Session: 04-11-03: Advanced Materials Processing and Property Characterization

Paper Number: 147020

147020 - Multi-Resolution High-Throughput Mechanical Characterization of Heterogeneous Materials 

Our research group has developed and demonstrated novel multi-resolution protocols capable of extracting indentation stress-strain (ISS) curves from spherical indentations on individual microscale constituents (e.g., phases, grains) as well as bulk properties of heterogeneous materials. These measurements span spatial resolutions ranging from about 100 nms to about 500 microns. These protocols open new research avenues for rapid screening of candidate new materials and processing histories in the development of structural materials exhibiting desired overall mechanical properties. Furthermore, these multi-resolution spherical indentation protocols can be combined with suitable microscopy and image analyses protocols to facilitate critical evaluation and advancement of physics-based composite models. Case studies involving a wide range of multiphase materials and their responses at multiple material structure length scales will be discussed. These results demonstrate the many advantages of these new protocols in rapid screening of materials/process design spaces and the critical evaluation of composite models, while requiring only small volumes of the samples.

Presenting Author: Surya Kalidindi Georgia Tech

Presenting Author Biography: Surya R. Kalidindi is a Regents Professor and Rae S. and Frank H. Neely Chair Professor in the George W. Woodruff School of Mechanical Engineering with joint appointments in the School of Computational Science and Engineering and the School of Materials Science and Engineering at Georgia Institute of Technology, Georgia, USA. Surya’s research efforts have made seminal contributions to the fields of crystal plasticity, microstructure design, high-throughput mechanical characterization and materials informatics. Surya has been elected a Fellow of ASM International, TMS, and ASME. He has also been recognized with the Alexander von Humboldt Research Award, the Vannever Bush Faculty Fellow, and the Khan International Award. His research currently has a h-index of 93 (as per Google Scholar).

Authors:

Surya Kalidindi Georgia Tech