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High-performance nano-structured CVD TiAlN coated cutting tools for difficult-to-cut materials

Reference number
Coordinator Chalmers Tekniska Högskola AB
Funding from Vinnova SEK 3 000 000
Project duration November 2021 - November 2024
Status Ongoing
Venture The strategic innovation programme for Metallic material
Call Metallic materials - Non-thematic call 2021

Purpose and goal

The aim of this project is to acquire the essential knowledge needed to develop novel coating systems for cutting tools to be used for machining difficult-to cut materials. The project goals are: To understand the details of the microstructure of CVD TiAlN coatings. To couple the mechanical properties and machining performance to the detailed microstructure of the coatings. To understand the phase transformation of the metastable nanolamellae phases and their influence on the coatings’ properties.

Expected results and effects

The expected outcome from the project is to provide fundamental knowledge needed in order to tailor-make a next generation of high-performance nano-structured CVD TiAlN coatings for machining of difficult-to-cut materials.

Planned approach and implementation

Novel hard nano-structured TiAlN coatings will be deposited on cemented carbide cutting tool inserts by CVD. We will build a fundamental understanding that can make it possible to machine difficult-to-cut materials, which today is very hard and challenging. Advanced characterization, including scanning transmission electron microscopy, will be carried out to reveal the complex microstructure of these self-organizing, metastable nanolamellae coatings. As-deposited coatings, as well as coatings exposed to heat-treatments and mechanical tests will be studied

The project description has been provided by the project members themselves and the text has not been looked at by our editors.

Last updated 29 November 2021

Reference number 2021-04008

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