Registration Number
0225U001809,
(0122U001218)
, R & D reports
Title
Technological fundamentals of forming new composite materials and coatings based on titanium, chromium, and aluminum borides to operate in corrosive mediums
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Технологічні основи формування нових композиційних матеріалів і покриттів на основі боридів титану, хрому, алюмінію для роботи в умовах агресивних корозійних середовищ
Head
Umanskyi Oleksandr P., Доктор технічних наук
Registration Date
08-02-2025
Organization
Frantsevich Institute for Problems of Materials Science National Academy of Science of Ukraine
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The purpose of the work is to develop new composite materials and coatings based on titanium, chromium, and aluminum borides with a high level of oxidation resistance in corrosive mediums and at high temperatures to protect machine parts of chemical equipment, hydropower and heat-power engineering
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During the research work a composite material AlB12–50 wt.% Al was obtained. High-temperature oxidation in air of the ceramic material AlB12, as well as cermet AlB12–50 wt.% Al and coatings based on it at T=500–1000 °C was carried out. Coatings on samples from Steel 45 at T=500 °C practically do not oxidize. With an increase in temperature to 1000 °C, the mass gain per unit area (Δm/S) increases to 7.955 mg/cm2 and the oxidation process noticeably intensifies at 800 °C. While samples from Steel 45 without a coating begin to oxidize intensively starting from 600 °C and the mass gain at 1000 °C is Δm/S=47.098 mg/cm2. The results obtained indicate the feasibility of using electrospark coating from the material AlB12–50 wt.% Al to protect parts from Steel 45 not only from wear but also from high-temperature oxidation at temperatures up to 1000 °C. It was established that cermets of the (Ti,Cr)B2–NiAlCr system and coatings based on them have high heat resistance up to 1000 °C and ceramic materials of the AlN–(Ti,Cr)B2 system retain high heat resistance up to 1450–1550 °C. Coatings based on materials of the (TiB2–SiC)–(Ni–Cr) system have high resistance in aggressive corrosive environments, in particular sea water. The developed materials and coatings are promising for strengthening and restoring a wide class of machine and mechanism parts operating under conditions of high-temperature oxidation and electrochemical corrosion.
Product Description
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Olenа M. Poliarus
Maryna S. Storozhenko
Sheludko Volodymyr Ye.
Karpenko Serhii V.
Kushchev Oleksii V.
Bondarenko Oleksii A.
Chernatska Viktoriia Yu.
Khrystov Volodymyr H.
Martseniuk Iryna S.
Haltsov Kostiantyn M.
Syrovatka Viacheslav L.
Umanskyi Oleksandr P.
Konoval Volodymyr P.
Leontiev Dmytro K.
Karetko Halyna V.
Tereshchenko Victor S.
Terentiev Oleksandr Ye.
Hubin Yurii V.
Chernyshov Oleksandr O.
Valeriy B. Murotov
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2025-02-08
