Davydok, A.; Jaya, B. N.; Micha, J.-S.; Kirchlechner, C.: Can We Analyze the Full Strain Tensor During a micro-Compression Experiment? A µLaue case study on Germanium. Size & Strain
, Oxford, UK (2015)
Dehm, G.; Jaya, B. N.; Raghavan, R.; Kirchlechner, C.: Probing deformation and fracture of materials with high spatial resolution. Euromat 2015 - Symposium on In-situ Micro- and Nano-mechanical, Characterization and Size Effects
, Warsaw, Poland (2015)
Jaya, B. N.; Jayaram, V.: In-situ micro-scale fracture testing. International Conference on Electron Microscopy and XXXVI Annual Meeting of the Electron Microscope Society of India (EMSI)
, Mumbai, India (2015)
Jaya, B. N.; Kirchlechner, C.; Dehm, G.: Probing deformation and fracture of materials with high spatial resolution. EDSA 2015 – International Workshop on Stress Assisted Environmental Damage in Structural Materials, Chennai, India (2015)
Jaya, B. N.; Kirchlechner, C.; Dehm, G.: Are micro-fracture tests reliable? 2015 MRS Fall Meeting and Exhibit - Symposium T: Strength and Failure at the Micro and Nano-scale-From fundamentals to Applications
, Boston, MA, USA (2015)
Jaya, B. N.; Kirchlechner, C.; Dehm, G.: Design and development of fracture property measurement techniques at the small scale. ICAMS (RUB), Bochum, Germany (2014)
Jaya, B. N.; Kirchlechner, C.; Dehm, G.: Clamped beam geometry for fracture toughness testing of (Pt,Ni)Al bond coats at the micron-scale. AK- Rasterkraftmikroskopie und Nanomechanische Methoden, Düsseldorf, Germany (2014)
Malyar, N.; Jaya, B. N.; Micha, J.-S.; Dehm, G.; Kirchlechner, C.: Orientation dependence of dislocation transmission through twin-boundaries studied by in situ μLaue diffraction. ECI - Nano- and Micromechanical Testing in Materials Research and Development V, Albufeira, Portugal (2015)
Malyar, N.; Jaya, B. N.; Dehm, G.; Kirchlechner, C.: Dislocation transmission in bi-crystalline micro pillars studied by in situ SEM and in situ µLaue diffraction. Workshop „Understanding Grain Boundary Migration – Theory Meets Experiment”, Günzburg, Germany (2015)
Jaya, B. N.; Alam, Z.; Stauffer, D.; Asif, S.A. S.; Bhowmick, S.: High temperature in-situ study of mechanical properties of platinum aluminide bond coating. 2015 MRS Fall Meeting and Exhibit - Symposium T: Strength and Failure at the Micro and Nano-scale-From fundamentals to Applications , Boston, MA, USA (2015)
Jaya, B. N.; Kirchlechner, C.; Dehm, G.: Fracture toughness testing of brittle materials at the micron-scale. Thin Film & Small Scale Mechanical Behavior - Gordon Research Conference, Boston, MA, USA (2014)
Jaya, B. N.; Kirchlechner, C.; Dehm, G.: Fracture behavior of gradient PtNiAl bond coats at the micron-scale using in-situ microbeam bend studies. 13th European Nanomechanical User Group Meeting, Oxford, UK (2013)
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…
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.
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…
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.