A Comparative Study of Thermal Sprayed AISI 316L Stainless Steel Coatings

Harun MİNDİVAN, Adnan KALE, Umit BERSE, Ramazan SAMUR
1.023 170

Öz


In this study, austenitic stainless steel (316L) coatings were formed using both Wire Flame Spray Forming (WSF) and High Velocity Oxy Fuel (HVOF) deposition processes after a NiCr bond layer was deposited on low carbon steel substrate. The coatings were characterized by light optical microscope (LOM) and microhardness measurements. Corrosion resistance of 316L austenitic stainless steel coatings applied onto low carbon steel via WSF and HVOF spray processes was analyzed by using the potentiodynamic polarization scanning (PDS) technique. The wear behaviour of the coatings against Al2O3 ball was investigated with a reciprocating tester under dry friction conditions. It was found that the HVOF sprayed coating showed higher hardness and better wear resistance than the WSF coating. However, the overall corrosion resistance of the HVOF deposited coating was inferior to that of the WSF coating.

Tam metin:

127-134 (English)

Referanslar


Huang, P-K., Yeh, J-W., Shun, T-T., Chen, S-K.,“Multi-principal-element alloys with improved oxidation and wear resistance for thermal spray coating”, Advanced Engineering Materials, 2004, 6: 74-78.

Sidhu, T. S., Prakash, S., and Agrawal, R. D., “Studies on the properties of high-velocity oxy–fuel thermal spray coatings for higher temperature applications”, Materials Science, 2005, 41 (6): 805-823.

Uyulgan, B., Dokumaci, E., Celik, E., Kayatekin, I., Ak Azem, N.F., Ozdemir, I., . Toparli, M., “Wear behaviour of thermal flame sprayed FeCr coatings on plain carbon steel substrate”, Journal of Materials Processing Technology, 2007, 190: 204–210.

Dobler, K., Kreye, H., and Schwetzke, R., “Oxidation of stainless steel in the high velocity oxy-fuel process”, Journal of Thermal Spray Technology, 2000, 9(3): 407-413.




ISSN: 2148-3736

El-Cezeri Journal of Science and Engineering is indexed by: