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Erschienen in:
2010 | OriginalPaper | Buchkapitel
A Statistical Study on Stress-Strain Relation of AISI 304 Stainless Steel Under Elevated Temperatures
Modelling, Simulation, Testing, and Applications
verfasst von : S.H. Park, J.K. Kim, J.H. Kim
Erschienen in: Materials with Complex Behaviour
Verlag: Springer Berlin Heidelberg
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Abstract
This study presents the tensile test results of AISI 304 stainless steel under room and elevated temperatures and the use of normal statistical plot to design purpose. The minimum ductility occurs in an intermediate temperature range (650°C). It is shown that the precipitation of chrome-carbide is the cause of decrease of elongation at higher temperature from EDX (Energy Dispersive X-ray) analysis results. The tensile strength and yield strength have variations in accordance with a normal distribution at room as well as elevated temperature. This is shown on the normal statistical plot. It is shown that the stress-strength model concept may be applicable to the normal statistical plot. On the normal statistical plot, the A-Basis and the B-Basis strength can be the baseline for the selection of the allowable stress. The allowable stress can be determined from the value of the normal distribution table or just by picking a point on the normal statistical plot.