Control of the Structure of Diffusion Layer in Carbon Steels Under Nitriding with Preliminary Deposition of Copper Oxide Catalytic Films


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Аннотация

The effect of thin films of copper oxide deposited before nitriding on the phase composition and the kinetics of growth of diffusion layers in carbon steels is considered. The process of formation of an oxide film involves chemical reduction of pure copper on the surface of steel specimens from a salt solution and subsequent oxidation under air heating. The oxide film exerts a catalytic action in nitriding of low- and medium-carbon steels, which consists in accelerated growth of the diffusion layer, the nitride zone in the first turn. The kinetics of the nitriding process and the phase composition of the layer are controlled by the thickness of the copper oxide precursor, i.e., the deposited copper film.

Авторлар туралы

L. Petrova

Moscow Automobile and Road Construction State Technical University (MADI)

Хат алмасуға жауапты Автор.
Email: petrova_madi@mail.ru
Ресей, Moscow

V. Aleksandrov

Moscow Automobile and Road Construction State Technical University (MADI)

Email: petrova_madi@mail.ru
Ресей, Moscow

A. Malakhov

Moscow Automobile and Road Construction State Technical University (MADI)

Email: petrova_madi@mail.ru
Ресей, Moscow

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