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Abstract

The creep behaviour of the commercial high temperature austenitic steels HK40, HK30 and Alloy 800H investigated in the high temperature range of 900-1000 degrees C is shown to deviate in various aspects from the conventional behaviour. This can be analyzed conveniently by using a log true strain rate - true strain plot. It is found that mechanisms responsible for creep rate irregularities are the process of particle ripening, the early formation of creep damage and environment + metal interactions.

Additional information

Authors: GUTTMANN V JRC PETTEN ESTAB. (THE NETHERLANDS) BUERGEL R BROWN, BOVERI AND CIE, MANNHEIM (GERMANY) , JRC PETTEN ESTAB. (THE NETHERLANDS);BROWN, BOVERI AND CIE, MANNHEIM (GERMANY)
Bibliographic Reference: 4TH RISOE INTERNATIONAL SYMPOSIUM ON METALLURGY AND MATERIALS SCIENCE, ROSKILDE (DENMARK), SEPT. 5-9, 1983, SEE PROCEEDINGS: "DEFORMATION OF MULTI-PHASE AND PARTICLE CONTAINING MATERIALS", 1983, PP. 269-278, PUBLISHED BY RISOE NATIONAL LABORATORY, P.O. 49
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