ROOM TEMPERATURE CREEP OF MERCHANT STEEL.
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The implications of creep-fatigue interactions in metal at low homologous temperatures are just beginning to emerge in the literature. Fatigue is well documented but published creep data are limited. Creep data at room temperature for merchant steel are presented in this paper for the first time. A transition from a stable to an unstable creep response is observed at an applied stress level which is below the ultimate strength of the material. Creep is experimentally observed to asymptotically approach a logarithmic response which appears to be independent of the applied stress level provided the applied stress is greater than the lower yield strength.
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