The subproject is part of the process chain within the CRC 1232 and accordingly, cooperates closely with other subprojects. The gained information of the measurements is given as early as possible to the corresponding subprojects. Primarily, specimen preparation is discussed and planed with the subproject P04. Subsequently, different indentation geometries and materials are analysed as well as correlated with material properties with the subproject P02. Together with subproject U04 the mechanisms of hardness indentations are investigated. In further phases of the subproject the measurement technique is supposed to be established as an automatic and high-throughput process. For this purpose, a system will be designed, whereby in-situ measurements are possible during the indentation process. Accordingly, the movement of the indenter can be related to the indentation geometry to determine further suitable descriptors and derive corresponding material properties.
T. Czotscher, D. Otero Baguer, F. Vollertsen, I. Piotrowska-Kurczewski, P. Maaß: Connection between shock wave induced indentations and hardness by means of neural networks. AIP Conf Proc 2113 (2019) 1–6 . [Link zum PDF]
T. Czotscher, N. Wielki, K. Vetter, F. Vollertsen, D. Meyer: Rapid Material Characterisation of Deep-alloyed Steels by Shock Wave Based Indentation Technique and Deep Rolling. Nanomanufacturing and Metrology (2019). [Link zum PDF]
T. Czotscher: Material Characterisation by New Indentation Technique Based on Laser-Induced Shockwaves, Lasers in Manufacturing and Materials Processing (2018) 1-19 (online). [Link zum PDF]
T. Czotscher: Analysis of TEA-CO2-laser induced plasma to establish a new measurement technique, Journal of Laser Applications 30, 3 (2018) 032604-1-5. [Link zum PDF]
C. Mittelstädt, N. Blanke, T. Czotscher, H. Freiße, C. Halisch, V. Schultz, A. Simic, A. Stephen, D. Tyralla, K. Vetter, R.B. Bergmann: Aktuelle Forschungsthemen zum Laserstrahleinsatz, Schweißen und Schneiden 70, 9 (2018) 650-657. [Link zum Beitrag]
T. Czotscher: Umformen, Fügen, Schneiden und Messen mit nur einem Laser - die abtragsfreie Laserschockbearbeitung, Laser Magazin 4 (2017) 6-8. [Link zum PDF]
T. Czotscher, S. Veenaas, F. Vollertsen: Possibilites to characterise laser induced shockwaves, Journal for Technology of Plasticity 42, 1 (2017) 1-7.
T. Czotscher, T. Wünderlich: Energy of Laser Induced Shockwaves, Proc. of the 5th Intern. Conf. on New Forming Technology (ICNFT 2018 ) MATEC Web of Conferences 190, 02006 (2018) [Link zum PDF]
T. Czotscher, F. Vollertsen: Plasma Induced On Indenter Balls, Proc. of the 8th International Conference on High Speed Forming, Columbus OH/USA (ICHSF 2018). [Link zum PDF]
T. Czotscher: Influence of focal position on laser-induced plasma and hardness indentations, Proc. of the 36th Intern. Congress on Applications of Laser & Electro-Optics (ICALEO 2017) Atlanta GA USA (2017) paper no. M903. [Link zur Konferenz]
T. Czotscher, F. Vollertsen: Process stability of laser induced plasma for hardness measurements Lasers in Manufacturing (LIM17) eds.: L. Overmeyer, U. Reisgen, A. Ostendorf, M. Schmidt (2017). [Link zum PDF]