dr.ir. K. Goulas (Constantinos)

Dr. Goulas, is an Assistant Professor at the University of Twente's Faculty of Engineering Technology. He is appointed as part of the "Sector Plan Techniek" with focus area "Multi-Material Additive Manufacturing". Dr. Goulas is a Metallurgical Engineer & Materials Scientist, currently leading research in the field of 3D printing processes for large scale applications and novel materials for 3D printing. He also contributes with materials science and characterisation experience in 3D-Bioprinting research projects.

Dr. Goulas holds a PhD in Materials Science and Engineering from Delft University of Technology and a Diploma (MSc) in Mining & Metallurgical Engineering from National Technical University of Athens. He has also studied General Management at the Rotterdam School of Management, Erasmus University Rotterdam. During his Postdoc at TU Delft he contributed to the development of multimaterial WAAM. Dr. Goulas has extensive experience in Research & Development, technology start-ups and engineering consultancy. He is currently representing RAMLAB BV in the Grade2XL EU research programme, where he is leading 2 work packages.

Dr. Goulas has also participated in international academic exchanges, including atomic scale studies of bainite at the Max Planck Institute of Iron Research in Düsseldorf and fatigue behavior of bainitic spring steels at the Colorado School of Mines in Golden, CO. He teaches several courses, including "Materials Science 1," and "Materials and Manufacturing Processes" and as a guest lecturer for "3D Printing: Processes and Use," and Manufacturing systems". Additionally, Dr. Goulas serves as an Advisor for Fraunhofer innovation platform, where he advises on 3D metal printing and materials, and as a Board Member for Authenticfoundation, where he helps develop an international network of Greek nationals in Academia.

Chemistry

# Microstructure

Engineering & Materials Science

# Austenite
# Bainite
# Carbon Steel
# Heating Rate
# Microstructure
# Steel

Physics & Astronomy

# Austenite

Faculty of Engineering Technology (ET), Advanced Manufacturing, Sustainable Products & Energy Systems (AMSPES)

El Akkawi, M. , Trikalitis, V. D., Gibson, I. , Goulas, C. , & Rouwkema, J. (2022). 3D printed Magnetically Deformable Hydrogels in a Granular Medium for Tissue Engineering applications. Poster session presented at 31st NBTE Annual Meeting 2022, Lunteren, Netherlands.

Palmeira Belotti, L., van Dommelen, J. A. W., Geers, M. G. D. , Goulas, C. , Ya, W., & Hoefnagels, J. P. M. (2022). Microstructural characterisation of thick-walled wire arc additively manufactured stainless steel. Journal of materials processing technology, 299, Article 117373. Advance online publication. https://doi.org/10.1016/j.jmatprotec.2021.117373

Castro Cerda, F. M. , Goulas, C., & Kestens, L. A. I. (2021). Balanced Constrained Carbon Equilibrium Accompanied by Carbide Precipitation. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 52(6), 2155-2157. Advance online publication. https://doi.org/10.1007/s11661-021-06240-6

Snijder, A. H., van der Linden, L. P. L. , Goulas, C., Louter, C., & Nijsse, R. (2020). The glass swing: a vector active structure made of glass struts and 3D-printed steel nodes. Glass Structures and Engineering, 5(1), 99-116. Advance online publication. https://doi.org/10.1007/s40940-019-00110-9

Jiménez-Peña, C. , Goulas, C., Preußner, J., & Debruyne, D. (2020). Failure mechanisms of mechanically and thermally produced holes in high-strength low-alloy steel plates subjected to fatigue loading. Metals, 10(3), Article 318. https://doi.org/10.3390/met10030318

Castro Cerda, F. M., Vercruysse, F. , Goulas, C., Schulz, B., & Petrov, R. H. (2019). ‘Flash’ Annealing in a Cold-Rolled Low Carbon Steel Alloyed With Cr, Mn, Mo, and Nb: Part I - Continuous Phase Transformations. Steel research international, 90(1), Article 1800098. Advance online publication. https://doi.org/10.1002/srin.201800098

Jiménez-Peña, C. , Goulas, C., Rossi, B., & Debruyne, D. (2019). Influence of hole-making procedures on fatigue behaviour of high strength steel plates. Journal of Constructional Steel Research, 158, 1-14. Advance online publication. https://doi.org/10.1016/j.jcsr.2019.03.005

Goulas, C., Kumar, A., Mecozzi, M. G., Castro-Cerda, F. M., Herbig, M., Petrov, R. H., & Sietsma, J. (2019). Atomic-scale investigations of isothermally formed bainite microstructures in 51CrV4 spring steel. Materials characterization, 152, 67-75. Advance online publication. https://doi.org/10.1016/j.matchar.2019.03.038

Kumar, A., Makineni, S. K. , Dutta, A. , Goulas, C., Steenbergen, M., Petrov, R. H., & Sietsma, J. (2019). Design of high-strength and damage-resistant carbide-free fine bainitic steels for railway crossing applications. Materials Science & Engineering A, 759, 210-223. Advance online publication. https://doi.org/10.1016/j.msea.2019.05.043

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