The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Purpose: The purpose of the paper is to characterize the low cycle fatigue of high - chromium martensitic GX12CrMoVNbN9-1 cast steel from the perspective of the strain and energy criterion. Design/methodology/approach: The tests of fatigue strength within the scope of small amount of cycles to failure at room temperature and elevated temperature (400, 550 and 600°C) were carried out on GX12CrMoVNbN9-1...
The paper deals with the investigation of secondary phases evolution during quenching, quenching and tempering in the high – chromium martensitic GX12CrMoVNbN9-1 (GP91) cast steel. It also includes the analysis of evolution of secondary phases in the as - cast condition and after stress relief annealing at the temperature of 750°C of the tempered GP91 cast steel.
Purpose: The purpose of the paper is to characterise low cycle fatigue of high – chromium martensitic 9%Cr cast steel for advanced steam power plants. Design/methodology/approach: The research on fatigue life within the scope of small amount of cycles to failure at room temperature was carried out on high - chromium, martensite GX12CrMoVNbN9-1 cast steel. Fatigue tests were performed for the assumed...
Purpose: The paper presents the influence of heat treatment parameters (austenitization and tempering temperature) on the microstructure and mechanical properties of high - chromium martensitic GX12CrMoVNbN9-1 (GP91) cast steel. Moreover, the influence of stress relief annealing at the temperatures of 730 and 750oC on microstructure and properties has been investigated. Design/methodology/approach:...
Purpose: Influence of austenitiziation parameters (temperature and time) on grain size and mechanical properties of low alloy cast steel have been investigated. Design/methodology/approach: The grain size of former austenite was determined by Image Pro Plus software and its distribution by STATISTICA software. The fractography was characterized using TEM. Moreover, mechanical properties (impact energy...
Purpose: Investigation of low alloy Cr–Mo–V cast steel after long – term operation and regenerative heat treatment. Design/methodology/approach: Micro structural investigations were carried out using transmission electron microscopy. Findings: The microstructure and carbide types after long – term operation and after regenerative heat treatment (including bainitic hardening with high tempering temperature)...
Purpose: of the paper was to design the optimal parameters of regenerative heat treatment of G21CrMoV4-6 (L21HMF) cast steel after long-term serviced at elevated temperature. Design/methodology/approach: The data obtained from dilatometric curves were used to determine the optimal cooling rates leading to acquire the bainite microstructure with the ferrite amount lower than 10%. Structures were investigated...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.