Small punch creep of a 2124 Al - SiC composite

0177935 - UFM-A 20023129 RIV BE eng C - Konferenční příspěvek (zahraniční konf.)
Dobeš, Ferdinand - Milička, Karel
Small punch creep of a 2124 Al - SiC composite.
Composites for the Future. Brussel: Brussels Free University, 2002 - (Sol, H.; Degrieck, J.), s. 387
[European Conference on Composite Materials /10./. Brugge (BE), 03.06.2002-07.06.2002]
Grant CEP: GA ČR GA106/00/0172; GA ČR GA106/02/0274
Výzkumný záměr: CEZ:AV0Z2041904
Klíčová slova: small punch test * creep rate
Kód oboru RIV: JI - Kompozitní materiály

The creep behaviour of 2124 aluminium reinforced with 20 vol. % silicon carbide particulates was studied at temperatures from 623 to 773 K by small punch testing with a constant force. The time dependence of the central deflection was registered and the minimum deflection rate was determined. The dependence of this quantity on applied force and temperature is discussed in relation to stress exponent and activation energy obtained in conventional creep testing of the same alloy. Procedures for comparison of force in small punch testing and stress in conventional testing are discussed and a new procedure for the conversion of minimum deflection rate to minimum creep rate is suggested.
Trvalý link: http://hdl.handle.net/11104/0074838