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Self-adaptive wear behavior of nano-multilayered TiAlCrN/WN coatings under severe machining conditions
- Source :
- Surface and Coatings Technology. 201:1852-1860
- Publication Year :
- 2006
- Publisher :
- Elsevier BV, 2006.
-
Abstract
- Application of quaternary nitride (Ti,Cr,Al) N/WN nano-multilayered coatings results in a significant increase of tool life as well as wear behavior improvement under conditions of dry high-speed machining (end milling) of hardened H13 steel (HRC 50). Investigations of surface structure characteristics of TiAlCrN/WN coatings using TEM, SEM, EDX, and XPS have been performed. The microhardness, modulus of elasticity, coefficient of friction and the oxidation stability of the coatings were also studied. Cutting forces at the tool/workpiece interface have been measured in situ. It was shown that the major cause of the cutting tool life and wear behavior improvement is the enhanced tribological adaptability of a TiAlCrN/WN coating. By means of adding W to the composition of TiAlCrN/WN nano-multilayered coatings, W–O tribo-films form in synergy to alumina and provide tool life improvement.
- Subjects :
- Engineering drawing
Materials science
Cutting tool
Young's modulus
Surfaces and Interfaces
General Chemistry
Nitride
Tribology
engineering.material
Condensed Matter Physics
Indentation hardness
Surfaces, Coatings and Films
symbols.namesake
Machining
Coating
Physical vapor deposition
Materials Chemistry
symbols
engineering
Composite material
Subjects
Details
- ISSN :
- 02578972
- Volume :
- 201
- Database :
- OpenAIRE
- Journal :
- Surface and Coatings Technology
- Accession number :
- edsair.doi...........d6e6bbba1cd552225fb747fad933d549