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Information × Registration Number 0202U000655, 0199U002749 , R & D reports Title Inverse phase transformation and short-range atomic order investigation in iron-nitrogen based alloys and development of physical principles for alloying of high-strength functional steels popup.stage_title Head Gavrylyuk Valentyn Genadiyevych, Доктор технічних наук Registration Date 20-02-2002 Organization Institute for metal physics NAS Ukkraine popup.description2 Correlation between electron structure, short-range atomic order and properties of shape memory and damping in iron-based alloys was investigated. It is determined that an increase of concentration of free electrons promotes a short-range atomic ordering while localization of free electrons generates a decomposition of solid solution. It is proved that Ni, Si, Al, N promote an atomic ordering and facilitate a mobility austenitic-є-martensite interface boundaries, which controls a shape memory effect and a damping. While Cr, Mn, Mo, C generates a short-range disodering and a klastering. It is shown that the nitrogen alloying improves a value of inverse deformation, increases recovery stress in Fe-Mn-Si alloys and increases a damping capacity in Fe-Mn alloys.The Fe-N based alloy with high strength, a shape memory and a damping characteristics was developed. The Ukrainian and Russian patents are taken out. The application for European patent is given. The concept of correlation between electron stractur e, short-range atomic order and mobility interface boundaries is applied to development of alloys showing magnetic shape memory effect. Product Description popup.authors popup.nrat_date 2020-04-02 Close