Microstructure and Corrosion Resistance of TiN Coating on HSS by Pulsed Bias Cathodic Arc Ion Plating

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Abstract:

TiN coating with thickness of 2.5μm was deposited on high-speed steel (HSS) substrate by pulsed bias cathodic arc ion plating. The surface and cross-section morphologies, composition depth profile and phase structure were characterized by FESEM, GDOES and XRD, respectively. Scratch test for adhesion evaluation, microhardness test for hardness measurement, and potentiodynamic polarization for corrosion resistance test were used. The results show that the TiN coating exhibits smooth surface, dense columnar grain structure and an obviously preferred orientation of TiN(111). The adhesion of the coating to substrate is exceeded more than 100N. The hardness of the coating is about 26 GPa. The low corrosion current density (Icorr) and rather high corrosion potential (Ecorr) value imply that the TiN coating displays a good corrosion resistance in 0.5mol/l NaCl solution. However, pitting is still existed due to the defects in the coating.

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Materials Science Forum (Volumes 675-677)

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1307-1310

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February 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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[1] Y. Li, L. Qu, F. Wang and Z. Shao: Journal of Chinese Society for Corrosion and Protection Vol. 23 (2003), p.65.

Google Scholar

[2] L. Xiao, D. Yan, J. He, L. Zhu, Y. Dong, J. Zhang, X. Li: Applied Surface Science Vol. 253 (2007), p.7535.

Google Scholar

[3] Akira Azushima, Yasuo Tanno, Hiroyuki Iwata, Kohshiro Aoki: Wear Vol. 265 (2008), p.1017.

Google Scholar

[4] L.I. Wei, Jun-Fang Chen: Applied Surface Science Vol. 253 (2007), p.7019.

Google Scholar

[5] M. A. M. Ibrahim, S. F. Korablov, M. Yoshimura: Corrosion Science Vol. 44 (2002), p.815.

Google Scholar

[6] J. Y. Chen, G. P. Yu, J. H. Huang: Materials Chemistry and Physics Vol. 65 (2000), p.310.

Google Scholar

[7] M. Flores, L. Huerta, R. Escamilla, E. Andrade, S. Muhl : Applied Surface Science Vol. 253 (2007), p.7192.

Google Scholar

[8] B. Subramanian, M. Jayachandran : Materials Letters Vol. 62 (2008), p.1727.

Google Scholar

[9] S.H. Ahn, J.H. Hong, J.G. Kim, J.G. Han : Thin Solid Films Vol. 515 (2007), p.6878.

Google Scholar

[10] F. Lang, Z. Yu: Surface and Coatings Technology Vol. 145 (2001), p.80.

Google Scholar

[11] L. Tian, E. Liu, A. Fan, L. Qin, D. Liu, B. Tang, J. Pan: Mater. Sci. Forum Vol. 610-613 (2009), p.870.

Google Scholar