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Information × Registration Number 0214U007716, 0112U002790 , R & D reports Title Physical-chemical bases of increasing cyclic and static durability of products made of titanium alloys with surface layers gradient hardening of the (O, N, C) interstitial elements' by thermal diffusion saturation popup.stage_title Head Fedirko Viktor, Registration Date 13-01-2015 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 It is shown that the enhancement of the surface layer thermo diffusion saturation with controlled gas environment containing oxygen, nitrogen or carbon increases the fracture resistance of VT1-0, VT5-1, PT-7M and OT4-1 titanium alloys for cyclic and long static loading, depending on the level of strengthening (K) and hardened zone depth (l). Dependence is extreme character with a maximum at an 'optimal' of interstitial solid solution strengthening (Kopt. and lopt.). First time was shown the universal increasing of fatigue durability of titanium alloy samples not only for oxygen saturation, but also implementing other impurities (N , C) in certain ratios K and l. Experimentally reproducible effect of increasing the durability of VT1-0, VT5-1, PT-7M, OT4-1 titanium alloys strengthened with the 'optimal' level (Kopt.) surface layer under different loading conditions: for pure bending, by rotating bending; under cyclic tension and long static loading on the basis of 1000 hours. Product Description popup.authors Баранецький Володимир Степанович Кравчишин Тарас Миронович Кудлак Степан Михайлович Лопушанський Василь Антонович Лук'яненко Олександр Геннадійович Матичак Ярослав Степанович Погрелюк Ірина Миколаївна Проскурняк Роман Васильович Ткачук Олег Васильович Труш Василь Степанович Щепанський Ярослав Степанович Яськів Олег Ігорович popup.nrat_date 2020-04-02 Close