Karakterizacija intermetalne prevlake Cu10tež.%Al naprskane atmosferskim plazma sprej postupkom

  • Mihailo R. Mrdak IMTEL komunikacije a.d.
Ključne reči: Wearing||, ||habanje, intermetallics||, ||intermetali, erosion||, ||erozija, corrosion||, ||korozija, Coatings||, ||prevlaka, cavitation||, ||kavitacija, Al||, ||Al, Abrasives||, ||abrazija,

Sažetak


Atmosferski plazma sprej je jedan od postupaka koji se koristi za depoziciju prevlaka otpornih na habanje usled trenja, erozije, kavitacije i korozije. U ovom radu, APS postupkom proizvedena je intermetalna prevlaka Cu10tež.%Al, koja je pouzdana za primenu u tribološkim okruženjima zbog kombinacije niske cene i izuzetne otpornosti na abraziju pri različitim uslovima rada. Cilj ovoga rada bio je da se izuče mehanička svojstva i struktura intermetalne prevlake Cu10tež.%Al i razvije efikasan metod za reparaciju i poboljšanje otpornosti lakih legura na habanje. Mnoge komponente od legure bakra imaju tendenciju da se degradiraju zbog korozivne sredine, trenja, erozije i kavitacije. Takve komponente mogu se spasti inženjerstvom površina sa primenom odgovarajućih prevlaka na površinama izloženim degradaciji. Tipična mikrostruktura prevlake za APS postupak je lamelarna u kojoj su prisutne mikropore, neistopljene čestice, međulamelarni oksidi i precipitati. Mehaničke karakteristike prevlake Cu10tež.%Al ispitane su merenjem mikrotvrdoće slojeva prevlake metodom HV0.3 i čvrstoće spoja metodom ispitivanja na zatezanje. Morfologija čestica praha i površina prevlake analizirana je na skening elektronskom mikroskopu (SEM). Analiza mikrostrukture prevlake urađena je uz korišćenje optičkog mikroskopa, a udeo mikropora određen je analizom mikrofotografija sa optičkog mikroskopa (OM).

 

Biografija autora

Mihailo R. Mrdak, IMTEL komunikacije a.d.
doktor tehničkih nauka

Reference

Alloy Phase Diagrams 1992. ASM International, Metals Park. Volume 3.

Altuncu, E., Iriç, S., & Ustel, F. 2012. Wear - resistant intermetallic arc spray coatings. Materiali in tehnologije / Materials and technology, 46(2), pp.181-183.

Aluminum Bronze Thermal Spray Powders Thermal Spray Powder Products Metco 445, DSMTS-0103.0 2012. Sulzer Metco. Material Product Data Sheet.

Bartuli, C., Valent, T., Casadei, F., & Tului, M. 2007. Advanced thermal spray coatings for tribological applications, Proceedings of the Institution of Mechanical Engineers, Part L. Journal of Materials: Design and Applications, 221, pp.175-185.

Hang, C.J., Wang, C.Q., Mayer, M., Tian, Y.H., Zhou, Y., & Wang, H.H. 2008. Growth Behavior of Cu/Al Intermetallic Compounds and Cracks in Copper Ball Bonds during Isothermal Aging. Microelectronics Reliability, 48, pp.416-424.

Li, C., & Sun, B. 2004. Microstructure and Property of micro-plasma-sprayed Cu coating. Materials Science and Engineering A, 379, pp.92-101.

Limpichaipanit, A., Watcharapasorn, A., Wirojanupatump, S., & Jiansirisomboon, S. 2011. Fabrication and Mechanical Properties of Thermal Sprayed Copper-based Coatings. Journal of the Microscopy Society of Thailand, 4(2), pp.123-126.

Mrdak, M., Rakin, M., Medjo, B., & Bajić, N. 2015. Experimental Study of Insulating Properties and Behaviour of Thermal Barrier Coating Systems in Thermo Cyclic Conditions Materials and Design. Materials and Design, 67, pp.337-343.

Mrdak, M. 2015a. Characteristics of APS and VPS plasma spray processes. Vojnotehnički glasnik / Military Technical Courier, 63(3), pp.137-159.

Mrdak, M. 2015b. Morphology of powder particles produced by spray atomization and other processes. Vojnotehnički glasnik / Military Technical Courier, 63(4), pp.46-67.

Mrdak, M. 2016a. Study of the application of plasma sprayed coatings on the sections of the Astazou III B turbo - jet engine. Vojnotehnički glasnik / Military Technical Courier, 64(1), pp.1-25.

Mrdak, M. 2016b. Properties of the ZrO2MgO/MgZrO3NiCr/NiCr triple-layer thermal barrier coating deposited by the atmospheric plasma spray process. Vojnotehnički glasnik / Military Technical Courier, 64(2), pp.411-430.

Sartale, S.D., & Yoshitake, M. 2010. Investigation of Cu-Al surface alloy formation on Cu substrate. Journal of Vacuum Science & Technology B, 28, pp.353-360.

Standard Practices Manual (PN 582005) 2002. East Hartford, USA: Pratt & Whitney.

Vencl, A., Arostegui, S., Favaro, G., Zivic, F., Mrdak, M., Mitrović, S., & Popovic, V. 2011. Evaluation of adhesion/cohesion bond strength of the thick plasma spray coatings by scratch testing on coatings cross-sections. Tribology International, 44(11), pp.1281-1288.

Vencl, A., Manić, N., Popovic, V., & Mrdak, M. 2010. Possibility of the abrasive wear resistance determination with scratch tester. Tribology Letters, 37(3), pp.591-604.

Wang, B.Q., & Seitz, M.W. 2001. Comparison in erosion behavior of ironbase coatings sprayed by three different arc-spray processes. Wear, 250, pp.755-761.

Zhang, Z., Li, D., & Wang, S. 2006. High Temperature Performance of Arc-sprayed Aluminium Bronze Coatings for Steel. Transactions of Nonferrous Metals Society of China, 16, pp.868-872.

Objavljeno
2016/11/25
Rubrika
Originalni naučni radovi