Original title: Comparison of Creep Behaviour and Microstructural Changes in Electrodeposited Ultrafine-grained Nickel and its Particle-reinforced Nanocomposite
Authors: Kvapilová, Marie ; Sklenička, Václav ; Kuchařová, Květa ; Vidrich, G.
Document type: Papers
Conference/Event: NANOCON 2012. International Conference /4./, Brno (CZ), 2012-10-23 / 2012-10-25
Year: 2012
Language: eng
Abstract: On the basic of the creep experimental results the paper reports comparison creep behaviour of electrodeposited ultrafine-grained nickel and its particle-reinforced nanocomposite. The objective of this research was to further improve the knowledge of the creep behaviour of monolithic nickel and to explore the role of nano-sized SiO2 particles in the potential creep strengthening of electrodeposited Ni nanocomposite. The creep behaviour and microstructure of the pure ultrafine-grained nickel and its nanocomposite reinforced by 2 vol.% nano-sized SiO2 particles were studied at temperatures in the range from 293 to 573 K and at the tensile stresses between 100 to 800 MPa. It was found that the creep resistance of the nanocomposite might be noticeably improved compared to the monolithic nickel. Possible creep mechanisms controlling the creep rate during the creep loading were discussed. The Coble creep as creep rate controlling mechanism was founded improbable.
Keywords: creep; electrodeposition; nanocomposite; ultrafine-grained Ni
Project no.: GAP108/11/2260 (CEP), ED1.1.00/02.0068
Funding provider: GA ČR, GA MŠk
Host item entry: NANOCON 2012 - Conference Proceedings, ISBN 978-80-87294-32-1

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/11104/0215548

Permalink: http://www.nusl.cz/ntk/nusl-135510


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