Lee, D.-H.; Zhao, Y.; Lee, S. Y.; Ponge, D.; Aime Jägle, E.: Hydrogen-assisted failure in Inconel 718 fabricated by laser powder bed fusion: The role of solidification substructure in the embrittlement. Scripta Materialia 207, 114308 (2022)
Wang, Z.; Lu, W.; Min Song, F. A.; Ponge, D.; Raabe, D.; Li, Z.; Li, Z.: High stress twinning in a compositionally complex steel of very high stacking fault energy. Nature Communications 13, 3598 (2022)
Aota, L. S.; Bajaj, P.; Zilnyk, K. D.; Ponge, D.; Zschommler Sandim, H. R.: The origin of abnormal grain growth upon thermomechanical processing of laser powder-bed fusion alloys. Materialia 20, 101243 (2021)
Varanasi, R. S.; Zaefferer, S.; Sun, B.; Ponge, D.: Localized deformation inside the Lüders front of a medium manganese steel. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 824, 141816 (2021)
Benzing, J. T.; Luecke, W. E.; Mates, S. P.; Ponge, D.; Raabe, D.; Wittig, J. E.: Intercritical annealing to achieve a positive strain-rate sensitivity of mechanical properties and suppression of macroscopic plastic instabilities in multi-phase medium-Mn steels. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 803, 140469 (2021)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
In this ongoing project, we investigate spinodal fluctuations at crystal defects such as grain boundaries and dislocations in Fe-Mn alloys using atom probe tomography, electron microscopy and thermodynamic modeling [1,2].
The aim of the Additive micromanufacturing (AMMicro) project is to fabricate advanced multimaterial/multiphase MEMS devices with superior impact-resistance and self-damage sensing mechanisms.
The Ni- and Co-based γ/γ’ superalloys are famous for their excellent high-temperature mechanical properties that result from their fine-scaled coherent microstructure of L12-ordered precipitates (γ’ phase) in an fcc solid solution matrix (γ phase). The only binary Co-based system showing this special type of microstructure is the Co-Ti system…
We will investigate the electrothermomechanical response of individual metallic nanowires as a function of microstructural interfaces from the growth processes. This will be accomplished using in situ SEM 4-point probe-based electrical resistivity measurements and 2-point probe-based impedance measurements, as a function of mechanical strain and…