Descriptors for high throughput in structural materials development (2019)

Steinbacher; M.; Alexe, G.; Baune, M.; Bobrov, I.; Bösing, I.; Clausen, B.; Czotscher, T.; Epp, J.; Fischer, A.; Langstädtler, L.; Meyer, D.; Menon, S.; Riemer, O.; Sonnenberg, H.; Thomann, A.; Tönjes, A.; Vollertsen F.; Wielki, N.; Ellendt, N.

MDPI Journal: high-throughput, 2019, 8, 22; doi:10.3390/ht8040022

www.mdpi.com/journal/highthroughput

Abstract

The development of novel structural materials with increasing mechanical requirements is a very resource-intense process if conventional methods are used. While there are high-throughput methods for the development of functional materials, this is not the case for structural materials. Their mechanical properties are determined by their microstructure, so that increased sample volumes are needed. Furthermore, new short-time characterization techniques are required for individual sampleswhich do not necessarilymeasure the desired material properties, but descriptors which can later be mapped on material properties. While universal micro-hardness testing is being commonly used, it is limited in its capability to measure sample volumes which contain a characteristic microstructure. We propose to use alternative and fast deformation techniques for spherical micro-samples in combination with classical characterization techniques such as XRD, DSC or micro magnetic methods, which deliver descriptors for the microstructural state.


Keywords: high throughput, structural materials, steel, descriptor, predictor, universal micro-hardness testing, XRD, shot peening, particle-oriented peening, speckle, DSC, dilatometry, compression, laser-induced shock wave, measuring instrument