OBSERVATIONS OF DEFORMATION AND FAILURE MECHANISMS IN TiN COATINGS AFTER HARDNESS INDENTATION AND SCRATCH TESTING

Abstract

A technique for examining microstructure is described which enables observation of fracture sections through hardness indentations and scratch tracks on TiN coatings, thereby clarifying the nature of the deformation and fracture behaviour caused by these tests. Particular use is made of high resolution scanning electron microscopy to observe fine detail, with backscattered mode employed for maximum crack contrast.

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