Ponge, D.: Charakterisierung des Umwandlungsverhaltens bei der Simulation moderner Direktwalzprozesse. Lecture at the Sitzung des Werkstoffausschusses (Unterausschuss für Metallographie, Werkstoffanalytik und –simulation), Stahlinstitut VDEh, Düsseldorf (2004)
Ponge, D.: Bericht aus der Arbeitsgruppe Weiterentwicklung Umformdilatometer. Lecture at the Sitzung des Werkstoffausschusses (Arbeitskreis Umformdilatometrie), Stahlinstitut VDEh, Düsseldorf, Germany (2004)
Song, R.; Ponge, D.; Kaspar, R.: Microstructure and mechanical properties of ultrafine grained steels. Lecture at the workshop KUL-UGent-RWTH-MPIE, Gent University (2004)
Ponge, D.; Song, R.; Kaspar, R.: The effect of Mn on the microstructure and mechanical properties after heavy warm rolling of C-Mn steel. Lecture at the 2004 TMS annual meeting in Charlotte, North Carolina, USA (2004)
Ponge, D.: Arbeiten des MPI für Eisenforschung auf dem Gebiet der feinkörnigen Stähle. Lecture at the Sitzung des Arbeitsausschusses des Werkstoffausschusses, Stahlinstitut VDEh, Düsseldorf, Germany (2004)
Ponge, D.: Hochfeste Baustähle und deren schweißtechnische Verarbeitung. Berufsfortbildung Deutscher Verband für Schweißen und verwandte Verfahren e. V., Hamburg (2003)
Storojeva, L.; Kaspar, R.; Ponge, D.: Ferritic-Pearlitic Steel with Deformation Induced Spheroidized Cementite. Lecture at the International Conference on Processing & Manufacturing of Advanced Materials THERMEC'2003, Leganes, Madrid, Spain (2003)
Kwiatkowski da Silva, A.; Ponge, D.; Inden, G.; Gault, B.; Raabe, D.: Physical Metallurgy of segregation, austenite reversion, carbide precipitation and related phenomena in medium Mn steels. Gordon Research Conference: Physical Metallurgy, Biddeford, ME, USA (2017)
Neddermann, P.; Ponge, D.; Raabe, D.: Influence of Chromium on the Low Temperature Austenite Reversion through Local Equilibrium in Martensitic Stainless Steel. MSE 2014, Darmstadt, Germany (2014)
Wang, M.; Tasan, C. C.; Ponge, D.; Kostka, A.; Raabe, D.: Size effects on mechanical stability of metastable austenite. GDRi CNRS MECANO General Meeting on the Mechanics of Nano-Objects, MPIE, Düsseldorf, Germany (2013)
Yan, D.; Tasan, C. C.; Ponge, D.; Diehl, M.; Roters, F.; Hartmaier, A.; Raabe, D.: Experimental-Numerical Analysis of Stress and Strain Partitioning in Dual Phase Steel. 10th Materials Day, Joint workshop of the Materials Research Department (MRD) and the IMPRS-SurMat, Bochum, Germany (2012)
Dmitrieva, O.; Ponge, D.; Millán, J.; Choi, P.; Raabe, D.: Study of local chemical gradients in advanced precipitation hardened TRIP steel. 52nd International Field Emission Symposium IFES 2010, Sydney, Australia (2010)
Calcagnotto, M.; Ponge, D.; Adachi, Y.; Raabe, D.: Effect of grain refinement on strength and toughness in dual-phase steels. 2nd International Symposium on Steel Science ISSS 2009, Kyoto, Japan (2009)
Hydrogen in aluminium can cause embrittlement and critical failure. However, the behaviour of hydrogen in aluminium was not yet understood. Scientists at the Max-Planck-Institut für Eisenforschung were able to locate hydrogen inside aluminium’s microstructure and designed strategies to trap the hydrogen atoms inside the microstructure. This can…
Oxidation and corrosion of noble metals is a fundamental problem of crucial importance in the advancement of the long-term renewable energy concept strategy. In our group we use state-of-the-art electrochemical scanning flow cell (SFC) coupled with inductively coupled plasma mass spectrometer (ICP-MS) setup to address the problem.
For understanding the underlying hydrogen embrittlement mechanism in transformation-induced plasticity steels, the process of damage evolution in a model austenite/martensite dual-phase microstructure following hydrogenation was investigated through multi-scale electron channelling contrast imaging and in situ optical microscopy.
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…
This project aims to investigate the influence of grain boundaries on mechanical behavior at ultra-high strain rates and low temperatures. For this micropillar compressions on copper bi-crystals containing different grain boundaries will be performed.
Hydrogen induced embrittlement of metals is one of the long standing unresolved problems in Materials Science. A hierarchical multiscale approach is used to investigate the underlying atomistic mechanisms.
Hydrogen embrittlement affects high-strength ferrite/martensite dual-phase (DP) steels. The associated micromechanisms which lead to failure have not been fully clarified yet. Here we present a quantitative micromechanical analysis of the microstructural damage phenomena in a model DP steel in the presence of hydrogen.
This project will aim at developing MEMS based nanoforce sensors with capacitive sensing capabilities. The nanoforce sensors will be further incorporated with in situ SEM and TEM small scale testing systems, for allowing simultaneous visualization of the deformation process during mechanical tests
The project aims to study corrosion, a detrimental process with an enormous impact on global economy, by combining denstiy-functional theory calculations with thermodynamic concepts.