Creep crack growth rate predictions in 316H steel using stress dependent creep ductility

Autor:	Catrin M. Davies, Ali Mehmanparast, Kamran Nikbin, G. A. Webster
Rok vydání:	2014
Předmět:	Austenite Materials science Mechanical Engineering Metallurgy Metals and Alloys Flow stress Strain rate Plasticity Condensed Matter Physics Stress (mechanics) Creep Mechanics of Materials Tension (geology) Materials Chemistry Ceramics and Composites Ductility (Earth science)
Zdroj:	Materials at High Temperatures. 31:84-94
ISSN:	1878-6413 0960-3409
DOI:	10.1179/0960340913z.00000000011
Popis:	Short and long term trends in creep crack growth (CCG) rate data over test times of 500–30 000 h are available for Austenitic Type 316H stainless steel at 550°C using compact tension, C(T), specimens. The relationship between CCG rate and its dependence on creep ductility, strain rate and plastic strain levels has been examined. Uniaxial creep data from a number of batches of 316H stainless steel, over the temperature range 550–750°C, have been collected and analysed. Power-law correlations have been determined between the creep ductility, creep rupture times and average creep strain rate data with stress σ normalised by flow stress σ0·2 over the range 0·2
Databáze:	OpenAIRE
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