Formation of porosity on the border «of heat-resistant alloy–heat-resistant condensation-diffusion coating»

Azarovskiy E.N., Doronin O.N., Muboyadzhyan S.A.
UDC
669.017:669.018.44
DOI
10.18577/2307-6046-2019-0-2-113-120
Article PDF (Russian) (702.63 KB)
How to cite
Azarovskiy E.N., Doronin O.N., Muboyadzhyan S.A. Formation of porosity on the border «of heat-resistant alloy–heat-resistant condensation-diffusion coating» // Proceedings of VIAM. 2019. No. 2. DOI: 10.18577/2307-6046-2019-0-2-113-120. URL: https://test.viam.ru/en/journal/2019/2/12
Keywords
heat-resistant nickel alloy, ion-plasma condensation-diffusion coating, diffusion processes, Kirkendall effect, microstructure, scanning electron microscopy.
Abstract

Studies of the formation of porosity at the boundary «of the ZhS26 heat-resistant alloy–a heat-resistant condensation-diffusion coating» – have been carried out. An ion-plasma heat-resistant condensation-diffusion coating of the NiCoCrAlY+AlNiY system (SDP-4+VSDP-16) with different thicknesses of the condensed layer made of SDP-4 alloy (19; 38 and 76 µm) with the same thickness of the layer of alloy VSDP-16 (17 µm). Part of the coated samples was subjected to vacuum thermal diffusion annealing according to standard technology.Investigations of samples in the initial state and samples after vacuum annealing were carried out, their microstructures were shown, and the results of micro X-ray analysis (MRCA) were given.It is shown that on samples of a heat-resistant alloy ZhS26 with a condensed coating SDP-4 with thicknesses of 19 and 38 μm in the vacuum annealing process at the boundary «of the heat-resistant alloy ZhS26–a heat-resistant condensation-diffusion coating» of the system SDP-4+VSDP-16 forms a pore chain. «On sample ZhS26 with a condensed coating SDP-4 76 μm thick, pores are not formed on the «alloy–coating» interface.

