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- W4387156619 abstract "This study delves into the behaviour of a thin TiN coating on a tool steel substrate material under dynamic and cyclic impacts through a comprehensive approach combining experimental testing and computational modelling. In dynamic impact tests, a pendulumbased setup investigates material responses under varying acceleration loads, revealing a distinctive ringing effect as the indenter bounces off the specimen's surface, with all plastic deformation concentrated during the initial impact. The study also quantifies dynamic hardness values, highlighting load-dependent behaviour and assessing the coating system's energy dissipation capabilities. In cyclic impact tests, materials experience permanent plastic deformation with each cycle, ultimately leading to coating failure. Chemical analysis identifies an interlayer between the coating and substrate, while cross-sectional analysis reveals the extent of coating damage due to cycling and load. A three-dimensional map is constructed, connecting acceleration load, sensed depth, and cycles to coating failure, and an empirical equation characterizes the relationship between depth and cycles before failure. The computational model scrutinizes traction component distribution during loading and unloading, with a focus on normal and shear tractions. The findings suggest the potential significance of normal traction in interface fatigue failure. Overall, offering implications for understanding and mitigating fatigue-related failures across various applications." @default.
- W4387156619 created "2023-09-30" @default.
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- W4387156619 date "2023-09-26" @default.
- W4387156619 modified "2023-09-30" @default.
- W4387156619 title "Estimation of fatigue strength of TiN coatings using cyclic micro-impact testing" @default.
- W4387156619 doi "https://doi.org/10.48550/arxiv.2309.15041" @default.
- W4387156619 hasPublicationYear "2023" @default.
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