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Actual Problems in Machine Building. Vol. 4. N 1. 2017

Materials Science

in Machine Building

____________________________________________________________________

98

Кукареко, А.В. Белый, М.А. Белоцерковский, А.Н. Григорчик // Трение и износ. – 2015. – Т.

36, № 6. – С. 661–670.

3.

Белоцерковский М.А.

Технологии активированного газопламенного напыления

антифрикционных покрытий. – Минск: Технопринт, 2004. – 200 с.

4.

Белый А.В., Кукареко В.А., Патеюк А.

Инженерия поверхностей конструкционных

материалов концентрированными потоками ионов азота. – Минск: Белорусская наука, 2007.

– 244 с.

5. Особенности формирования модифицированного азотом слоя при ионно-лучевой

обработке гиперзвукового газотермического покрытия из аустенитной стали / А.Н.

Григорчик, В.А. Кукареко, А.В. Белый, М.А. Белоцерковский // Поверхность. Рентгеновские,

синхротронные и нейтронные исследования. – 2016. – № 7. – С. 41–46.

CONCENTRATION INHOMOGENEITY OF THE NITRIDING LAYERS IN THERMAL

SPRAYED COATINGS SUBJECTED ION-BEAM TREATMENT

Belotserkovskii M.A.,

D.Sc.

(Engineering), Associate Professor, e-mail:

mbelotser@gmail.com

Grigorchik A.N.,

Senior Researcher, e-mail:

Grigorchik_a_n@mail.ru

Kukareko V.A.,

D.Sc

. (Physics and Mathematics), Associate Professor,

e-mail:

v_kukareko@mail.ru

The State Scientific Institution “Joint Institute of Mechanical Engineering of the National Academy

of Sciences of Belarus”, 12 Akademicheskaya st., Minsk, 220072, Republic of Belarus

Abstract

Structural-phase state of thermal spray coatings from high-chromium martensitic steel 40h13 in

the initial state and ion-beam nitriding at 870 K was investigated. It was found that ion-beam

treatment nitrogen leads to the formation of modified layers of variable depth repeating the relief of

the sprayed particles. Inference, that oxide layers disposed on the boundaries of the sprayed

particles are barriers to the diffusion of nitrogen in deep coating layers, that leads both to the

concentration inhomogeneity of nitrogen distribution in the surface layers of the coatings and to the

scatter in the values of microhardness.

Keywords

thermal spray coating, ion-beam nitriding, concentration nitrogen, oxide layers