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Further results on creep behaviour of sand-cast Mg–2.8Nd–0.8Zn–0.5Zr–0.3Gd alloy at 0.56 to 0.61Tm under stresses 40 to 90MPa

D. Thomas-Whittington, V. Srivastava, G. W. Greenwood and H. Jones


An earlier study of the creep behaviour of Elektron 21 alloy has been extended to 290°C (0.61Tm; Tm: melting temperature). The combined results confirm a stress exponent of creep rate close to 6, but with an activation energy for creep of (310 ± 20) kJ/mol for 240 to 290°C and 40 to 90 MPa. Possible mechanisms giving rise to this behaviour are discussed.

2 Correspondence address: Prof. Dr. H. Jones, Department of Engineering Materials, Mappin St, University of Sheffield, Sheffield S 1 3JD, UK, Tel.: +441142225508, Fax: +441142225943. E-mail:


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Received: 2005-07-26
Accepted: 2005-09-25
Published Online: 2013-03-01
Published in Print: 2006-02-01

© 2006, Carl Hanser Verlag, München