Deformation And Fracture Analysis Of Coating-Substrate Systems

Archives of Metallurgy and Materials

M. Kot¹ 

[1] AGH UNIVERSITY OF SCIENCE AND TECHNOLOGY, FACULTY OF MECHANICAL ENGINEERING AND ROBOTICS, AL. A.MICKIEWICZA 30, 30-059 KRAKOW, POLAND;

关键词: Keywords: coatings;    deformation;    stress;    fracture;   

DOI  :  10.1515/amm-2015-0378

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

The paper presents the deformation and fracture analysis of coating-substrate systems during spherical indentation. CrN and TiN ceramic coatings with a thickness of 1-5 μm were tested using 10 to 200 μm tip radius spherical indenters. The typical results of indentation tests i.e. force-penetration depth curves were transformed into stress-strain curves using an algorithm developed by the author. The test results are compared with the results of numerical analysis conducted using FEM modelling. Such a complex analysis allows users to determine the level of tensile stress leading to the formation of cracks observed using SEM and TEM microscopy, and to define the failure maps for the coating substrate-systems.

【 授权许可】

Unknown