Evaluation of Two Different Energy Inputs for Deposition of Stellite 6 by Laser Cladding on a Martensitic Stainless Steel Substrate

Abstract:

Stellite 6 was deposited by laser cladding on a martensitic stainless steel substrate with energy inputs of 1 kW (MSS-1) and 1.8 kW (MSS-1.8). The chemical compositions and microstructures of these coatings were characterized by atomic absorption spectroscopy, optical microscopy and scanning electron microscopy. The microhardness of the coatings was measured and the wear mechanism of the coatings was assessed using a pin-on-plate (reciprocating) wear testing machine. The results showed less cracking and pore development for Stellite 6 coatings applied to the MSS steel substrate with the lower heat input (MSS-1). Further, the Stellite coating for MSS-1 was significantly harder than that obtained for MSS-1.8. The wear test results indicated that the weight loss for MSS-1 was much lower than for MSS-1.8. It is concluded that the lower hardness of the coating for MSS-1.8, markedly reduced the wear resistance of the Stellite 6 coating.

• Periodical: Advanced Materials Research (Volume 1119)
• Pages: 628-632
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1119.628
• Online since: July 2015
• Authors: Alain Kusmoko*, Druce Dunne, Hui Jun Li
• Keywords: Friction, HAZ, Laser Cladding, Martensitic Stainless Steel, Stellite 6 Coating, Wear

References

[1] Cobalt-Base Rods, Electrodes and Wires (W-207), Stellite Wear Technology, Cabot Corporation, Kokomo, Indiana (1982).

[2] Tribology Wear Resistance Intermettalic Materials (W-152), Wear Technology Division, Cabot Corporation, Kokomo, Indiana (1980).

[3] Tribology T-900 Technical Data, Stellite Coating Division, Deloro Stellite Company, Goshen, Indiana (2002).

[4] Information on http: /www. keymetals. com.

[5] Information on http: /www. bssa. org. uk.

[6] W. M. Steen, The Industrial Laser Annual Handbook, in: D. Belforte, M. Levitt (Eds. ), Laser in Surface Engineering, SPIE, Pennwell, Tulsa, OK (1986), pp.158-174.

[7] G. J. Bruck: JOM Vol. 39 (1987), pp.10-23.

[8] P. J. E. Monson and W.M. Steen: Surf. Eng Vol. 6 (1990), p.185.

[9] A. Kusmoko, D. Dunne, H. Li and D. Nolan: Mater. Sci. Frm Vol. 773-774 (2014), pp.581-597.

[10] A. Kusmoko, Dry Sliding Wear Behaviour of Induction Hardened 4140 and Carburised 8617H Steels on 1040 Steel, MSc Thesis, The University of New South Wales (2000).

DOI: 10.4028/www.scientific.net/msf.773-774.851

[11] M. C. Jeng, L.Y. Yan and J. L. Doong: Surface and Coatings Technology Vol. 48 (1991), p.225 – 231.

[12] A. Kusmoko, D. Dunne, H. Li and D. Nolan: Adv. Mater. Research Vol. 911 (2014), pp.97-101.

[13] X.W. Qiu, Y. P. Zhang and C.G. Liu: Rare Metal Materials and Engineering Vol. 41 (2012), pp.182-185.