UDK 539.21 (06)
PROPERTIES OF QUASICRYSTALLINE Al-Cu-Fe COATINGS PREPARED BY PLASMA SPRAYING
A. A. Lepeshev2,3, I. V. Karpov1,2, A. V. Ushakov1,2, P. V. Zelenkov1, L. Yu. Fedorov2*
1 Reshetnev Siberian State Aerospace University 31, Krasnoyarsky Rabochy Av., Krasnoyarsk, 660037, Russian Federation 2 Siberian Federal University 79, Svobodny Av., Krasnoyarsk, 660041, Russian Federation 3 Krasnoyarsk Scientific Center, SB RAS 50, Akademgorodok, Krasnoyarsk, 660036, Russian Federation *E-mail: sfu-unesco@mail.ru
The physical, mechanical, and tribological properties of quasicrystalline coatings based on the Al65Cu23Fe12 alloy prepared by plasma spraying have been investigated. The specific features of the phase formation due to the competitive interactions of the icosahedral ψ and cubic β phases have been elucidated. Сorrelation between the microhardness and the content of the icosahedral phase in the coating has been determined. The decisive role of the quasicrystalline phase in the formation of high tribological characteristics of the coatings has been revealed and tested.
Keywords: quasicrystalline alloys, tribological tests, icosahedral phases, microhardness, plasma spraying.
References

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Lepeshev Anatoly Aleksandrovich – Dr. Sc., Lead researcher, Siberian Federal University. E-mail: alepeshev@yandex.ru.

Karpov Igor Vasil'evich – Cand. Sc., Senior Researcher; Siberian Federal University. E-mail: karpovsfu@mail.ru.

Ushakov Anatoly Vasil'evich – Cand. Sc., Docent, Senior Researcher; Reshetnev Siberian State Aerospace University. E-mail: ushackov@mail.ru.

Zelenkov Pavel Viktorovich – Cand. Sc., Docent, Vice-Rector for IKNR; Reshetnev Siberian State Aerospace University. E-mail:zelenkow@rambler.ru.

Fedorov Leonid Yur'evich – graduate student, junior researcher; Siberian Federal University. E-mail: 1401-87@mail.ru.