Working efficiency of cutting tools with multilayer nano-structured Ti-TiCN-(Ti,Al)CN and Ti-TiCN-(Ti,Al,Cr)CN coatings: Analysis of cutting properties, wear mechanism and diffusion processes

The study investigated the performance properties of a carbide tool with multilayer composite nano-structured Ti-TiCN-TiAlCN and Ti-TiCN-TiAlCrCN coatings, obtained by filtered cathodic vacuum-arc deposition (FCVAD). The study considered the structure of these coatings and their basic mechanical pro...

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Bibliographic Details
Published in:Surface & coatings technology 2017-12, Vol.332, p.198-213
Main Authors: Vereschaka, Alexey A., Grigoriev, Sergey N., Sitnikov, Nikolay N., Oganyan, Gaik V., Batako, Andre
Format: Article
Language:English
Subjects:
Adhesion tests
Adhesive bonding
Adhesive strength
Aluminum
Arc deposition
Carbide tools
Cathodic coating (process)
Crack
Cutting speed
Cutting tools
Cutting wear
Diffusion
Diffusion coating
Diffusion coatings
Fracture
Kinematics
Mechanical properties
Metals
Physical vapor deposited (PVD) coatings
Studies
Substrates
Titanium carbonitride
Tool life
Tool wear
Turning (machining)
Wear
Wear mechanisms
Wear resistance
Wear-resistant coatings
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Summary:The study investigated the performance properties of a carbide tool with multilayer composite nano-structured Ti-TiCN-TiAlCN and Ti-TiCN-TiAlCrCN coatings, obtained by filtered cathodic vacuum-arc deposition (FCVAD). The study considered the structure of these coatings and their basic mechanical properties (hardness, strength of adhesion bond to substrate, and elemental composition). The study included cutting tests of carbide tools with those coatings in comparison with uncoated tools and tools with Ti-TiN coating. The tests were carried out during the turning of steel C45 at various cutting speeds (300, 350, and 400m/min). The study included research of the kinematics of tool wear and the nature of cracking in the structure of coatings. Diffusion processes in the system of substrate-coating tool material during machining were also studied. •Study of the properties and structure of Ti-TiCN-TiAlCN and Ti-TiCN-TiAlCrCN•Cutting tests of tools with the coatings under study at different cutting speeds•Mechanisms of wear and cracking in coatings•Diffusion processes in coated tools during cutting of metal
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2017.10.027