Cu-Al-Nb - New shape memory alloys.

• Autorzy: Lelątko, J. , Morawiec, H. , Koval, Yu.N. , Kolomytsev, V.I.
• Konferencja: XVth Physical Metallurgy and Materials Science Conference on Advanced Materials & Technologies AMT'98, 17-21 May 1998, Kraków-Krynica, Poland
• Języki publikacji: PL

Abstrakty

EN

A new series of high temperature copper based shape memory alloys has been investigated. These alloys contain 13.5wt%Al, 0.27 - 7.86wt%Nb and balance copper. The martensitic start transformation temperatures are above 300 degrees centigrade. The primary precipitates of two types of phases based on niobum were found in the structure. These alloys have very good shape recovery (98%) which slowly decreases with increasing of niobum contain. The presence of primary precipitates in these alloys leads to their high deformability. The elongation exceed 12% at the strength about 700MPa.

Słowa kluczowe

PL

stop; kształt; pamięć; miedź; przemiana martenzytyczna; własności mechaniczne

EN

alloy; shape; memory; copper; martensite transformation; mechanical properties

• Czasopismo: Inżynieria Materiałowa
• Rocznik: 1998
• Tom: R. XIX, nr 3
• Strony: 471-474
• Opis fizyczny: Bibliogr.4 poz., tab., rys.

Twórcy

autor

Lelątko, J.

• Institute of Physics and Chemistry of Metals, University of Silesia, Katowice, Poland

autor

Morawiec, H.

• Institute of Physics and Chemistry of Metals, University of Silesia, Katowice, Poland

autor

Koval, Yu.N.

• Instytute of Metal Physics, National Academy of Sciences, Kiev, Ukraine

autor

Kolomytsev, V.I.

• Instytute of Metal Physics, National Academy of Sciences, Kiev, Ukraine

• University of Silesia, Institute of Physics and Chemistry of Metals, Katowice

Bibliografia

• [1] K. Sugimoto, K. Kamei, M. Nakaniwa, Engineering Aspects of Shape Memory Alloys, Ed.by T.W. Duerig, K.N. Melton, Butterwords-Heinemann Ltd., London 1990 pp.89
• [2] J.M. Guilemany, J. Fernandez, R. Franch, A.V. Benedetti A.T. Adorno, J.de Phys. IV, suppl. III, 5(1995)368
• [3] J.M. Guilemany, J. Fernandez, R. Franch, J.de Phys. IV, suppl. III, 5(1995)979
• [4] J. Lelątko, H. Morawiec, M. Gigla, Yu.N. Koval, V.I. Kolomytsev, Proc. XVII Conf. on Appl. Crystallography, Wisła 1997 (to be published)