Original title: In-situ monitoring of phase transformation in Ni3Al based alloys by means of hydrogen permeation measurement
Authors: Rothová, Věra ; Čermák, Jiří
Document type: Papers
Conference/Event: Metal 2003 /12./, Hradec nad Moravicí (CZ), 2003-05-20 / 2003-05-22
Year: 2003
Language: eng
Abstract: Nickel aluminide Ni3Al crystallizes in the cubic L12 structure (Cu3Au type). It is known from the literature that this structure remains unchanged up to the melting point. However, under certain circumstances, it can change from L12 to other non-cubic ordered crystal structures. There have been reported some data which indicate that the presence of hydrogen may facilitate the change in the structure. Present detailed study of hydrogen permeation behavior in both the Ni3Al and the CMSX-4 has shown very sensitive changes of permeation rate depending upon temperature variations.
Keywords: CMSX4; hydrogen permeation; Ni3Al
Project no.: CEZ:AV0Z2041904 (CEP), GA106/01/0384 (CEP), IBS2041105 (CEP)
Funding provider: GA ČR, GA AV ČR
Host item entry: Metal 2003 /12./

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/11104/0074913

Permalink: http://www.nusl.cz/ntk/nusl-26560


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