M.Sc. Julian Rozo Vasquez
Phone: +49 231 755 8535
Fax: +49 231 755 8029
Room: 3.022
ORCID iD : https://orcid.org/0000-0002-5377-1795
Main activities
- Scanning electron microscopy (SEM)
- Energy dispersive X-ray spectroscopy (SEM-EDX)
- Electron backscatter diffraction (SEM-EBSD)
- Excercise Mikroskopie und Mikroanalytik (MM)
Overview of research projects in group steels
Curriculum Vitae
Publications and presentations
10) Rozo Vasquez, J.; Kanagarajah, H.; Arian, B.; Kersting, L.; Homberg, W.; Trächtler, A.; Walther, F.:
Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation and phase transformation of metastable austenitic steel AISI 304L by flow forming.
Practical Metallography 59 (11), (2022) 660-675. https://doi.org/10.1515/pm-2022-0064
9) Kersting, L.; Arian, B.; Rozo Vasquez, J.; Trächtler, A.; Homberg, W.; Walther, F.:
Innovative online measurement and modelling approach for property-controlled flow forming processes.
Key Engineering Materials 926 (2022) 862-874. https://doi.org/10.4028/p-yp2hj3 - Download
8) Hajavifard, R.; Afzal, M.J.; Rozo Vasquez, J.; Buhl, J.; Walther, F.:
Tailoring the surface integrity of disc springs for stabilization of residual stresses by incremental sheet forming.
M2D2022, Proceedings of the 9th International Conference on Mechanics and Materials in Design (2022) 259-266.
7) Rozo Vasquez, J.; Arian, B.; Riepold, M.; Homberg, W.; Trächtler, A.; Walther, F.:
Magnetic Barkhausen noise analysis for microstructural effects separation during flow forming of metastable austenite 304L.
Proceedings of the 11th International Workshop NDT in Progress, NDT in Progress 2021 (12), (2021) 1-9.Download
6) Arian, B.; Riepold, M.; Rozo Vasquez, J.; Homberg, W.; Trächtler, A.; Walther, F.:
Forming of metastable austenitic stainless steel tubes with axially graded martensite content by flow-forming.
ESAFORM 2021, Proceedings of the 24th International Conference on Material Forming, (2021) 1-9. https://doi.org/10.25518/esaform21.2759 - Download
5) Riepold, M.; Arian, B.; Rozo Vasquez, J.; Homberg, W.; Walther, F.; Trächtler, A.:
Model approaches for closed-loop property control for flow forming.
Advances in Industrial and Manufacturing Engineering 3, 100057 (2021) 1-9. https://doi.org/10.1016/j.aime.2021.100057 - Download
4) Baak, N.; Hajavifard, R.; Lücker, L.; Rozo Vasquez, J.; Strodick, S.; Teschke, M.; Walther, F.:
Micromagnetic approaches for microstructure analysis and capability assessment.
Materials Characterization 178, 111189 (2021) 1-14. https://doi.org/10.1016/j.matchar.2021.111189
3) Rozo Vasquez, J.; Arian, B.; Riepold, M.; Homberg, W.; Ansgar, T.; Walther, F.:
Microstructural investigation on phase transformation during flow forming of the metastable austenite AISI 304.
Sonderbände der Praktische Metallographie zur 54. Metallographie-Tagung - Fortschritte in der Metallographie, Hrsg.: A. Neidel, ISBN 978-3-88355-422-8 (2020) 75-81.
2) Teschke, M.; Rozo Vasquez, J.; Lücker, L.; Walther, F.:
Characterization of damage evolution on hot flat rolled mild steel sheets by means of micromagnetic parameters and fatigue strength determination.
Materials 13 (11), 2486 (2020) 1-19. https://doi.org/10.3390/ma13112486 - Download
1) Knyazeva, M.; Rozo Vasquez, J., Gondecki, L.; Weibring, M.; Pöhl, F.; Kipp, M.; Tenberge, P.; Theisen, W; Walther, F.; Biermann, D.:
Micro-magnetic and microstructural characterization of wear progress on case-hardened 16MnCr5 gear wheels.
Materials 11(11), 2290 (2018) 1-17. https://doi.org/10.3390/ma11112290 - Download
13) Rozo Vasquez, J.; Sarafraz, Y.; Strodick, S.; Baak, N.; Walther, F. (Sp.):
Monitoring of fatigue evolution by in-situ measurement methods and micromagnetic analysis.
TMS 2023 Annual Meeting & Exhibition, San Diego, CA, USA, 19.-23. Mar. (2023).
