Segregation effects of interstitial and substitutional elements at grain boundaries in ferritic iron and their effect on liquid metal embrittlement

Publications of Swetha Pemma

Journal Article (2)

1.
Journal Article
Brink, T.; Langenohl, L.; Pemma, S.; Liebscher, C.; Dehm, G.: Stable nanofacets in [111] tilt grain boundaries of face-centered cubic metals. Physical Review Materials 8 (6), 063606 (2024)
2.
Journal Article
Pemma, S.; Janisch, R.; Dehm, G.; Brink, T.: Effect of the atomic structure of complexions on the active disconnection mode during shear-coupled grain boundary motion. Physical Review Materials 8 (6), 063602 (2024)

Talk (9)

3.
Talk
Brink, T.; Pemma, S.; Choi, Y.; Dehm, G.: From the microscopic to the macroscopic grain boundary: The role of line defects. 2026 MRS Spring Meeting & Exhibit, Honolulu, HI, USA (2026)
4.
Talk
Brink, T.; Pemma, S.; Langenohl, L.; Saood, S.; Choi, Y.; Janisch, R.; Liebscher, C.; Dehm, G.: Grain boundary thermodynamics away from idealized boundaries: How line defects affect stability. DPG-Frühjahrstagung 2026, Dresden, Germany (2026)
5.
Talk
Brink, T.; Langenohl, L.; Pemma, S.; Liebscher, C.; Dehm, G.: Grain boundaries in fcc metals with energetically stable nanofacets. The 11th International Conference on Multiscale Materials Modeling, Prague, Czech Republic (2024)
6.
Talk
Brink, T.; Pemma, S.; Langenohl, L.; Ahmad, S.; Liebscher, C.; Dehm, G.: Complexions in fcc metals: Insights from atomistic simulations. 2nd Materials Science Colloquium, Lech am Arlberg, Austria (2023)
7.
Talk
Pemma, S.; Janisch, R.; Dehm, G.; Brink, T.: Deformation mechanism of complexions in a Cu grain boundary under shear. FEMS EUROMAT 2023, Frankfurt am Main, Germany (2023)
8.
Talk
Pemma, S.; Janisch, R.; Dehm, G.; Brink, T.: Disconnection activation in complexions of a Cu grain boundary under shear. 19th International Conference on Diffusion in Solids and Liquids (DSL-2023), Heraklion, Greece (2023)
9.
Talk
Pemma, S.; Brink, T.; Janisch, R.; Dehm, G.: Stress driven grain boundary migration for different complexions of a Cu tilt grain boundary. Materials Science and Engineering Congress 2022, Darmstadt, Germany (2022)
10.
Talk
Pemma, S.; Janisch, R.; Dehm, G.; Brink, T.: Atomistic simulation study of grain boundary migration for different complexions in copper. DPG-Tagung, Virtual (2021)
11.
Talk
Brink, T.; Frommeyer, L.; Freitas, R.; Frolov, T.; Pemma, S.; Liebscher, C.; Dehm, G.: Diffusionless congruent grain boundary phase transitions in metals: Simulation and experimental imaging. 2021 Fall Meeting of the European Materials Research Society , Virtual (2021)

Poster (1)

12.
Poster
Pemma, S.; Janisch, R.; Dehm, G.; Brink, T.: Grain boundary structure determines shear-coupled migration mode. The 11th International Conference on Multiscale Materials Modeling, Prague, Czech Republic (2024)

Thesis - PhD (1)

13.
Thesis - PhD
Pemma, S.: Effect of grain boundary atomic structure on shear coupled grain boundary motion in copper using atomistic simulation. Dissertation, Ruhr-Universität Bochum, Bochum, Germany (2025)

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