Acoustic emission features at deformation of aluminum alloys with different strain behavior types

Abstract

The analysis of the deformation and fracture peculiarities of two kinds of aluminum alloys with different deformation behavior types using AE method was carried out. It is shown that an effective description of deformation mechanisms with the use of AE method can be made by sorting and identification of AE signal sources. Strain stages identified through the strain hardening diagrams are consistent with AE activity graphs for different types of AE sources at these stages. AE activity at the stage of strain hardening substantially depends on heterogeneous structure characteristics of materials under loading.