About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thin Films and Coatings: Properties, Processing and Applications
|
| Presentation Title |
Towards High-Throughput Fatigue Characterization of Thin Films |
| Author(s) |
Thomas Straub, Marvin Hagen Feuerhelm, Ali Riza Durmaz |
| On-Site Speaker (Planned) |
Thomas Straub |
| Abstract Scope |
As coatings proliferate in various industrial applications and often influence system reliability, the need to identify fatigue-resistant thin films increases. Traditional testing methods are time-consuming and require complex sample fabrication. Thus, they fail to meet the increasing demand for rapid assessment of fatigue performance. This work presents a gradient-based high-throughput method for accelerated fatigue testing of thin films, focusing on automation and efficient characterization. The system utilizes a comb-type sample and allows for automatically obtaining an S-N map for each bending beam. The quantitative local assessment is achieved by continuous image acquisition and analysis combined with a local image-based failure criterion. First results based on an aluminum thin film are presented. The high-throughput approach yields lifetimes comparable to results in literature for similar thin films. Deviations can be attributed to differences in grain size, purity and consequential mechanistic changes where degradation primarily involves the formation of inter-granular pores and microcracks. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Mechanical Properties, Thin Films and Interfaces |