| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Integration between Modeling and Experiments for Crystalline Metals: From Atomistic to Macroscopic Scales IV
|
| Presentation Title |
Slip Transmission and Voiding during Slip Band Intersections in Fe70Ni10Cr20 Stainless Steel |
| Author(s) |
Xiaowang Zhou, Richard Skelton, Ryan B. Sills, Christopher San Marchi |
| On-Site Speaker (Planned) |
Xiaowang Zhou |
| Abstract Scope |
Slip transmission through interfaces fundamentally determines mechanical properties of crystalline materials. Molecular dynamics simulations of eight band intersections in Fe70Ni10Cr20 alloys revealed that secondary bands always transmit into epsilon bands more easily than into twin bands. While this is surprising because the epsilon-phase has a different crystal structure from the matrix, our finding that twins do not possess easy crystallographic pathways for transmission explains this phenomenon. We also found that the band intersection regions preferentially nucleate voids. These provide guidelines to understand materials. For example, since hydrogen promotes epsilon-bands, our findings can help understand hydrogen compatibility. |