Durability of Low Pressure Plasma Sprayed MoB/CoCr Coating on 310S Stainless Steel in Molten Al-12.07wt.%Si Alloy

Abstract:

A sprayed MoB/CoCr cermet coating was formed on 310S stainless steel by low pressure plasma spraying (LPPS), and its durability in the molten Al-12.07wt.%Si has been investigated by SEM、EDS and XRD. The immersion test revealed that the MoB/CoCr coating has much higher durability without dissolution in the molten Al-12.07wt.%Si alloy. Little change of crystal structure, mainly composed of ternary borides of Co2MoB2 and CoMoB, suggesting that the ternary borides have much higher durability.

• Periodical: Advanced Materials Research (Volumes 314-316)
• Pages: 187-190
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.314-316.187
• Online since: August 2011
• Authors: Xiao Chen, Ren Yuan Zhang, Feng Li
• Keywords: Al-12.07Wt.%Si Alloy, Corrosion, MoB/CoCr, Thermal Shock

References

[1] H. Mizuno, J. Kitamura, S. Osawa, and T. Itsukaichi, Development of Durable Spray Coating in Molten Al and Al-Zn alloys, Proc. 1st Asian Thermal Spray Conference (Nagoya, Japan), on Asian Thermal Spray Committee, 2005, pp.81-82.

DOI: 10.31399/asm.cp.itsc2005p0080

[2] H. Mizuno, J. Kitamura, S. Osawa, and T. Itsukaichi, Development of Durable Spray Coating in Molten Aluminum alloy, Proc. International Thermal Spray Conference 2005, (Basel , Switzerland), ASM International, 2005, CD-ROM.

DOI: 10.31399/asm.cp.itsc2005p0080

[3] H. Mizuno, J. Kitamura, S. Osawa, and T. Itsukaichi, MoB/CoCr Spray Coating with Higher Durability in Molten Al and Al-Zn alloys, Proc. International Thermal Spray Conference 2006, (Seattle, USA), ASM International, 2006, CD-ROM.

DOI: 10.31399/asm.cp.itsc2006p1119

[4] H. Mizuno, J. Kitamura. MoB/CoCr Cermet Coatings by HVOF Spraying against Erosion by Molten Al-Zn alloy, J. Therm. Spray Technol. 2007, 16(3), pp.404-413.

DOI: 10.1007/s11666-007-9046-3

[5] L.F. Mondolfo, Butter Worths, 1976.

[6] L.I. Cherneeva E.K. Rodionova, N. M .Martynova, Izv Vyssh Uchebn Zaved Energy，1982, 52.

[7] K.Hamashima, Y.Shinozaki, Pre-Prints of the National Meeting of Japan Welding Society, Japan Weld Soc, 1998, 62, 154-155.

[8] K.Hamashima, Y.Shinozaki, Pre-Prints of the National Meeting of Japan Welding Society, Japan Weld Soc, 1998, 63, 72-73.

[9] K.Hamashima, Y.Shinozaki, M.Sasaki, International Conference on Powder Metallurgy & Particulate Materials, Advances in Powder Metallurgy & Particulate Materials, part2, Chicago, USA, Metal Powder Industries Federation and APMI International., 1997, 43-48.

DOI: 10.1007/978-1-4615-8963-1

[10] T.Itsukaichi, S.Osawa, US Patent 6984255, 2006.