Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 2 of 2 for “"Aços HP"”.
-
Caracterização por ensaios magnéticos não destrutivos de aços HP provenientes de fornos de reforma
… different aging stages to which are submitted HP austenitic steel tubes when operating in oil industry's reformer furnaces. The assumption adopted here is that aging causes microstructural transformations that modify their magnetic properties. The eddy currents technique and a permanent …
-
Caracterização microestrutural em função da temperatura de serviço de tubos de aços HP-Modificados ao Nb e Ti envelhecidos em fornos de reforma a vapor
… tubes, which are currently manufactured with HP-Nb and HP-NbTi steels. The service temperature of these tubes causes different degrees of metallurgical aging along their lengths. The purpose of the present work is to characterize the aging of these steels at different temperatures, taking into …