The effect of certain factors on the formation of heat-resistant, heat-protective, coatings

Refractories ◽  
1965 ◽  
Vol 6 (7-8) ◽  
pp. 415-419
Author(s):  
L. D. Svirskii ◽  
Yu. A. Pirogov
Keyword(s):  
Protective Coatings ◽  
Heat Resistant

Effect of protective coatings on mechanical properties of ZhS32-VI heat-resistant alloy

2010 ◽  
Vol 42 (3) ◽  
pp. 352-361 ◽  
Author(s):  
K. Yu. Yakovchuk ◽  
Yu. É. Rudoi ◽  
E. V. Onoprienko ◽  
V. G. Malysheva
Keyword(s):  
Mechanical Properties ◽  
Protective Coatings ◽  
Heat Resistant Alloy ◽  
Resistant Alloy ◽  
Heat Resistant

Influence of protective coatings on the thermocyclic life of a nickel-base heat-resistant alloy

1987 ◽  
Vol 19 (12) ◽  
pp. 1597-1602
Author(s):  
G. N. Tret'yachenko ◽  
C. R. Semenov ◽  
K. Yu. Yakovchuk ◽  
R. I. Kuriat ◽  
I. S. Malashenko ◽  
...  
Keyword(s):  
Protective Coatings ◽  
Heat Resistant Alloy ◽  
Resistant Alloy ◽  
Heat Resistant ◽  
Nickel Base

Glass Ceramic Protective Coatings for Gasostatic Treatment of Heat-Resistant Nickel Alloys

2015 ◽  
Vol 72 (3-4) ◽  
pp. 100-103
Author(s):  
V. A. Rozenenkova ◽  
S. S. Solntsev ◽  
D. V. Grashchenkov ◽  
N. A. Mironova
Keyword(s):  
Glass Ceramic ◽  
Nickel Alloys ◽  
Protective Coatings ◽  
Heat Resistant

Improving the properties of plasma heat-resistant coatings by means of spraying materials that reacting with exothermic effects

2021 ◽  
Vol 2 ◽  
pp. 51-55
Author(s):  
V. M. Gusev ◽  
◽  
O. Yu. Elagina ◽  
A. G. Buklakov ◽  
◽  
...  
Keyword(s):  
Thermal Cycling ◽  
Zirconium Oxide ◽  
Protective Coatings ◽  
Base Material ◽  
Single Layer ◽  
Oxide Powder ◽  
Flame Spraying ◽  
Exothermic Effect ◽  
Heat Resistant ◽  
Layer Coating

The quality of heat-resistant coatings deposited by flame spraying is largely determined by the adhesion of the coating to the surface of the part. One of the ways to increase adhesion is to deposition intermediate layers of thermosetting powders between the base material and the coating. In this work, two versions of heat-protective coatings are investigated — a two-layer coating consisting of an Al – Ni sublayer (20 – 80 wt. %) and a main ZrO2 layer, and a single-layer coating sprayed from an aluminum-clad zirconium oxide powder (20 ZrO2 – 80 Al, wt. % ). The method of differential thermal analysis was used to determine the temperature ranges and values of the exothermic effects of oxidation and redox reactions during heating of Al – Ni and ZrO2 clad powders. A significant exothermic effect was found during oxidation of the aluminum cladding shell in the temperature range of 360 °C and a stronger thermal effect due to the redox reaction at a temperature of 920 °C. The microstructure and microhardness of the obtained coatings have been studied, and their thermal conductivity and adhesion have been assessed. The resistance of the coatings during thermal cycling tests has been determined. It has been established that thermal protective coatings made of aluminum-clad zirconium oxide powder have the best characteristics under thermal cycling conditions. A higher level of adhesion and thermal cyclic resistance of such coatings are due to an increase in the enthalpy of aluminum-clad ZrO2 powders due to exothermic reactions and the presence of a metal binder.

