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Information × Registration Number 0213U000690, 0110U004563 , R & D reports Title Development of forming technology of functional surface layers on the details of fastening from the VT22 titanium alloy for providing of enhanced performance level popup.stage_title Head Fedirko Victor, Registration Date 06-03-2013 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 The possibility of modifying the surface layers of titanium alloy VT22 oxidation, nitriding and oksynitruvannyam rarefied gas from a controlled environment in a temperature-time range of aging and their influence on the mechanical properties of the metal. Found that oxidation and oksynitruvannya (surface hardness 6500 ... 7200 MPa, the depth of hardened zone 25 ... 35 mm, film thickness 0.01 ... 0.03 mm) provides corrosion protection surface improves znosotryvkist alloy VT22 paired with D16 under the influence korozyvnoho environment (3% NaCl), reducing friction by 25 ... 38%. By results of researches, found that most fretynhostiykist paired friction "VT22 alloy - alloy D16T" provides oksynitruvannya combination with drawing antifriction coating based on MoS2 VAP-2, which allows the development of fretting avoid adhesion component and grip. The complex laboratory studies of metal experimental batch of bolts manufactured by IMP developed in Nano technology thermomechanical processing and transferred PhMI. Pre hardened bolts zistaryuvaly (T = 645 ± 5 ? C, t = 8 h) while oksynitruvannyam metal surface on the proposed technological scheme. Found that this chemical-heat treatment, provides a balance tribological, corrosion, and fatigue characteristics of strength, and in combination with coating VAP-2 significantly increases fretynhostiykist metal paired with aluminum alloy D16T corresponding operating conditions fastening aircraft structures and corrosion resistance under the contact corrosion VT22 alloy D16T. Recommended to combine the processes of aging and modification (oksynitruvannya) surface in a single technological cycle thermomechanical processing haryachevysadnyh bolts alloy VT22 and suggests appropriate flowsheet WHO using vacuum thermal equipment SE "Antonov". The developed scheme WHO conducted an experimental batch haryachevysadnyh bolts alloy VT22, who transferred to stand trial on SE "Antonov". Product Description popup.authors Лук'яненко Олександр Геннадійович Пічугін Анатолій Тимофійовмич Погрелюк Ірина Миколаївна popup.nrat_date 2020-04-02 Close