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Information × Registration Number 0304U002214, 0103U000107 , R & D reports Title Development and investigation of the principle bases of alloing in ferrite high-temperature steels for metalcomposite metrices and production of different application popup.stage_title Аналіз принципів легування феритних сталей Head Olshanetsky Vadim, Registration Date 23-02-2004 Organization Zaporizhzhia National Technical University popup.description2 The object of research are ferrite steels with 6-25 % Cr. The aim of the work is the creation of new alloying principles of high-chromium ferrite (HCF) to completely remove the polimorphic transformation in it and to obtain the steels with purely ferritic structure, high weldability and other necessary properties. Methods of investigation which have been used: optical metallography, X-rays structure analysis, dilatometeric researches, mechanical tests. Results of the work: the peculiarity of solution character of interstitial elements in the high-chromium ferrite in the temperature range (650-1300 °C) have been established; the quantitative estimation of grain-boundary segregation enrichment by interstitial atoms cerium, carbon and nitrogen have been done; the optimal alloying levels (by aluminum and silicon) of corrosion-resistant steel on the base of 20 % Cr with homogeneous ferritic structure have been established. Range of application is aero-spase and machine-building industry. Product Description popup.authors popup.nrat_date 2020-04-02 Close