Aspects of Creating Multilayer Coatings by Plasma Spraying-Reference-Cited by-同舟云学术

Aspects of Creating Multilayer Coatings by Plasma Spraying

Published:2023-06-05 Issue:3 Volume:22 Page:179-185
ISSN:2414-0392
Container-title:Science & Technique
language:
Short-container-title:Nauka teh.

Author:

Panteleenko F. I.¹,Okovity V. A.¹,Devoino O. S.¹,Litvinko A. A.¹,Okovity V. V.¹,Astashinsky V. M.²,Blumenstein V. M.³

Affiliation:

1. Belarusian National Technical University

2. A. V. Luikov Heat and Mass Transfer Institute of NAS of Belarus

3. Kuzbass State Technical University named after T. F. Gorbachev

Abstract

In the work, taking into account the state of the issue in the field of applying multilayer heat-shielding and wear-resistant coatings, directions of research are substantiated. The objectives of the development are: improvement of powder materials containing zirconium dioxide partially stabilized with yttrium oxide for plasma deposition of heat-shielding coa-tings; improvement of powder materials containing oxide ceramics and nickel-based alloys for plasma deposition of wear-resistant coatings; development of technological parameters of plasma spraying and subsequent processing by the effects of compression plasma on the coating; analysis of the quality of protective coatings obtained using the optimal technology by studying their structure and physical and mechanical properties. The ZrO2 – 7 % Y2O3 particles contain the predominant tetragonal Y0.15Zr0.85O0.93 phase, monoclinic and cubic ZrO2 phases, and the Al2O3–TiO2–Ni–Cr–Al–Y–Ta composition contains the Cr1.12Ni2.88 phase of the nickel-based solid solution, the a-Al2O3, g-Al2O3 phases, and the orthorhombic phase of titanium oxide TiO2 that contribute to its wear resistance. subsequent optimization of technological parameters for the process of plasma spraying of multilayer heat-shielding and wear-resistant coatings. Technological parameters for the process of plasma spraying of multi-layer heat-shielding and wear-resistant coatings are investigated with subsequent optimization. The optimization criteria were the utilization factor of the sprayed powder material and the structure of the coatings. The influence of the spraying distance on the values of operational characteristics of the formed plasma coatings on Al2O3–TiO2–Ni–Cr–Al–Y–Ta has been studied. The obtained results of controlling the phase composition of coatings by varying the chemical composition of powder materials are presented. In the process of deposition, the differences in the phase composition of the formed material are the more significant, the more inhomogeneous the distribution of elements in the initial powder material. Tests have been carried out for cyclic testing in an oven at a maximum temperature within 1300 °C of heat-shielding coatings to determine their heat resistance. They proved the influence of the phase composition of the formed coatings on their ability to withstand high-temperature oxidation.

Publisher

Belarusian National Technical University

Subject

General Medicine

Reference11 articles.

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