Structural transformations in heat-resistant protective coatings on nickel alloys

1987 ◽  
Vol 29 (4) ◽  
pp. 302-307
Author(s):  
Yu. G. Veksler ◽  
V. P. Lesnikov ◽  
S. Ya. Paleeva ◽  
E. G. Lesnikova ◽  
G. F. Myal'nitsa
Keyword(s):  
Nickel Alloys ◽  
Protective Coatings ◽  
Structural Transformations ◽  
Heat Resistant

Thermal fatigue resistance of heat-resistant alloys with protective coatings

1980 ◽  
Vol 12 (4) ◽  
pp. 464-469
Author(s):  
S. Z. Bokshtein ◽  
N. G. Bychkov ◽  
R. A. Dul'nev ◽  
G. N. Zaitsev ◽  
�. Ya. Ol'shanskaya ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
Thermal Fatigue ◽  
Protective Coatings ◽  
Thermal Fatigue Resistance ◽  
Heat Resistant

Heat-resistant RuAl-based alloys. III. Powder alloys — mechanical alloying

2021 ◽  
Vol 11 ◽  
pp. 5-19
Author(s):  
K. B. Povarova ◽  
◽  
A. E. Morozov ◽  
A. A. Drozdov ◽  
A. V. Antonova ◽  
...  
Keyword(s):  
Mechanical Alloying ◽  
High Speed ◽  
Titanium Aluminides ◽  
Protective Coatings ◽  
Alloy Formation ◽  
Promising Candidate ◽  
Melting Temperatures ◽  
Heat Resistant ◽  
Cast Alloys ◽  
Temperature Time

Refractory (Tmelt = 2100 °C), heat-resistant ruthenium monoaluminide RuAl, lighter (ρ = 7.97 g/cm3) than Ni superalloys, is considered as a promising candidate material for operation at high temperatures and relatively low loads in high-speed gas oxidizing flows at temperatures higher not only operating temperatures, but also the melting temperatures of both nickel superalloys and nickel and titanium aluminides. RuAl is also an ideal candidate for potential protective coatings. In the first part of the article, RuAl-based cast alloys were considered. In the second part of the article, the possibilities of obtaining alloys based on RuAl directly from the initial powders of ruthenium and aluminum are considered by combining the temperature-time regimes of reaction alloy formation (RA), the sequence and intensity of pressure application during RA. The third part of the article is devoted to studying the possibilities of using powders doped with RuAl (NiAl, TiAl) of a given composition, obtained by mechanical alloying, as a starting material.

STUDY OF THE STRUCTURE AND PROPERTIES OF A HEAT-RESISTANT COATING AT HIGH-TEMPERATURE DEFORMATION OF SAMPLES FROM TITANIUM INTERMETALLIC ALLOY

2021 ◽  
pp. 61-70
Author(s):  
O.N. Doronin ◽  
◽  
D.S. Gorlov ◽  
E.N. Azarovsky ◽  
A.S. Kochetkov ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
High Temperature ◽  
Protective Coatings ◽  
Multilayer Coating ◽  
Residual Deformation ◽  
Plasma Coating ◽  
High Temperature Deformation ◽  
Temperature Deformation ◽  
Heat Resistant ◽  
High Level

In order to set up research works and determine the requirements for the promising options of protective coatings he paper studies an experimental version of a complex multilayer heat-resistant ion-plasma coating at high-temperature deformation of samples from an intermetallic titanium alloy. The article shows that at high values of residual deformation (up to 11%) of a base made of an intermetallic titanium alloy the multilayer coating is capable of providing sufficiently high level of protective properties.

Effect of protective coatings on the mechanical properties of heat-resistant alloys

1984 ◽  
Vol 16 (1) ◽  
pp. 120-124
Author(s):  
B. N. Guzanov ◽  
V. G. Sorokin ◽  
S. V. Kositsyn
Keyword(s):  
Mechanical Properties ◽  
Protective Coatings ◽  
Heat Resistant
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