Nondestructive assessing of the aging effects in 2205 duplex stainless steel using thermoelectric power

Noemi Ortiz Lara, Alberto Ruiz, Carlos Rubio, Ricardo R. Ambriz, Ariosto Medina

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

The microstructural transformation of ferrite into secondary austenite and sigma phase during long term exposure to high-temperatures (650900 °C) in a 2205 duplex stainless steel has been investigated using the thermoelectric power (TEP) technique, scanning electron microscopy (SEM), Charpy-impact test (CIT), equivalent ferrite and sigma phases content measurements. The possibility of using the TEP coefficient as a nondestructive assessment technique to characterize the aging kinetics of 2205 duplex stainless steel is discussed. Experimental results indicate that TEP coefficient is sensitive to the gradual microstructural transformation of ferrite phase experienced by the 2205 duplex stainless steel during the aging treatments.

Original languageEnglish
Pages (from-to)463-468
Number of pages6
JournalNDT and E International
Volume44
Issue number5
DOIs
StatePublished - Sep 2011

Keywords

  • Ferrite transformation
  • Impact test
  • Sigma phase
  • Thermoelectric power

Fingerprint

Dive into the research topics of 'Nondestructive assessing of the aging effects in 2205 duplex stainless steel using thermoelectric power'. Together they form a unique fingerprint.

Cite this