Dresden 2006 – wissenschaftliches Programm

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MM: Metall- und Materialphysik

MM 23: Mechanical Properties I

MM 23.2: Vortrag

Mittwoch, 29. März 2006, 14:15–14:30, IFW B

Fatigue of highly strengthended Cu-Ag alloys — •J. Freudenberger¹, H.-J. Klauß¹, K. Heinze^1,2, A. Gaganov¹, M. Schaper², and L. Schultz^1,2 — ¹IFW Dresden, Institute for Metallic Materials, P.O.-Box 270116, D-01171 Dresden, Germany — ²TU Dresden, Institute of Material Science, D-01062 Dresden, Germany

The fatigue behaviour of high strength Cu-Ag conductor materials which have undergone thermal treatments and subsequentially progressive strain hardening by repetitive cold drawing is reported. When a maximum load of 1 GPa and a minimum-to-maximum stress ratio of R=0.1 is applied, the investigated materials show a similar behaviour and a fatigue lifetime in the range of 5… 9× 10³ cycles to failure is observed. The fatigue lifetime of all investigated materials is sufficient with respect to the intended application, which the materials are developed for, i.e. conductors for pulsed high field magnets.