Opis: The influence of temperature on impact toughness of operational 12Kh1MF steel of steam superheater collector of TP-100 type boiler was investigated. It was established, that with the increase of temperature from 20 to 200 °C the impact toughness increases and in further reaches the plateau. Main dependencies of changes of steel microhardness along the thickness of collector pipe taking into consideration the distance from opening were revealed.Ključne besede: trdota, mikrotrdotaObjavljeno v DKUM: 10.07.2015; Ogledov: 618; Prenosov: 21 Povezava na celotno besedilo
Ključne besede: defect size fatigue strength, damageability, heat-affected zoneObjavljeno v DKUM: 10.07.2015; Ogledov: 1066; Prenosov: 25 Povezava na celotno besedilo
Ključne besede: railway axle, impact toughness, damageabilityObjavljeno v DKUM: 10.07.2015; Ogledov: 974; Prenosov: 41 Povezava na celotno besedilo
Opis: The influence of temperature and specimens undercut place on impact toughness of railway axle material in service is investigated. The obtained results show inversely proportional dependence of impact toughness on undercut radius of specimens. The decrease of test temperature from +20 to –40 ºC decreases significantly the impact toughness and portion of ductile fracture.Ključne besede: impact toughness, in-serice damage, railway axle, undercutObjavljeno v DKUM: 01.06.2012; Ogledov: 1197; Prenosov: 91 Celotno besedilo (554,44 KB)Gradivo ima več datotek! Več...