Reference list
  1. Kablov E.N. Razrabotki VIAM dlya gazoturbinnykh dvigateley i ustanovok [Development of VIAM for gas turbine engines and installations] // Krylya Rodiny. 2010. №4. S. 31–33.
  2. Kablov E.N. Sovremennyye materialy – osnova innovatsionnoy modernizatsii Rossii [Modern materials - the basis of innovative modernization of Russia] // Metally Evrazii. 2012. №3. S. 10–15.
  3. Kablov E.N., Petrushin N.V., Svetlov I.L., Demonis I.M. Nikelevye litejnye zharoprochnye splavy novogo pokoleniya [Nickel foundry heat resisting alloys of new generation] // Aviacionnye materialy i tehnologii. 2012. №S. C. 36–52.
  4. Muboyadzhyan S.A., Kablov E.N., Budinovskiy S.A. Vakuumno-plazmennaya tekhnologiya polucheniya zashchitnykh pokrytiy iz slozhnolegirovannykh splavov [acuum-plasma technology for producing protective coatings from complex alloyed alloys] // Metallovedeniye i termicheskaya obrabotka metallov. 1995. №2. S. 15–18.
  5. Kolomytsev P.G. Gazovaya korroziya i prochnost nikelevykh splavov [Gas corrosion and strength of nickel alloys]. M.: Metallurgiya, 1984. 215 s.
  6. Kashin D.S., Stehov P.A. Razrabotka kompleksnyh zharostojkih pokrytij dlya detalej iz estestvenno-kompozicionnogo materiala na osnove niobiya [Development of combined heat-resistant coatings for parts made of natural-composite material based on niobium] // Trudy VIAM: elektron. nauch.-tehnich. zhurn. 2017. №6 (54). St. 4. Available at: http://www.viam-works.ru (accessed: December 11, 2018). DOI: 10.18577/2307-6046-2017-0-6-4-4.
  7. Sposob obrabotki poverkhnosti metallicheskogo izdeliya: pat. 2368701 Ros. Federatsiya [The method of surface treatment of metal products: pat. 2368701 Rus. Federation]; opubl. 27.09.09.
  8. Sposob naneseniya kombinirovannogo zharostoykogo pokrytiya: pat. 2402633 Ros. Federatsiya [Method of applying a combined heat-resistant coating: Pat. 2402633 Rus. Federation]; opubl. 27.10.10.
  9. Budinovskiy S.A., Muboyadzhyan S.A. Effektivnost dvukhstadiynoy ionno-plazmennoy tekhnologii polucheniya legirovannykh diffuzionnykh alyuminidnykh pokrytiy na zharoprochnykh nikelevykh splavakh [Efficiency of two-stage ion-plasma technology for producing doped diffusion aluminide coatings on heat-resistant nickel alloys] // Metallovedeniye i termicheskaya obrabotka metallov. 2003. №5. S. 27–32.
  10. Loshchinin Yu.V., Budinovskiy S.A., Razmakhov M.G. Teploprovodnost teplozashchitnykh legirovannykh oksidami RZM pokrytiy ZrO2–Y2O3, poluchennykh magnetronnym naneseniyem [Heat conductivity of heat-protective coatings ZrO2–Y2O3 alloyed by REM oxides obtained by magnetronny application] // Aviacionnye materialy i tehnologii. 2018. №3 (52). S. 42–49. DOI: 10.18577/2071-9140-2018-0-3-42-49.
  11. Matveev P.V., Budinovskij S.A. Issledovanie svojstv zashhitnyh zharostojkih pokrytij dlya intermetallidnyh nikelevyh splavov tipa VKNA dlya rabochih temperatur do 1300°C [Research of the properties of protective heat-resistant coating for intermetallic nickel alloys operating at temperatures up to 1300°C] //Aviacionnye materialy i tehnologii. 2014. №3. S. 22–26.
  12. Muboyadzhyan S.A., Budinovskij S.A. Ionno-plazmennaya tehnologiya: perspektivnye protsessy, pokrytiya, oborudovanie [Ion-plasma technology: prospective processes, coatings, equipment] // Aviacionnye materialy i tehnologii. 2017. №S. S. 39–54. DOI: 10.18577/2071-9140-2017-0-S-39-54.
  13. Chubarov D.A., Matveev P.V. Novye keramicheskie materialy dlya teplozashhitnyh pokrytij rabochih lopatok GTD [New ceramic materials for thermal barrier coating using in GTE turbine blades] // Aviacionnye materialy i tehnologii. 2013. №4. S. 43–46.
  14. Budinovskij S.A., Smirnov A.A., Matveev P.V., Chubarov D.A. Razrabotka teplozashhitnyh pokrytij dlja rabochih i soplovyh lopatok turbiny iz zharoprochnyh i intermetallidnyh splavov [Development of thermal barrier coatings for rotor and nozzle turbine blades made of nickel-base super- and intermetallic alloys] // Trudy VIAM: elektron. nauch.-tehnich. zhurn. 2015. №4. St. 05. Available at: http://www.viam-works.ru (accessed: December 11, 2018). DOI: 10.18577/2307-6046-2015-0-4-5-5.
  15. Smirnov A.A., Budinovskij S.A., Matveev P.V., Chubarov D.A. Razrabotka teplozashhitnyh pokrytij dlya lopatok TVD iz nikelevyh monokristallicheskih splavov VZhM4, VZhM5U [The development of thermal barrier coatings for turbine blades of single-crystal nickel alloys VZHM4, VZHM5U] // Trudy VIAM: elektron. nauch.-tehnich. zhurn. 2016. №1. St. 03. Available at: http://www.viam-works.ru (accessed: September 23, 2016). DOI: 10.18577/2307-6046-2016-0-1-17-24.
  16. Mokrov A.P., Zharkov V.M. Vzaimnaya diffuziya i effekt Kirkendalla v sisteme niobiy–vanadiy [Mutual diffusion and the Kirkendall effect in the niobium – vanadium system] // Diffuzionnyye protsessy v metallakh. Tula: TPI, 1974. Vyp. 2. S. 39–49.
  17. Geguzin Ya.E. Ocherki o diffuzii v kristallakh [Essays on diffusion in crystals]. M: Nauka, 1974. 254 s.
  18. Krishtal M.A., Vyboyshchik M.A., Levin D.M. Obrazovaniye dislokatsiy v diffuzionnoy zone i diffuziya po dislokatsiyam [Formation of dislocations in the diffusion zone and diffusion along dislocations] // Diffuzionnyye protsessy v metallakh. Tula: TPI, 1973. S. 184–210.
  19. Kablov E.N. Materialy novogo pokoleniya – osnova innovatsiy, tekhnologicheskogo liderstva i natsionalnoy bezopasnosti Rossii [Materials of the new generation - the basis of innovation, technological leadership and national security of Russia] // Intellekt i tekhnologii. 2016. №2 (14). S. 16–21.
  20. Budinovskiy C.A., Kablov E.N., Muboyadzhyan C.A. Primeneniye analiticheskoy modeli opredeleniya uprugikh napryazheniy v mnogosloynoy sisteme pri reshenii zadach po sozdaniyu vysokotemperaturnykh zharostoykikh pokrytiy dlya rabochikh lopatok aviatsionnykh turbin [Application of analytical model of determination of elastic stresses in multi-layer system at the solution of tasks on creation of high-temperature heat resisting coverings for working blades of aviation turbines] // Vestnik MGTU im. Baumana. Ser.: Mashinostroyeniye. 2011. №SP2. S. 26–37.