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Scientific Assistant

M.Sc. Johannes L. Otto

Main activities

Overview of research projects in group steels

Publications and presentations

5) Penyaz, M.; Otto, J. L.; Popov, N.; Ivannikov, A.; Schmiedt-Kalenborn, A.; Walther, F.; Kalin, B.:
Microstructure influence on corrosion resistance of brazed AISI 304L/NiCrSiB joints.
Metals and Materials International, (2021) 1-10. https://doi.org/10.1007/s12540-021-00974-z

4) Otto, J. L.; Penyaz, M.; Schmiedt-Kalenborn, A.; Ivannikov, A.; Kalin, B.; Walther, F.:
Influence of alloying and holding time on microstructure and corrosion fatigue behaviour of brazed AISI 304L/NiCrSiB joints.
4. Symposium Materialtechnik, (2021) 1-10. https://doi.org/10.21268/20210519-3 - Download

3) Otto, J. L.; Penyaz, M.; Möhring, K.; Gerdes, L.; Schaum, T.; Ivannikov, A.; Schmiedt-Kalenborn, A.; Kalin, B.; Walther, F.:
Microstructure, residual stresses, and strain-rate-dependent deformation and fracture behavior of AISI 304L joints brazed with NiCrSiB filler metals.
Metals 11 (4), 593 (2021) 1-24. https://doi.org/10.3390/met11040593 - Download

2) Lingnau, L. A.; Otto, J. L.; Schmiedt-Kalenborn, A.; Walther, F.:
Prüffrequenz- und chargenabhängiges Ermüdungs- und Korrosionsermüdungsverhalten der Nickellötverbindung 1.4307/Ni620.
Werkstoffprüfung 2020 – Werkstoffe und Bauteile auf dem Prüfstand (2020), Hrsg.: J. B. Langer und M. Wächter. https://doi.org/10.48447/WP-2020-014

1) Otto, J. L.; Penyaz, M.; Schmiedt-Kalenborn, A.; Knyazeva, M.; Ivannikov, A.; Kalin, B.; Walther, F.:
Effect of phase formation due to holding time of vacuum brazed AISI 304L/NiCrSiB joints on corrosion fatigue properties.
Journal of Materials Research and Technology 9, 5 (2020) 10550-10558. https://doi.org/10.1016/j.jmrt.2020.07.047 - Download

 

List of all publications

4) Otto, J. L. (V.); Penyaz, M.; Schmiedt-Kalenborn, A.; Ivannikov, A.; Kalin, B.; Walther, F.:
Influence of alloying and holding time on microstructure and corrosion fatigue behaviour of brazed AISI 304L/NiCrSiB joints.
4. Symposium Materialtechnik des Clausthaler Zentrums für Materialtechnik, Web-Konferenz, 25.-26. Febr. (2021).

3) Penyaz, M. (V.); Otto, J. L.; Ivannikov, A.; Schmiedt-Kalenborn, A.; Knyazeva, M.; Walther, F.; Kalin, B.:
Influence of the structural-phase state of AISI 304 / NiCrSiB brazed joints on corrosion fatigue.
18th International Conference “New Materials”, Non-equilibrium states: theory, production and application, Web Conference, 14.-17. Dec. (2020)

2) Lingnau, L. A. (V.); Otto, J. L.; Schmiedt-Kalenborn, A.; Walther, F.:
Prüffrequenz- und chargenabhängiges Ermüdungs- und Korrosionsermüdungsverhalten der Nickellötverbindung 1.4307/Ni620.
Werkstoffprüfung 2020, Web-Konferenz, 03.-04. Dez. (2020).

1) Otto, J. L. (V.); Penyaz, M.; Schmiedt-Kalenborn, A.; Ivannikov, A.; Kalin, B.; Walther, F.:
Effect of microstructural inhomogeneity of brazed AISI304L/NiCrSiB joints due to holding time on the corrosion fatigue behaviour.
DGM/DVM-AG Materialermüdung, Web-Konferenz, 05. Nov. (2020).

 

List of all presentations

Location & approach

The campus of TU Dort­mund University is located close to interstate junction Dort­mund West, where the Sauerlandlinie A45 (Frankfurt-Dort­mund) crosses the Ruhrschnellweg B1/A40. The best interstate exit to take from A45 is "Dort­mund-Eichlinghofen (6)" (closer to Campus Süd), and from B1/A40 "Dort­mund-Barop (44)" (closer to Campus Nord). Signs for the uni­ver­si­ty are located at both exits. Follow the signs towards Campus-Süd.

The Department of Materials Test Engineering (WPT) is located in the "Maschinenbau III" building, which can be reached via entrance 41, where parking spaces are available. The secretariat is located on the third floor in E 03 - room 3.027.

For the approach to the TU Dort­mund University you will find the navigation on Google Maps.

Address for navigation devices:

Baroper Straße 303

D-44227 Dortmund

Germany

TU Dort­mund University has its own train station ("Dort­mund Uni­ver­si­tät"). From there, suburban trains (S-Bahn) leave for Dort­mund main station ("Dort­mund Hauptbahnhof") and Düsseldorf main station via the "Düsseldorf Airport Train Station" (take S-Bahn number 1). The uni­ver­si­ty is easily reached from Bochum, Essen, Mülheim an der Ruhr and Duisburg. From there, Campus Süd, where the Department of Materials Test Engineering (WPT) is located, can be reached in five minutes via the H-Bahn in the direction of "Eichlinghofen" or "Campus Süd".

After leaving the H-Bahn station "Campus Süd" cross the small street and go straight forward. Take the stairs (elevator on the left side).
Turn right directly under the canopy, go approximately 200 m, the Building "Maschinenbau III" is at the end of the path.

The office is located on the third floor in E03 - room 3.027.

Dortmund's public transport company DSW21 offers an interactive route network map with timetable information.

The AirportExpress is a fast and convenient means of transport from Dort­mund Airport (DTM) to Dort­mund Central Station, taking you there in little more than 20 minutes. From Dort­mund Central Station, you can continue to the uni­ver­si­ty campus by interurban railway (S-Bahn). A larger range of in­ter­na­tio­nal flight connections is offered at Düsseldorf Airport (DUS), which is about 60 kilometres away and can be directly reached by S-Bahn from the uni­ver­si­ty station.

The H-Bahn is one of the hallmarks of TU Dort­mund University. There are two stations on Campus Nord. One ("Dort­mund Uni­ver­si­tät S") is directly located at the suburban train stop, which connects the uni­ver­si­ty directly with the city of Dort­mund and the rest of the Ruhr Area. Also from this station, there are connections to the "Technologiepark" and (via Campus Süd) Eichlinghofen. The other station is located at the dining hall at Campus Nord and offers a direct connection to Campus Süd every five minutes.

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