Investigation of Coatability of NiAl Powder to AISI 304 Stainless Steel Using SHS Process

Öz

This study relates to the coatability of the Ni-Al powder to surface of AISI 304 stainless steel substrate using self-propagating high temperature synthesis (SHS) method. Effects of different pressing pressure and sintering after igniting on the microstructure and microhardness of the coating was investigated experimentally. Scanning electron microscope (SEM), X-ray diffraction (XRD) techniques were used to characterize the coatings. The microhardness was measured by microhardness device. Along the depth from the surface towards the substrate coating has been found microhardness variations. Micro hardness of the coating layer increased with increasing of the pressing pressure and the sintering temperature.

Anahtar Kelimeler

• -

Kaynakça

1. Blau, P.J. and DeVore, C.E. (1990) Sliding friction and wear behaviour of several nickel aluminide alloys under dry and lubricated conditions, Tribology International, Vol. 23(4), 226-234.
2. Jimenez, J.A., Klaus, S., Carsi, M., Ruano, O.A., Frommeyer, G. (1999) Microstructure and high-temperature mechanical behavior of the NiAl–27 at.% Cr intermetallic composite, Acta Materialia, Vol. 47(13), 3655-3662.
3. Jin, J.-H. and Stephenson, D.J. (1998) The sliding wear behaviour of reactively hot pressed nickel aluminides, Wear, Vol. 217(2), 200-207.
4. Johnson, B.J., Kennedy, F.E., Baker, I. (1996) Dry sliding wear of NiAl, Wear, Vol. 192(1-2), 241-247.
5. La, P., Bai, M., Xue, Q., Liu, W. (1999) A study of Ni3Al coating on carbon steel surface via the SHS casting route, Surface and Coatings Technology, Vol. 113(1-2), 44-51.
6. Subrahmanyam, J. and Vijayakumar, M. (1992) Self-propagating high-temperature synthesis, Journal of Materials Science, Vol. 27(23), 6249-6273.
7. Tosun, G., Ozler, L., Kaya, M., Orhan, N. (2009) A study on microstructure and porosity of NiTi alloy implants produced by SHS, Journal of Alloys and Compounds, Vol. 487(1-2), 605-611.
8. Yeh, C.L. and Sung, W.Y. (2004) Synthesis of NiTi intermetallics by self-propagating combustion, Journal of Alloys and Compounds, Vol. 376(1-2), 79-88.

9. Yuan, X., Liu, G., Jin, H., Chen, K. (2011) In situ synthesis of TiC reinforced metal matrix composite (MMC) coating by self propagating high temperature synthesis (SHS), Journal of Alloys and Compounds, Vol. 509(30), L301-L303.