期刊
SURFACE & COATINGS TECHNOLOGY
卷 366, 期 -, 页码 266-276出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2019.03.041
关键词
Nanoindentation; Continuous stiffness measurement; Nanomechanical properties; Artificial neural network
资金
- Australian Government Research Training Program Scholarship
- Hanyang University's basic science research program under the National Research Foundation (NRF) of Korea - Ministry of Science, ICT and Future Planning [2015R1A5A1037548]
Instrumented indentation continuous stiffness measurement (CSM) method is applied to investigate the nano mechanical properties of the aluminum and zinc arc thermal spray aluminum coating. This study shows that individual component within a multi-phase material can be differentiated through the stiffness characteristic transition in a single indentation. Using this approach, the nanomechanical properties of the individual phases can be isolated and quantified using statistical deconvolution method. This paper further demonstrates that through the use of computational simulation and artificial neural network, the nanomechanical properties can be predicted based on experimental nanoindentation loading and unloading, where the load-unload responses of an individual material phase can be replicated once the nanomechanical properties are made known. This study shows that CSM method is able to predict the material's elasticity and plasticity properties, including elastic modulus, hardness, yield strength and work hardening, of individual aluminum and zinc components of the thermal arc spray coating.
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