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The paper presents the results of research on low cycle properties of high-chromium martensitic GX12CrMoVNbN9-l (GP91) cast steel. The tests of fatigue strength were carried out at two temperatures: room temperature and at 600 degrees centigrade. At both temperatures the occurrence of cyclic softening of the cast steel was observed, revealing no clear stabilization period. Moreover, it has been proved...
Przedstawiono badania trwałości zmęczeniowej w zakresie małej liczby cykli obciążenia wysokochromowego, martenzytycznego staliwa GX12CrMoVNbN9-1 (GP91). Badania przeprowadzono w dwóch temperaturach: temperaturze pokojowej i 600oC przy amplitudzie odkształcenia w zakresie 0.25 - 0.60%. W obu temperaturach stwierdzono występowanie cyklicznego osłabienia badanego staliwa bez wyraźnego okresu stabilizacji...
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