About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmentally Assisted Cracking: Theory and Practice
|
| Presentation Title |
A Nanoscale Tool for Crack Initiation Investigation |
| Author(s) |
Khalid Hattar |
| On-Site Speaker (Planned) |
Khalid Hattar |
| Abstract Scope |
All cracks in all environments initiate at the nanometer scale before the crack undergoes propagation and ultimately failure. Despite the importance of the initiation phase of crack propagation, it is often overlooked due to the scale of the crack in this phase. This presentation will highlight the capabilities of in-situ transmission electron microscopy (TEM) as a tool to investigate the initiation phase of crack propagation in a variety of environments. These experiments include, but are not limited to, corrosive, high cycle fatigue, and high temperature environments. By coupling in-situ quantitative nanomechanical testing with either in-situ TEM laser heating or environmental TEM (ETEM), it is now possible to create controlled experimental conditions to the performance test with nanometer resolution of environmentally assisted cracking in the laboratory. Both historical examples and recent advancements will be highlighted. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Environmental Effects, Thin Films and Interfaces, High-Temperature Materials |