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Indexed by:期刊论文

Date of Publication:2010-12-01

Journal:JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME

Included Journals:SCIE、EI、Scopus

Volume:132

Issue:6

Page Number:0612091-0612096

ISSN No.:0094-9930

Abstract:Generally, creep rupture data of a heat-resistant steel can be compressed into a narrow band by using a temperature-time parametric method such as the Larson-Miller or Manson-Haferd method In order to describe the scattering of the data, the current paper proposes a "Z parameter" method to represent the magnitude of the deviation of the rupture data to master curve Statistical analysis shows that the scattering of the Z parameter for several types of steels is supported by normal distribution Using this method. it is possible to achieve unified analysis of the creep rupture data in various temperature and stress conditions Stress-time tempo-antic parameter-tenability curves (sigma-TTP-R curves). stress-rupture time-reliability curves (sigma-t(r)-R curves), and allowable stress-temperature-reliability curves ([sigma]-T-R curves) are proposed, which could embrace the reliability concept into creep rupture property design [DOI 10 1115/1 4001731]