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Investigation of surface fatigue of thermally sprayed micro- and nanocrystalline cylinder wall coatings by means of cavitation testing

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Published/Copyright: June 11, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 99 Issue 10

Abstract

The future demands of diesel engines require new options for low-friction and wear-resistant materials in order to increase efficiency and achieve environmentally sound solutions. Efforts are made to improve the performance and reduce the weight of engine blocks by coating the aluminium cylinder bores using thermal-spray processes. Thus, along with other means, today nanocrystalline coatings are considered when looking for the desired combination of structural, productional, and topographical properties. Besides sufficient tribological properties it is important that the composite (base material and coating) allows for prolonged endurance under cyclic mechanical and thermal stresses. Prior to engine tests these coatings are characterised in the laboratory by means of bench tests for adhesive tensile strength, tribological properties and fatigue of the composite. Cavitation tests should reveal the tribological stability of these coatings and their ability to resist high-frequency cyclic impact stresses. The objective in this investigation is to describe the cavitation behaviour and the influence of voids such as pores or oxides.

Keywords: Thermal spray; Cavitation; Wear appearances; Fe-base coatings
* Correspondence address, Dipl.-Ing. Mareike Hahn Institut für Produkt Engineering, Werkstofftechnik Lotharstr. 1, D-47057 Duisburg, Germany Tel.: +49 203 379 1266 Fax: +49 203 379 4374 E-mail:

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Received: 2008-3-31
Accepted: 2008-5-30
Published Online: 2013-06-11
Published in Print: 2008-10-01

© 2008, Carl Hanser Verlag, München

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. To Professor Dr.-Ing. Karl-Heinz Zum Gahr on the occation of his 65th birthday
  5. Review
  6. Innovative materials for energy technology
  7. STAU – a review of the Karlsruhe weakest link finite element postprocessor with extensive capabilities
  8. Basic
  9. “Evolution” of microstructure in materials
  10. X-ray analysis of steep residual stress gradients: The 2θ-derivative method
  11. Investigation of surface fatigue of thermally sprayed micro- and nanocrystalline cylinder wall coatings by means of cavitation testing
  12. Thermal, mechanical and fretting fatigue of silicon nitride
  13. Effect of phase stability and composition on hydrogen diffusion in the binary systems Ti–Mo and Ti–V and related Ti-base alloys
  14. Determination of v–K curves from lifetime tests with reloaded survivals
  15. Mechanical properties of a single gecko seta
  16. Applied
  17. Influence of Fe–F-co-doping on the dielectric properties of Ba0.6Sr0.4TiO3 thick-films
  18. Microstructural and acoustic damage analysis and finite element stress simulation of air plasma-sprayed thermal barrier coatings under thermal cycling
  19. The running-in of amorphous hydrocarbon tribocoatings: a comparison between experiment and molecular dynamics simulations
  20. Development of multifunctional thin films using high-throughput experimentation methods
  21. A transmission electron microscopy procedure for in-situ straining of miniature pseudoelastic NiTi specimens
  22. Recent developments in micro ceramic injection molding
  23. σ-phase morphologies and their effect on mechanical properties of duplex stainless steels
  24. Development of high power density cathode materials for Li-ion batteries
  25. Notification
  26. DGM News
https://doi.org/10.3139/146.101745
Keywords for this article
Thermal spray; Cavitation; Wear appearances; Fe-base coatings

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. To Professor Dr.-Ing. Karl-Heinz Zum Gahr on the occation of his 65th birthday
  5. Review
  6. Innovative materials for energy technology
  7. STAU – a review of the Karlsruhe weakest link finite element postprocessor with extensive capabilities
  8. Basic
  9. “Evolution” of microstructure in materials
  10. X-ray analysis of steep residual stress gradients: The 2θ-derivative method
  11. Investigation of surface fatigue of thermally sprayed micro- and nanocrystalline cylinder wall coatings by means of cavitation testing
  12. Thermal, mechanical and fretting fatigue of silicon nitride
  13. Effect of phase stability and composition on hydrogen diffusion in the binary systems Ti–Mo and Ti–V and related Ti-base alloys
  14. Determination of v–K curves from lifetime tests with reloaded survivals
  15. Mechanical properties of a single gecko seta
  16. Applied
  17. Influence of Fe–F-co-doping on the dielectric properties of Ba0.6Sr0.4TiO3 thick-films
  18. Microstructural and acoustic damage analysis and finite element stress simulation of air plasma-sprayed thermal barrier coatings under thermal cycling
  19. The running-in of amorphous hydrocarbon tribocoatings: a comparison between experiment and molecular dynamics simulations
  20. Development of multifunctional thin films using high-throughput experimentation methods
  21. A transmission electron microscopy procedure for in-situ straining of miniature pseudoelastic NiTi specimens
  22. Recent developments in micro ceramic injection molding
  23. σ-phase morphologies and their effect on mechanical properties of duplex stainless steels
  24. Development of high power density cathode materials for Li-ion batteries
  25. Notification
  26. DGM News
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