Original title: Influence of atmosphere on small punch testing of P91 steel
Authors: Dymáček, Petr ; Dobeš, Ferdinand
Document type: Papers
Conference/Event: Determination of Mechanical Properties of Materials by Small Punch and Other Miniature Techniques, Ostrava (CZ), 2012-10-02 / 2012-10-04
Year: 2012
Language: eng
Abstract: The small punch testing (SPT) under constant force condition was performed in various atmospheres: air, hydrogen and argon. The material selected for the study was P91 steel and testing temperature 873 K. The effect of atmosphere on the test results such as time to rupture, minimum deflection rate and other parameters was measured and evaluated. The results show that there is not very strong but definite effect of atmosphere on SPT creep rupture time. The longest times to rupture were obtained in hydrogen atmosphere for whole range of tested forces. However the difference between tests in hydrogen and tests in air or in argon diminished with decreasing force and longer time to rupture.
Keywords: creep; small punch; steel P91
Project no.: ED1.1.00/02.0068
Funding provider: GA MŠk
Host item entry: Determination of Mechanical Properties of Materials by Small Punch and Other Miniature Techniques - Conference Proceedings, ISBN 978-80-260-0079-2

Institution: Institute of Physics of Materials AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0215257

Permalink: http://www.nusl.cz/ntk/nusl-135511


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Conference materials > Papers