About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior at the Nanoscale VIII
|
| Presentation Title |
Evaluating intrinsic-extrinsic size effect relationship for small-scale mechanical tests using conventional and nanocrystalline copper |
| Author(s) |
Ramprashad Prabhakaran, Tanvi Anil Ajantiwalay, Mayur Pole, Arun Devaraj, Osman El Atwani , Stuart Maloy |
| On-Site Speaker (Planned) |
Ramprashad Prabhakaran |
| Abstract Scope |
Bulk scale (mm) tensile testing is commonly employed to evaluate yield stress, work hardening, and ductility. However, it is not always feasible. The recent development of test techniques such as nanoindentation, microcompression, and microtensile testing has resulted in a reduction of sample sizes (from mm to μm and nm length scales). However, it is important to address the question of comparability from nano- and micro-scale to bulk scale properties for engineering applications. It is also imperative to understand the effect of intrinsic (microstructure) and extrinsic (specimen dimensions) factors that can affect test results. We chose a model material system such as copper (grain size; nanocrystalline ~20 nm and conventional ~25 μm) and efforts are ongoing to perform mechanical testing at multiple length scales (bulk tensile, microhardness, nanoindentation, microcompression, and microtensile) to gain a fundamental understanding, develop a methodology, and understand the effect of intrinsic and extrinsic factors. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Copper / Nickel / Cobalt, |