Mechanical Behavior of Different Constitutional Regions Characterized by Nanoindentation in a Bimodal Cu-Al Alloy

Abstract

By nanoindentation of different regions in a bimodal grain sized distribution Cu-Al eutectoid alloy, the mechanical behavior of micrometer-grained and ultrafine-grained region was investigated. And it is concluded from this study that the strain-hardening coefficient of micrometer-grained region could be critical to the ductility improvement of nanostructured material through bimodal mechanism.