Koyama, M.; Springer, H.; Merzlikin, S. V.; Tsuzaki, K.; Akiyama, E.; Raabe, D.: Hydrogen embrittlement associated with strain localization in a precipitation-hardened Fe–Mn–Al–C light weight austenitic steel. International Journal of Hydrogen Energy 39 (9), pp. 4634 - 4646 (2014)
Koyama, M.; Akiyama, E.; Tsuzaki, K.; Raabe, D.: Hydrogen-assisted failure in a twinning-induced plasticity steel studied under in situ hydrogen charging by electron channeling contrast imaging. Acta Materialia 61 (12), pp. 4607 - 4618 (2013)
Akiyama, E.; Stratmann, M.; Hassel, A. W.: Discrete electrochemical transients of aluminium alloys generated by slurry jet impingement. J. Phys. D: Appl. Phys. 39, pp. 3157 - 3164 (2006)
Akiyama, E.; Hassel, A. W.; Stratmann, M.: A study of current transients caused by single particle impact on electrodes. In: Proceed. Asian Pacific Corr. Contr. Conf. 13, pp. C02 1 - C02 8. (2003)
Koyama, M.; Tasan, C. C.; Akiyama, E.; Tsuzaki, K.; Raabe, D.: Influence of hydrogen on dual-phase steel micro-mechanics. 2nd International Workshop on Physics-Based Modelling of Material Properties & Experimental Observations, Antalya, Turkey (2013)
Hassel, A. W.; Akiyama, E.; Smith, A.; Tan, K. S.; Stratmann, M.: Dynamic and Quasi Static Particle Impingement in Flow Corrosion. COST F2 2nd Workshop „Local Flow Effects in Hydrodynamic Systems”, Paris, France (2003)
Akiyama, E.; Hassel, A. W.; Stratmann, M.: A study of current transients caused by single particle impact on electrodes. 13th Asian Pacific Corrosion Control Conference, Osaka, Japan (2003)
Hassel, A. W.; Akiyama, E.; Smith, A.; Tan, K. S.; Stratmann, M.: Dynamic and Quasi Static Particle Impingement in Flow Corrosion. Seminar an der Graduate School of Engineering der Universität von Hokkaido, Sapporo, Japan (2003)
Akiyama, E.; Hassel, A. W.; Stratmann, M.: Measurements of electrochemical responses caused by a single particle impact in slurry impingement. 50th Zairyo-to-Kankyo Meeting, Okinawa, Japan (2003)
The aim of this project is to correlate the point defect structure of Fe1-xO to its mechanical, electrical and catalytic properties. Systematic stoichiometric variation of magnetron-sputtered Fe1-xO thin films are investigated regarding structural analysis by transition electron microscopy (TEM) and spectroscopy methods, which can reveal the defect…
Nickel-based alloys are a particularly interesting class of materials due to their specific properties such as high-temperature strength, low-temperature ductility and toughness, oxidation resistance, hot-corrosion resistance, and weldability, becoming potential candidates for high-performance components that require corrosion resistance and good…
In this project, we aim to enhance the mechanical properties of an equiatomic CoCrNi medium-entropy alloy (MEA) by interstitial alloying. Carbon and nitrogen with varying contents have been added into the face-centred cubic structured CoCrNi MEA.
Femtosecond laser pulse sequences offer a way to explore the ultrafast dynamics of charge density waves. Designing specific pulse sequences may allow us to guide the system's trajectory through the potential energy surface and achieve precise control over processes at surfaces.
The aim of this project is to develop novel nanostructured Fe-Co-Ti-X (X = Si, Ge, Sn) compositionally complex alloys (CCAs) with adjustable magnetic properties by tailoring microstructure and phase constituents through compositional and process tuning. The key aspect of this work is to build a fundamental understanding of the correlation between…
In this project, we aim to achieve an atomic scale understanding about the structure and phase transformation process in the dual-phase high-entropy alloys (HEAs) with transformation induced plasticity (TRIP) effect. Aberration-corrected scanning transmission electron microscopy (TEM) techniques are being applied ...
Solitonic excitations with topological properties in charge density waves may be used as information carriers in novel types of information processing.
In this project, links are being established between local chemical variation and the mechanical response of laser-processed metallic alloys and advanced materials.