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Creep Deformation, Rupture Strength, and Rupture Ductility of Grades T/P92 Steels PUBLIC ACCESS

[+] Author Affiliations
Kazuhiro Kimura, Kota Sawada, Hideaki Kushima

National Institute for Materials Science, Tsukuba, Ibaraki, Japan

Paper No. ETAM2014-1026, pp. 193-201; 9 pages
doi:10.1115/ETAM2014-1026
From:
  • ASME 2014 Symposium on Elevated Temperature Application of Materials for Fossil, Nuclear, and Petrochemical Industries
  • ASME 2014 Symposium on Elevated Temperature Application of Materials for Fossil, Nuclear, and Petrochemical Industries
  • Seattle, Washington, USA, March 25–27, 2014
  • Conference Sponsors: ASME Standards and Certification
  • ISBN: 978-0-7918-4074-0
  • Compilation Copyright © 2014 ASME

abstract

Creep and creep rupture strength property of Grades T/P92 steels are investigated. Assessment of creep rupture strength is examined by region splitting analysis method with the use of three type time-temperature parameters (TTP) of Larson-Miller, Orr-Sherby-Dorn, and Manson-Succop parameters. According to the evaluated creep rupture strength, the current allowable stress of Grades T/P92 steels is reviewed. Remarkable drop in creep rupture ductility of the steels is recognized in the low-stress and long-term regime where the ratio of stress to 0.2% offset yield stress is 50% and below, and it is discussed in consideration of change in creep deformation property.

Paper published with permission.

Compilation Copyright © 2014 ASME
Topics: Creep , Steel , Ductility , Rupture
This article is only available in the PDF format.

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