Identification of Characteristic Values in Impulse-Based Processes Using Small Specimens

Abstract

AbstractSuitable approaches are needed for rapid and cost-efficient materials development. High-throughput experimentation reduces the identification time of suitable material compositions. One approach is to use small specimen geometries to save additional production costs. Hence, research is continuously being conducted on a new hardness test based on laser-induced shock waves. Thus far, characteristic values from the induced indentations have been extracted, which correlate with hardness and tensile strength. However, the indentation result varies in dependence of the specimen size and mass. This condition hinders the correlation between characteristic values and material properties. Thus, the goal was to induce similar indentation results to minimum specimen size. Herein, different mounting materials and methods were investigated. The created indentations were compared with those induced in large specimens. Essential mounting parameters were derived from the findings. Consequently, small specimens can be used for material characterization by considering these mounting parameters.