Experimental-numerical failure analysis of the c-Al0.66Ti0.34N-M2 steel system applying instrumented indentation and extended finite element method
Por:
Gómez-Ovalle A.E., Torres M., Jimenez S.M.A., Alvarado-Orozco J.M., Espinosa-Arbeláez D.G., Gonzalez-Carmona J.M., Zárate-Medina J., Mondragón-Rodríguez G.C.
Publicada:
1 ene 2020
Resumen:
An experimental-numerical methodology for failure analysis of the c-Al0.66Ti0.34N/Interface/M2 steel coating system is proposed here. This c-Al0.66Ti0.34N coating was deposited by the arc-PVD technique. The values of the elastic modulus, the fracture energy release rate and the nano-hardness of the coating were obtained by nanoindentation. Normal and shear stress limits of the interface, as well as the adhesive and cohesive critical loads, were measured with the scratch test method. A finite element analysis, using the experimental mechanical properties, was carried out to understand the relationship between the irreversible work vs. depth curve and the mechanical failure evolution of the coating-substrate system, associating the pop-in with nucleation, crack growth and cracking pattern. Extended finite element method (XFEM) was applied for modeling of the mechanical behavior of the coating; the cohesive zones approach was applied for modeling the interface and the Ramberg-Osgood law for modeling the substrate. This approach proposes an experimental-numerical methodology for failure analysis of hard coatings (monolithic body) allowing to calculate fracture energy of the coating material and to model cracking patterns caused by contact mechanics. This work is the first step to answer questions about multi-scale approaches for multi-functional multi-layer coatings to push their enhancements and further applications. © 2020 Elsevier B.V.
Filiaciones:
Center for Engineering and Industrial Development, CIDESI, Surface Engineering Department, Querétaro, Av. Pie de la Cuesta 702, Santiago de Querétaro, 76125, Mexico
Consorcio de Manufactura Aditiva, CONMAD, Av. Pie de la Cuesta 702, Desarrollo San Pablo, Querétaro, Mexico
National Council for Science and Technology, (CONACYT), National Center for Aeronautics Technologies (CENTA), Carretera Estatal 200, Parque Aeroespacial Querétaro, Querétaro, Colón 76270, Mexico
Metallurgy and Materials Research Institute, Universidad Michoacana de San Nicolás de Hidalgo, Ciudad Universitaria, Av. Francisco J. Mujica, U Bldg., Morelia, Michoacán 58030, Mexico
|