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Weibull Statistical Analysis of Elevated Temperature Tensile Strength and Creep Rupture Time in Stainless Steels  

Jung, W.T. (부경대학교 대학원)
Kim, Y.S. (부경대학교 기계자동차공학과)
Kim, S.J. (부경대학교 기계자동차공학과)
Publication Information
Journal of Power System Engineering / v.14, no.4, 2010 , pp. 56-62 More about this Journal
Abstract
This paper is concerned with the stochastic nature of elevated temperature tensile strength and creep rupture time in 18Cr-8Ni stainless steels. The Weibull statistical analysis using the NRIM data sheet has been performed to investigate the effects of variability of the elevated temperature tensile strength and creep rupture time on the testing temperature. From those investigations, the distributions of temperature tensile strength and creep rupture time were well followed in 2-parameter Weibull. The shape parameter and scale parameter for the Weibull distribution of tensile strength were decreased with increasing the testing temperature. For the creep rupture time, generally, the shape parameter were decreased with increasing the testing temperature.
Keywords
Weibull Statistical Analysis; Tensile Strength; Creep Rupture Time; Stainless Steel; Variability;
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Times Cited By KSCI : 2  (Citation Analysis)
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