Interfacial indentation test of FeB/Fe2B coatings
作者： I. Campos-Silva , J. Martínez-Trinidad , M.A. Doñu-Ruíz , G. Rodríguez-Castro , E. Hernández-Sánchez
DOI: 10.1016/J.SURFCOAT.2011.08.017
关键词:
摘要: Abstract The present study uses interfacial indentation testing to estimate the adhesion of FeB/Fe2B coating formed on surface borided AISI 316 steel. This technique creates and propagates a crack along interface defines apparent fracture toughness, which can then be related mechanical support aforementioned interface. boriding process was performed steel by means powder-pack method at temperatures 1123, 1173, 1223 1273 K with 2, 4, 6, 8 10 h for each temperature. Young's modulus layer obtained Knoop microindentation constant load. Vickers used generate microcracks varying loads. applied load, modulus, hardness, lateral lengths generated from corners indentations, depth FeB layer, were determine toughness varied between 3.56 4.45 MPa m . Finally, intensity residual stress estimated as function thickness.
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