Abstract:Abstract. TiAlN and CrAlN coatings were prepared by physical vapor deposition (PVD) on Sialon ceramic cutting tools. The results illustrated that the surface morphology of TiAlN coating was smoother than that of CrAlN coating. The thickness of TiAlN coating was about 1 µm, which was thicker than that of CrAlN coating (about 0.5µm). However, the hardness of TiAlN coating was lower (30.1 GPa) than that of CrAlN coating (37.5 GPa). Also the elastic modulus of TiAlN coating (346.9 GPa) was also lower than that of … Show more
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