Chapter 22. The Influence of Substrate Microstructure on the Crack Formation of CrN Coatings on Brass.

  1. Todd Jessen and
  2. Ersan Ustundag
  1. Saki Krishnamurthy and
  2. Ivar E. Reimanis

Published Online: 28 MAR 2008

DOI: 10.1002/9780470294635.ch22

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 21, Issue 4

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 21, Issue 4

How to Cite

Krishnamurthy, S. and Reimanis, I. E. (2000) The Influence of Substrate Microstructure on the Crack Formation of CrN Coatings on Brass., in 24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 21, Issue 4 (eds T. Jessen and E. Ustundag), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294635.ch22

Author Information

  1. Department of Metallurgical and Materials Engineering Colorado School of Mines Golden, CO-80401

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 2000

ISBN Information

Print ISBN: 9780470375693

Online ISBN: 9780470294635

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Keywords:

  • failure mechanisms;
  • optical microscopy;
  • tensile stress;
  • tribological coatings;
  • cracking techniques

Summary

A model system consisting of a CrN coating approximately 5 μm thick deposited by magnetron sputtering on cartridge brass was deformed under uniaxial tension to study the failure mechanisms of the coating. The flow stress of the brass substrate was varied by annealing the cold rolled material to produce a variety of grain sizes. The evolution of cracks in the coating as a function of flow stress was studied by optical microscopy experiments. These results are explained in terms of current models of thin film cracking on ductile substrates.