n/a

OSTI ID:898502

Elmer, J; Palmer, T; Specht, E

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 C {+-} 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.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 898502
• Report Number(s): UCRL-JRNL-223652; TRN: US0701669
• Journal Information: Materials Science and Engineering A, n/a, n/a, November 30, 1999, n/a, Journal Name: Materials Science and Engineering A, n/a, n/a, November 30, 1999, n/a
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
36 MATERIALS SCIENCE
AUSTENITE
DISSOLUTION
FERRITE
HEATING
HEATING RATE
KINETICS
STAINLESS STEELS
SYNCHROTRON RADIATION
SYNCHROTRONS
TRANSFORMATIONS
X-RAY DIFFRACTION