This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
PVD-Wear Resistant Coatings of Homogeneous and Graded Ti(C,N): Residual Stresses and Mechanical Performance under Hertzian Load
Technical Paper
2002-01-1407
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Ceramic protective coatings on cutting tools for steel machining are state of the art in industrial applications. Several concepts to improve the efficiency of machining processes as for instance high-speed or dry cutting yield increasing demands regarding the wear and corrosion resistance of the protective tool coatings. The generic process characteristics of PVD-coating techniques offer opportunities to tailor the coatings in terms of microstructure and residual stress states by adjusting appropriate process parameters. Besides chemical composition and microstructure the residual stresses in the coatings strongly influence their in-service performance and, are therefore important to assess and to correlate with process parameters. A special approach was employed to non-destructively determine the depth profiles of residual stresses and stress-free lattice parameters present in PVD-Ti(C,N)-compositionally graded coatings on substrates of cemented carbide by means of depth-resolved X-ray residual stress analysis. The coatings were mechanically tested by recording load-indentation curves using a spherical diamond indenter to yield concentric coating fracture. Together with results of residual stress analyses and microscopical characterization of indentation experiments the fracture initiating stresses were determined by FEM-analysis. A positive effect of compressive residual stresses on load-bearing capacity and effective fracture strength of the coating systems clearly turned out. Results from graded coatings are compared with those obtained from corresponding homogeneous coatings of Ti(C,N). Using a simple fracture criterion the mode-I fracture toughness of the coatings was estimated.
Recommended Content
Authors
Citation
Dümmer, T. and Löhe, D., "PVD-Wear Resistant Coatings of Homogeneous and Graded Ti(C,N): Residual Stresses and Mechanical Performance under Hertzian Load," SAE Technical Paper 2002-01-1407, 2002, https://doi.org/10.4271/2002-01-1407.Also In
References
- Roth T. Broszeit E. Kloos K.H. Surf. Coat. Technol. 36 1988 765 772
- Fella R. Holleck H. Schulz H. Surf. Coat. Technol. 36 1988 257 264
- Bull S.J. Rickerby D.D. Robertson T. Hendry A. Surf. Coat. Technol. 36 1988 743 754
- Holleck H. Metall 43 1989 614 624
- Eigenmann B. Lebrun J.L. In 9 th International Symposium Measurement of Residual Stresses Bulletin du Cercle d'Etudes des Métaux, Ecole Nationale Supérieure des Mines de Saint-Etienne 1993 2-1 2-14
- Ruppersberg H. Detemple I. Krier J. Zeitschrift für Kristallographie 195 1991 189 203
- Eigenmann B. Scholtes B. Macherauch E. Residual Stresses III Fujiwara H. Abe T. Tanaka K. Elsevier Applied Science London, New York 1992 601 606
- Peiter A. Lode W. Materialprüfung 22 1980 288 290
- Dümmer T. Eigenmann B. Stüber M. Leiste H. Löhe D. Müller H. Vöhringer O. Z. Metallkd. 90 1999 10 780 787 Dümmer T. et al. Z. Metallkd. 90 1999 12 1030
- Eigenmann B. Macherauch E. Mat.-wiss. u. Werkstoff-tech 26 1995 148 160 26 1995 199 216 27 1996 426 437 27 1996 491 501
- Nowak R. Li C.L. Maruno S. J. Mater. Res. 12 1997 64 69
- Swain M.V. Mencík J. Thin Solid Films 253 1994 204 211
- Weppelmann E. Swain M.V. Thin Solid Films 286 1996 111 121
- Angélélis C. Ducarroir M. Felder E. Ignat M. Scordo S. Surface Engineering 13 1997 207 212
- Heinke W. Lyland A. Matthews A. Berg G. Friedrich C. Broszeit E. Thin Solid Films 270 1995 431 438
- DeHoff R.T. Rhines F.N. Quantitative Microscopy McGraw-Hill Book Company New York 1968
- Henke B.L. Gullikson E.M. Davis J.C. Atomic Data and Nuclear Data Tables 54 1993 181 342
- Knotek O. Elsing R. Krämer G. Jungblut F. Surf. Coat. Technol. 46 1991 265 274
- Dümmer T. Homogene und gradierte PVD-Schichten aus TiC, TiN und Ti(C,N) zur Verschleißminderung: Eigenspannungs- und Gefügeentwicklung sowie mechanisches Verhalten unter Hertzscher Pressung Werkstoffwissenschaft und Werkstofftechnik Löhe D. Müller H. Vöringer O. Schaker-Verlag GmbH Aachen 2001
- Munz D. Fett T. Ceramics: Mechanical Properties, Failure Behaviour, Materials Selection Springer-Verlag Berlin, Heidelberg 1999