12) Rozo Vasquez, J. (Sp.); Arian, B.; Kersting, L.; Homberg, W.; Trächtler; A.; Walther, F.:
Soft sensor concept for micromagnetic depth-specific analysis of phase transformation during flow forming of AISI 304L steel.
ICBM 14, 14th International Conference on Barkhausen Noise and Micromagnetic Testing, Stockholm, Sweden, 27.-30. Sept. (2022).
11) Rozo Vasquez, J. (Sp.); Kanagarajah, H.; Arian, B.; Kersting, L.; Homberg, W.; Trächtler; A.; Walther, F.:
Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation and phase transformation of metastable austenitic steel AISI 304L by flow forming.
56. Metallographie-Tagung, Saarbrücken, 21.-23. Sept. (2022).
10) Hajavifard, R. (Sp.); Afzal, M.J.; Rozo Vasquez, J.; Buhl, J.; Walther, F.:
Tailoring the surface integrity of disc springs for stabilization of residual stresses by incremental sheet forming.
M2D2022 - 9th International Conference on Mechanics and Materials in Design, Funchal, Madeira, Portugal, 26.-30. June (2022).
9) Kersting, L. (Sp.); Arian, B.; Rozo Vasquez, J.; Trächtler, A.; Homberg, W.; Walther, F.:
Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes.
ESAFORM2022 - 25th International Conference on Material Forming, Braga, Portugal, 27.-29. Apr. (2022).
8) Rozo Vasquez, J. (Sp.); Arian, B.; Riepold, M.; Homberg, W.; Trächtler, A.; Walther, F.:
Magnetic Barkhausen noise analysis for microstructural effects separation during flow forming of metastable austenite 304L.
ENDT&CM2021, 2nd European Non-Destructive Testing & Condition Monitoring Days, Prague, Czech Republic, 04.-07. Oct. (2021).
7) Arian, B. (Sp.); Riepold, M.; Rozo Vasquez, J.; Homberg, W.; Trächtler, A.; Walther, F.:
Forming of metastable austenitic stainless steel tubes with axially graded martensite content by flow-forming.
ESAFORM 2021, 24th International Conference on Material Forming, Web Conference, 14.-16. Apr. (2021).
6) Rozo Vasquez, J.; Strodick, S.; Baak, N.; Walther, F. (Sp.):
(Mikro-) Magnetische Charakterisierung von produktionsprozessabhängigen Werkstoffzuständen - Anwendungen und Herausforderungen.
Kolloquium des Arbeitskreises „Messtechnik“ des DFG SPP 2183 „Eigenschaftsgeregelte Umformprozesse“, Impulsvortrag, 04. Nov. (2020).
5) Lücker, L. (Sp.); Teschke, M.; Rozo Vasquez, J.; Walther, F.:
Characterization of forming-induced damage of hot flat rolled micro-alloyed steel by micromagnetic testing correlated with fatigue behavior.
MSE 2020, Materials Science and Engineering, Web Conference, 22.-25. Sept. (2020).
4) Rozo Vasquez, J. (Sp.); Arian, B.; Markus, R.; Homberg, W.; Ansgar, T.; Walther, F.:
Microstructural investigation on phase transformation during flow forming of the metastable austenite AISI 304.
MET2020, 54. Metallographie-Tagung, Web-Konferenz, 16.-18. Sept. (2020).
3) Strodick, S.; Rozo Vasquez, J.; Walther, F. (Sp.):
(Mikro-) Magnetische Messverfahren zur Charakterisierung von Werkstoffzuständen und Regelung von Produktionsprozessen - Anwendungen und Herausforderungen in der Forschung.
Kolloquium des Arbeitskreises „Messtechnik“ des DFG SPP 2086 „Oberflächenkonditionierung in der Zerspanung“, Impulsvortrag, 05. Mai (2020).
2) Teschke, M. (Sp.); Samfaß, L.; Rozo Vasquez, J.; Baak, N.; Walther, F.:
Characterization of forming-induced damage of bent and hot flat rolled DP800 steel sheets by micromagnetic testing.
ICBM13, 13th International Conference on Barkhausen Noise and Micromagnetic Testing, Prague, Czech Republic, 23.-26. Sept. (2019).
1) Knyazeva, M. (Sp.); Rozo Vasquez, J., Gondecki, L.; Weibring, M.; Pöhl, F.; Kipp, M.; Tenberge, P.; Theisen, W; Walther, F.; Biermann, D.:
Micro-magnetic and microstructural characterization of wear progress on case-hardened 16MnCr5 gear wheels.
2nd International Conference Materials Chain MCIC2018, Bochum, Germany, 12.-14. Nov. (2018).