Two-step penetration: a reliable method for the measurement of mechanical properties of hard coatings
作者： Jiawan Tian , Zenghu Han , Qianxi Lai , Xiaojiang Yu , Geyang Li
DOI: 10.1016/S0257-8972(03)00772-2
关键词: Materials science 、 Indentation hardness 、 Coating 、 Composite material 、 Two step 、 Indentation 、 Tin 、 Elastic modulus 、 Penetration (firestop) 、 Substrate deformation 、 Forensic engineering
摘要: A two-step penetration method using the microindentation technique is presented to investigate mechanical properties of hard coatings in this article. This employs a large-load indentation step, first exhibit influences substrate deformation and coating thickness on measured hardness values, then selects small load, based results step perform measurement. Since with measurement will not be affected by substrate, elastic modulus can obtained precisely. Experiments TiN deposited high-speed steel shows that method, accurately reliably.
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