Nedbrytningsmekanismer för CVD-skikt vid metallbearbetning

Research Project, 2017 – 2021

The long-term objective with the present application is to generate a fundamental understanding of the degradation mechanisms in hard CVD coatings during metal cutting. This knowledge will serve as a platform to enhance future competitiveness for Swedish industry in the machining sector. The results will be shared with the academic society through scientific papers and conference presentations in order to develop the knowledge of the physics and chemistry controlling coating degradation, thus enhancing future academic research. •"We will use a combined approach of carefully controlled metal machining processes, advanced materials characterization at different length scales (from mm to atomic resolution), and various modeling techniques. •"The degradation mechanisms will be related to the cutting process based on the analytical observations and aided by the multiscale modeling results. The combined effort will be an iterative process where degradation models can be suggested after one cycle of investigations/modeling and refined/altered in the next. •"This type of approach, with mechanism descriptions on the atomic level, has never been done earlier for hard CVD coatings, but the joint skills of the applicants and the recent advancements in the experimental and modeling fields make it possible for this step forward in the understanding of degradation mechanisms in metal machining and the subsequent design of the next generation high-performance CVD coatings.