Rethinking the role that the “step” in the load–displacement curves can play in measurement of fracture toughness for hard coatings

• Main Authors: Zhang, Xiaomin, Zhang, Sam
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2013
• Online Access: https://hdl.handle.net/10356/96590; http://hdl.handle.net/10220/10294
• Institution: Nanyang Technological University

The “step” in the load–displacement curves during nanoindentation of hard coatings has been regarded as a representation of the energy dissipated during fracture of the coating thus is used in measuring the fracture toughness of this coating. This paper scrutinizes the “step” and finds that the “ste...