UHPM - 95
J. Phys. IV France 05 (1995) C7-315-C7-320
High-Temperature Brittleness and Interfacial Segregation in Tin BronzesW. Ozgowicz1 and M. Biscondi2
1 Institute of Physical Metallurgy, Silesian Technical University, ul. Konarskiego 18a, 44-100 Gliwice, Poland
2 Ecole des Mines, 158 cours Fauriel, 42023 Saint-Etienne cedex 2, France
This paper presents preliminary results of Auger electron spectroscopy performed on fractured specimens of copper and tin bronzes at the time of in situ hot tensile tests. They show interfacial segregation of Sn, P and S, according to the materials and the test temperature. In comparing these results and the mechanical behaviour of the materials, we discuss the effect of the interfacial segregations on the drop in ductility at intermediate temperatures and on its restoration by dynamic recrystallisation.
© EDP Sciences 1995