Registration Number
0222U003167,
0119U100749
, R & D reports
Title
Multifunctional protective coatings on metals and alloys for military and civilian use
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Head
Khyzhniak Viktor G., Доктор технічних наук
Registration Date
19-02-2022
Organization
National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"
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The wokr is devoted to the solution of an important scientific and technical problem: development of scientific bases of creation of multicomponent coatings with barrier layers which structure includes chromium carbides, titanium carbide, titanium nitride, intermetallics of aluminium, chromium and titanium. The resulting coatings combine the required performance properties of some components (wear resistance, heat and corrosion resistance) with the barrier functions of others.
It is established that on the studied alloys barrier layers can be obtained: by chromium plating, with the formation of chromium carbides layers (U8A steel); physical deposition from the gas phase of TiN (U8A steel, 9HS); nitriding followed by titanium alloying (U8A steel, VK8 hard alloy); formation of the TiN barrier layer during chromium aluminizing on BT6 titanium alloy.
The influence of barrier layers based on chromium carbides, titanium nitride on the structure, phase and chemical compositions of titanium-alloy, chromium-titanium alloy, chromium alloy coatings obtained on the surface of the studied alloys was investigated. The mechanisms of their formation are offered.
The physical-chemical properties of the obtained coatings were studied: micro-hardness, wear resistance, heat and corrosion resistance.
Keywords: U8A carbon steel, 9HS alloy steel, VT6 titanium alloy, VK8 solid alloy, diffusion metallization, barrier layers, coatings, aluminizing, chroming, aluminium chroming, chromium-aluminizing, chromium titanium-aluminizing, phase composition, chemical composition, structure, micro-hardness, heat resistance, corrosion resistance, wear resistance in the conditions of friction and sliding.
Product Description
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Arshuk Marina V
Bobina Maryna M
Loskutova Tatiana Volodymyrivna
Pogrebova Inna Sergiyvna
Solovar Oleksii M
Yakovchuk Kostyantyn Yu
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2022-03-09
