|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Mechanical Behavior of Nanostructured Materials
||L-134: Mechanical Characterization of fcc and bcc Metals by Extraction of Nanoindentation Stress-strain Curves
||Alexander Leitner, Verena Maier-Kiener, Reinhard Fritz, Daniel Kiener
|On-Site Speaker (Planned)
The extraction of stress-strain curves from nanoindentation measurements has been widely investigated and would be a beneficial tool, especially when material is limited. Various approaches, such as the use of different shaped indenter tips as well as finite element simulations have shown promising results. However, a direct comparison of those methods on a broad range of materials and microstructures has not yet been examined. This study will provide new insights into the feasibility of these techniques by investigating a comprehensive set of materials including face-centered cubic and body-centered cubic metals with microstructures spanning from a single crystalline to a nanocrystalline length scale. We will demonstrate that once the ratio of yield strength to modulus and exact tip shape are considered in the analysis, nanoindentation is a unique and convenient tool to extract true stress-strain curves of metals at a small-scale, and that the mentioned approaches deliver comparable results.
||Planned: Supplemental Proceedings volume