Anne, G.Ramesh, M.R.Shivananda Nayaka, H.Arya, S.B.Sahu, S.2026-02-052017Journal of Materials Research, 2017, 32, 12, pp. 2249-22578842914https://doi.org/10.1557/jmr.2017.176https://idr.nitk.ac.in/handle/123456789/25597Accumulative roll bonding (ARB) process was used to develop Mg-6% Zn/Al and Mg-6% Zn/anodized-Al multilayered composites. Microstructural characterization was done using scanning electron microscopy, energy-dispersive X-ray spectroscopy, electron backscattered diffraction, and transmission electron microscopy. An average grain size measured in the roll-bonded layers of Al, anodized Al, and Mg-2% Zn was found to be 1.8 ?m, 1.6 ?m, and 0.6 ?m, respectively. Phases Al17Mg12, AlMg4Zn11, and Al<inf>2</inf>O<inf>3</inf> after 5-pass of ARB were confirmed by X-ray diffraction analysis. The Mg-6% Zn/Al and Mg-6% Zn/anodized Al composites exhibited tensile strengths ?252 MPa and ?256 MPa, respectively, after a 5-pass ARB process. Hardness of the individual layers of composite increased linearly with an increase in the number of ARB passes. Fractographs of the multilayered composite illustrated the ductile failure in Al and anodized Al layers and transgranular brittle fracture in Mg-6% Zn layers. © Materials Research Society 2017.AluminaAluminumBrittle fractureDuctile fractureElectron microscopyEnergy dispersive spectroscopyFractureGrain refinementGrain size and shapeHigh resolution transmission electron microscopyScanning electron microscopyTensile strengthTransmission electron microscopyX ray diffraction analysisX ray spectroscopyZincAccumulative roll bondingAccumulative roll bonding (ARB) processAlumina particlesEBSDElectron back-scattered diffractionEnergy dispersive X ray spectroscopyMicro-structural characterizationMulti-layered compositesRoll bonding