The role of applied strain and volume percentage of components on mechanical properties and fracture toughness in multilayered Al/Mg composite fabricated by the accumulative roll bonding process

Abstract In this study, for the first time, effect of applied strains and volume percentage components layered composite on mechanical properties fracture toughness Al/Mg were investigated experimentally. The multilayered produced by accumulative roll bonding (ARB) process. For investigation, three composites with different percentages (25%, 50%, 66.6%Al) at (0.8–3.2) produced. experimental evaluation included microscopic examination optical microscope imaging, uniaxial tensile test, plane strain toughness. As all increased, plastic instability in magnesium reinforcement intensified, but due to low thickness Al layers compared Mg layer, uniform structure distribution was not achieved. Also, adding primary composite, a lower shear reinforcement, intensity layer decreased. reason, as diminished. By raising exerted strain, values strength layers, elongation increased. maximum amount each achieved same ARB pass (last pass) highest UTS reached 384.1 MPa 1.95% Al25%Mg, respectively. However, obtained value 41.4 MPa·m 1/2 Al33.3% third pass. present phenomena indicated that many factors such higher energy absorption, instability, ratio, affected summary, relationship between also percent always straightforward. It depends other factors, how distributed, workability, addition aluminum. has more significant increasing if they cause particles field or continuity layer.