Creep property evaluation of heat-resistant steels by small punch creep test

S. Komazaki, T. Nakata, T. Sugimoto, Y. Kohno

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The recently developed small punch (SP) creep test was applied to four different heat-resistant ferritic steels, namely, two kinds of conventional ferritic steels which had been actually used in the high-temperature components for long periods and two advanced high chromium ferritic steels for fusion reactor materials to investigate the applicability of the SP creep test. The ratio of the load of SP creep test to the stress of standard uniaxial creep test was calculated so that both the creep rupture curves (load/stress versus Larson-Miller parameter curves) were overlapped to convert the results of SP creep test into those of standard test. As a result, the ratio was determined to be 2.4, irrespective of the kind of ferritic steel. This result indicates that the creep rupture strength of heat-resistance ferritic steels can be estimated using a miniaturized plate-type specimen and this conversion coefficient 2.4 independent of the kind of ferritic steel.

Original languageEnglish
Title of host publicationSupplement to THERMEC 2006, 5th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2006
PublisherTrans Tech Publications Ltd
Pages4434-4439
Number of pages6
EditionPART 5
ISBN (Print)0878494286, 9780878494286
DOIs
Publication statusPublished - Jan 1 2007
Event5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006 - Vancouver, Canada
Duration: Jul 4 2006Jul 8 2006

Publication series

NameMaterials Science Forum
NumberPART 5
Volume539-543
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006
CountryCanada
CityVancouver
Period7/4/067/8/06

Keywords

  • Creep properties
  • Fossil power plant
  • Fusion reactor
  • Heat-resistant steel
  • Life prediction
  • Material deterioration
  • Small punch creep test
  • Small specimen test technique

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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