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Chip characteristics for the tools coated by multilayer TiAlCrN/TiCrAlSi3Y2N multilayer coating (previous art): (a–c) new multilayer TiAlCrN/TiCrAlSi5Y5N coating: (d–f); (a,d) general view: chips curling; (b,e) chip undersurface morphology; (c,f) shear band lines of the previous state-of-the-art and the new coating.
