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Creep of Ex-service AISI-316H Steel at Very Low Strain Rates

SYSNO ASEP	0362906
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Creep of Ex-service AISI-316H Steel at Very Low Strain Rates
Author(s)	Kloc, Luboš (UFM-A)_{RID, ORCID} Spindler, M. (GB) Sklenička, Václav (UFM-A)_{RID, ORCID}
Number of authors	3
Source Title	Materials for Advanced Power Engineering 2010. - Liege : Forschungszentrum Jülich GmbH, 2010 / Lecomte-Beckers J. ; Contrepois Q. ; Beck T. ; Kuhn B. - ISSN 1866-1793 - ISBN 978-3-89336-685-9
Pages	s. 142-149
Number of pages	8 s.
Action	Materials for advanced power engineering 2010 /9./
Event date	27.09.2010-29.09.2010
VEvent location	Liege
Country	BE - Belgium
Event type	EUR
Language	eng - English
Country	DE - Germany
Keywords	low stress creep ; primary creep ; stress exponent ; creep resistant steel
Subject RIV	JG - Metallurgy
R&D Projects	IAA200410701 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z20410507 - UFM-A (2005-2011)
Annotation	Creep response of ex-service austenitic steel was investigated at temperatures from 470 to 550°C and stresses from 80 to 120 MPa. The conditions lead to very low strain rates. Helicoid spring specimen technique and improved conventional creep tests were used to record very low creep strains. Results were compared to creep curves obtained on the new steel of the same type under the same conditions. The creep behaviour of the ex-service steel was very similar to that of the new steels. No creep damage or considerable change of microstructure was detected during the service period of 65/,000/,hours. The helicoid spring specimen technique provides results compatible with that of conventional creep tests, but with superior accuracy with very low creep strains. The data can also be used in some special cases, where the creep strain itself is limiting the creep life of the part rather than creep failure.
Workplace	Institute of Physics of Materials
Contact	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Year of Publishing	2012

Number of the records: 1