Asquith D., Yerokhin A., James N., Yates J., Matthews A.
Department of Engineering and Mathematics, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, United Kingdom; Department of Materials Science and Engineering, University of Sheffield, Portobello Street, Sheffield S1 3JD, United Kingdom; School of Marine Science and Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom; Department of Mechanical Engineering, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa; Centre for Modelling and Simulation, School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, United Kingdom
Asquith, D., Department of Engineering and Mathematics, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, United Kingdom; Yerokhin, A., Department of Materials Science and Engineering, University of Sheffield, Portobello Street, Sheffield S1 3JD, United Kingdom; James, N., School of Marine Science and Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom, Department of Mechanical Engineering, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa; Yates, J., Centre for Modelling and Simulation, School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, United Kingdom; Matthews, A., Department of Materials Science and Engineering, University of Sheffield, Portobello Street, Sheffield S1 3JD, United Kingdom
Fatigue failure in hard oxide-coated aluminum is usually driven by rapid short crack propagation from the interface through the substrate; mitigation of this is possible by introducing interfacial compressive stresses. Combining cold work with hard oxide coating can improve their performance under conditions of simultaneous wear, corrosion, and fatigue. Three-dimensional strain fields in an aluminum alloy with combined cold work and PEO coating have been measured and mechanisms for stress redistribution presented. These comprise material consumption, expansive growth of oxide layers, and local annealing. © 2013 The Minerals, Metals & Materials Society and ASM International.