Structural Characterization of Titanium Nitride Coatings on AISI M2 Steel


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In this work, some surface properties of AISI M2 steel were improved by a thermoreactive deposition process. Gas nitriding was realized on AISI M2 steel at 550°C for 2 h in an ammoniac atmosphere and then, titanizing treatment performed on pre-nitrided steel in the powder mixture consisting of ferro-titanium, ammonium chloride and alumina at 1000°C for 1-4 h. Structural characterization of titanium nitride layer formed on the surface of AISI M2 steel was carried out by using optical microscopy, scanning electron microscopy, electron microprobe and Xray diffraction (XRD) analysis. The hardness measurements of titanium nitride layer were conducted under 10 g loads by using Vickers microhardness indenter. Structural analysis studies showed that titanium nitride layers formed on the AISI M2 steel samples were smooth, compact and homogeneous. XRD analysis show that the coating layer formed on the steel samples includes TiN, Fe6Mo7N2, C0.7N0.3Ti, C0.3N0.7Ti and V2N phases. The hardness of titanium nitride layers formed on the steel samples is between 2040±186 and 2418±291 HV0.01. The thickness of titanium nitride layer formed on the steel samples ranged from 3.86±0.43 9m to 6.13±0.47 9m, depending on treatment time.



Edited by:

Hasan Mandal




G. Deniz et al., "Structural Characterization of Titanium Nitride Coatings on AISI M2 Steel", Materials Science Forum, Vol. 554, pp. 219-224, 2007

Online since:

August 2007




[1] J. C Nable, S. Nosheen, S. L Suib and F. S Galasso: Surface and Coatings Technology 200 (2006), pp.2821-2826.


[2] K. Holmberg, A. Matthews and D. Dowson, Editors, Coatings tribology, Tribology Series vol. 28, Elsevier, Amsterdam (1990), pp.173-189.

[3] H. E. Rebenne and D. G. Bhat: Surface and Coatings Technology 63 (1994), pp.1-13.

[4] S. R. Kurtz and R. G. Gordon: Thin Solid Films 140 (1986), pp.277-290.

[5] N. Ramanuja, R. A. Levy, S. N. Dharmadhikari, E. Ramos, C. W. Pearce, S. C. Menasian, P. C. Schamberger and C. C. Collins: Materials Letters 57 (2002), pp.261-269.


[6] C. Mitterer, F. Holler, F. Ustel and D. Heim: Surface and Coating Technology 125 (2000), pp.233-239.

[7] E. Badisch, G. A Fontalvo, M. Stoiber and C. Mitterer: Surface and Coatings Technology 163-164, (2003), pp.585-590.


[8] U. Sen: Materials and Design 75 (2004), pp.339-345.

[9] W. J. Chou, G. P. Yu and J. H. Huang: Surface and Coatings Technology 155 (2002), p.239244.

[10] M. Futakawa, H. Takahashi, G. Inoue and T. Fujioka: Desalination 98 (1994), pp.345-352.

[11] T. Arai: Thermoreactive deposition/diffusion process, ASM Handbook, V. 4: Heat threating. Materials Park, OH: ASM International; (1991), pp.448-453.

[12] I. Efeoglu and A. Celik: Materials Characterization 46 (2001), pp.311-316.

[13] B. Podgornik, J. Vizintin, O. Wanstrand, M. Larsson and S. Hogmark: Surface and Coating Technology 177-178, (2004), pp.558-565.

[14] T. Arai In: T. S. Sudarshan, D. G. Bhat and H. Hinderman, Editors: Development of carbide and nitride coatings by thermo-reactive deposition and diffusion Proceedings of Third International Surface Modification Technologies, Neuchatel, Switzerland, August 23- September 1 (1989).

[15] T. Arai, H. Fujita, Y. Sugimoto and Y. Ohta In: B. Richard and Jr. Sisson, Editors, Diffusion carbide coatings formed in molten borax systems (reaction in borax bath and properties of carbide coated steel) Proceedings of 85 ASM's International Conference on Surface Modifications and Coatings (Materials Week , 85), Toronto, Ontario, Canada, October 14-16 (1985).


[16] S. Sen: Materials and Design 27 (2006), pp.85-91.

[17] S. Sen: Vacuum 79 (2005), pp.63-70.

[18] A. Rodrigo, P. Perillo and H. Ichimura: Surface and Coatings Technology 124 (2000), pp.87-92.

[19] E. Badisch, M. Stoiber, G. A. Fontalvo and C. Mitterer: Surface and Coatings Technology 174-175, (2003), pp.450-454.

[20] U. Sen: Materials Chemistry and Physics 86 (2004), pp.189-194.