Abstract: 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.Keywords: trdota, mikrotrdotaPublished in DKUM: 10.07.2015; Views: 618; Downloads: 21 Link to full text
Keywords: defect size fatigue strength, damageability, heat-affected zonePublished in DKUM: 10.07.2015; Views: 1066; Downloads: 25 Link to full text
Keywords: railway axle, impact toughness, damageabilityPublished in DKUM: 10.07.2015; Views: 974; Downloads: 41 Link to full text
Abstract: 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.Keywords: impact toughness, in-serice damage, railway axle, undercutPublished in DKUM: 01.06.2012; Views: 1197; Downloads: 91 Full text (554,44 KB)This document has many files! More...