Mechanical Behavior at High Temperature of a Centrifugally-cast Stainless Steel Tube

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著者

    • JIMENEZ J. a.
    • Department of Physical Metallurgy, Centro Nacional de Investigaciones Metalurgicas
    • RUANO O. a.
    • Department of Physical Metallurgy, Centro Nacional de Investigaciones Metalurgicas
    • CARSI M.
    • Department of Physical Metallurgy, Centro Nacional de Investigaciones Metalurgicas

抄録

Mechanical properties at high temperature of a centrifugally-cast stainless steel tube have been investigated by torsion tests. Microstructure and composition have been determined in different positions along the tube radius. Differences in the microstructure related to different solidification rates have been observed between the interior and exterior zones. Garofalo's equation has been calculated considering the results of torsion tests of samples obtained from both zones. A similar value for the activation energy and hyperbolic sinus exponent have been observed in both cases. However, a change in ductility and fracture stress between both zones has been found at temperatures above 1100°C.

収録刊行物

  • ISIJ international

    ISIJ international 38(8), 822-826, 1998-08-15

    The Iron and Steel Institute of Japan

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