Plastic Flow and Related Wear Mechanisms of CVD TiC Coatings


Article Preview

Ceramic coatings have been widely used in cutting tools and various machine parts. Even though high strengths have been obtained in most ceramic coatings, it has also been shown that ceramic coatings undergo extensive plastic deformation during scratch and wear tests. Therefore, it is essential to understand the plastic flow and related friction and wear behaviour. Reciprocating multipass wear tests have been carried out on chemical vapor deposition (CVD) TiC coatings. Obvious plastic flow was observed on the rough surface of CVD TiC ceramic coatings in the first sliding, due to the extremely high contact pressure developed on the contact asperities. However, shake down may be quickly reached after several subsequent traverses. In further repeated traverses, the plastic-elastic flow accumulates residual strain energy to the point where cracking, microbuckling, and microflaking may occur along the elastic-plastic interfaces behind the indenter. The new rough surface will appear after the detachment of the heavily strained plate-like wear debris. The repeated sliding allows the process- “plastic flow of asperities - flatten the surface and shake down - microbuckling and detachment of strained layer” to continue until the coating is totally worn out.



Advanced Materials Research (Volumes 126-128)

Edited by:

Yunn-Shiuan Liao, Chao-Chang A. Chen, Choung-Lii Chao and Pei-Lum Tso




H. H. Chien et al., "Plastic Flow and Related Wear Mechanisms of CVD TiC Coatings", Advanced Materials Research, Vols. 126-128, pp. 970-975, 2010

Online since:

August 2010




[1] R. D. Arnell: Surf. Coat. Technol. Vol. 43/44 (1990), p.674.

[2] R. D. Arnell, P. B. Davies, J. Halling, and T. L. Whomes: Tribology: Principles and Design Applications (Macmillian, London 1991).

[3] D. F. Diao and K. Kato: Thin Solid Films Vol. 245 (1994), p.115.

[4] K. Mao, Y. Sun, and T. Bell: Surf. Eng. Vol. 10 (1994), p.297.

[5] K. Komvopoulos: J. Tribology, Trans. ASME Vol. 111 (1989), p.430.

[6] P. A. Dearnley: Surf. Eng. Vol. 1 (1985), p.43.

[7] S. J. Bull and D. S. Rickerby: Thin Solid Films Vol. 181 (1989), p.545.

[8] K. J. Ma and A. Bloyce: Surf. Eng. Vol. 11 (1995), p.71.

[9] K. Kato: Surf. Coat. Technol. Vol. 76/77 (1995), p.469.

[10] K. J. Ma: Ph. D Thesis, Birmingham University, (1997).

[11] K. L. Johnson, in: Dissipative Process in Tribology, edtied by D. Dowson et al. Elsevier, Amsterdam, (1994), p.21.

Fetching data from Crossref.
This may take some time to load.