Internal Friction in Nickel-Base Superalloys in the kHz-Range at Temperatures between 20 °C and 1250 °C W. Hermann, Th.V. Ort and H.G. Sockel J. Phys. IV France, 06 C8 (1996) C8-223-C8-226 DOI: 10.1051/jp4:1996847