Microstructure and Residual Stresses in Surface Coatings with PTFE Reservoirs

The paper presents the results of experimental study into the microstructure and changes in residual stresses resulting from sliding and rolling/sliding loaded interaction between metallic surface coatings with embedded PTFE reservoirs and various counter faces. It was found that before testing surf...

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Bibliographic Details
Published in:Tribology letters 2013-07, Vol.51 (1), p.93-103
Main Authors: Stolarski, T. A., Yamane, M.
Format: Article
Language:English
Subjects:
Aluminum
Aluminum bronzes
Chemistry and Materials Science
Coating
Coatings
Compressive properties
Contact stresses
Corrosion and Coatings
Materials Science
Microstructure
Nanotechnology
Original Paper
Physical Chemistry
Polytetrafluoroethylene
Polytetrafluoroethylenes
Reservoirs
Residual stress
Sliding
Stress concentration
Surfaces and Interfaces
Theoretical and Applied Mechanics
Thin Films
Tribology
Ultrasonic testing
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Summary:The paper presents the results of experimental study into the microstructure and changes in residual stresses resulting from sliding and rolling/sliding loaded interaction between metallic surface coatings with embedded PTFE reservoirs and various counter faces. It was found that before testing surface coatings had compressive residual stresses. Molybdenum coating with all types of PTFE reservoirs displayed, as a result of testing, decrease in residual stress level unevenly distributed within the contact path. On the other hand, aluminum–bronze coating, regardless the shape of PTFE reservoirs embedded into it, did not show any appreciable change in the residual stress level due to testing. Residual stresses generated under testing conditions in counter materials were typically of the compressive nature.
ISSN:1023-8883
1573-2711
DOI:10.1007/s11249-013-0150-x