Coatings chromium nitride

FIGURE 24.8 Dependence of the value of internal stresses in CrN coatings on the N/Cr ratio. (From Surf. Coat. TechnoL, 86-87, Demaree, J., Fountzonlas, C., and Hirvonen, J., Chromium nitride coatings prodnced by ion beam assisted deposition, 309-315, Copyright 1996, with permission from Elsevier.)... 

FIGURE 24.11 Wear of the CrN coating after 200 test cycles as a function of Cr/N arrival ratio and energy of ions. (From Nucl. Instrum. Methods Phys. Res., B80/81, Sugiyama, K., Hayashi, K., Sasaki, J., Ichiko, O., and Hashiguchi, Y., Basic characteristics of chromium nitride films by dynamic ion beam mixing, 1376-1382, Copyright 1993, with permission from Elsevier.)... 

Demaree, J., Fountzoulas, C., Hirvonen, J. 1996. Chromium nitride coatings produced by ion beam assisted deposition. Surf. Coat. Technol. 86-87 309-315. 

Ehrlich, A., Kiihn, M., Richter, R, Hoyer, W. 1995. Complex characteristics of vacuum arc-deposited chromium nitride films. Surf. Coat. Technol. 76-77 280-286. 

G. Berg, C. Friedrich, E. Broszeit and C. Berger, Development of chromium nitride coatings substituting titanum nitride. Surf. Coat. Technol. 1996, 86-87, 184-191. 

On the one hand, high chromium steel polished surfaces can be used as a surface protection. On the other hand, hard chrome plating with a thickness of approx. 0.005 mm is used as the most common and least expensive coating for elastomer molds. Currently, a coating based on chromium nitride is increasingly used. In addition to these coatings, numerous other options can be considered, such as ceramic coatings or titanium-based surfaces. 

Nitrides are used for wear-resistant applications, most notably surface engineering of cemented carbide cutting tools and tool steels. Titanium nitride (TiN) is the most frequently employed coating, but titanium car-bonitride (TiCN), hafnium carbide (HfC), titanium aluminum nitride (TiAlN), titanium zirconium nitride (TiZrN), and chromium nitride (CrN) have also been used commercially. These coatings are applied by vapor deposition techniques (Fig. 2). 

Galvin AL, Williams S, Hatto P, Thompson J, Isaac G, Stone M, et al. Comparison of wear of ultra high molecular weight polyethylene acetabular cups against alumina ceramic and chromium nitride coated femoral heads 15th international conference on wear of materials. Wear 2005 259 972-6. 

A.P. Ehiasarian, W.-D. Miinz, L. Hultman, U. Helmersson, Comparison of microstructure and mechanical properties of chromium nitride-based coatings deposited by high power impulse magnetron sputtering and by the combined steered cathodic/arc/ unbalanced magnetron technique. Thin Solid Films 457 (2004) 270. 

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