@proceedings{24102, editor = {{Eiber, Marion}}, issn = {{2509-8772}}, location = {{Berlin}}, title = {{{Einfluss von Eigenspannungen und Oberflächenrauheit additiv gefertigter Komponenten aus 316L auf die Beschichtbarkeit und Ermüdungsfestigkeit, }}}, year = {{2019}}, } @proceedings{24103, editor = {{Azarmi, Fardad }}, isbn = {{9781510888005}}, location = {{Yokohama}}, publisher = {{ASM International}}, title = {{{Adhesion of HVOF sprayed WC-Co coatings on additively processed 316L}}}, year = {{2019}}, } @phdthesis{26898, abstract = {{Im Rahmen dieser Arbeit wurden die mikrostrukturelle Entwicklung und die daraus resultierenden mechanischen Eigenschaften der im SLM® Verfahren (Selective Laser Melting) verarbeiteten Nickelbasis-Superlegierung Inconel 718 untersucht. Anschließend wurde der Einfluss des HIP-Prozesses (Heißisostatisches Pressen) auf die Porosität, die Mikrostruktur und die mechanischen Eigenschaften analysiert. Da der HIP-Prozess oberflächennahe Poren nicht schließen kann, wurden ausgewählte Proben durch das Arc-PVD-Verfahren (Physical Vapor Deposition) mit einer Ni-20Cr Beschichtung gekapselt. Da die typischen Zellstrukturen zusammen mit den γ´´- Ausscheidungen nach dem Lösungsglühen mit anschließender Ausscheidungshärtung auftreten, konnte die höchste Streckgrenze (Rp0,2) unter quasistatischer Belastung bei Raumtemperatur (RT) sowie bei 650 °C ermittelt werden. Unter zyklischer Belastung zeigen die beschichteten und heißisostatisch gepressten Proben die geringste Ermüdungsfestigkeit bei RT, sowohl vor als auch nach der Ausscheidungshärtung. Im lösungsgeglühten und anschließend ausscheidungsgehärteten Zustand weist das Material die höchste Lebensdauer, insbesondere bei einer niedrigen Dehnungsamplitude (Δε/2 = ±0,35 %), bei 650 °C auf.}}, author = {{Aydinöz, Mehmet Esat}}, isbn = {{ 978-3-8440-6475-9}}, keywords = {{Additive Fertigung, Laserschmelzverfahren, Nickelbasis-Superlegierung, Inconel 718, Mikrostruktur, mechanische Eigenschaften, Heißisostatisches Pressen, Beschichtung}}, pages = {{118}}, title = {{{Mikrostrukturelle und mechanische Eigenschaften der im Laserschmelzverfahren verarbeiteten Inconel 718 Nickelbasis-Superlegierung}}}, volume = {{10}}, year = {{2019}}, } @inproceedings{15024, abstract = {{Abstract. Within the scope of this study, an intrinsically lubricated deep drawing die fabricated via laser beam melting (LBM) is investigated. In contrast to the common objective of generating highly dense LBM components, this work endeavors to achieve intended micro-scale porosity. By utilizing permeable structures, in-process closed-loop control of lubrication during the forming operations is feasible. Based on a modified AM scan strategy, the required filigree, porous structures can be generated. Thus, in the present work three permeable specimens are additively generated from the maraging steel 1.2709. The cylindrical specimens are then analyzed via light microscopy (LM), microcomputer tomography (microCT), and with regard to the oil throughput rate. Subsequently, an intrinsically lubricated, AM deep drawing tool die is manufactured and experimentally tested. The findings reveal interesting results for deep drawn specimens with AM deep drawing dies.}}, author = {{Bader, Fabian and Hengsbach, Florian and Hoyer, Kay-Peter and Homberg, Werner and Schaper, Mirko}}, booktitle = {{PROCEEDINGS OF THE 22ND INTERNATIONAL ESAFORM CONFERENCE ON MATERIAL FORMING: ESAFORM 2019}}, title = {{{Intrinsically lubricated tool inserts for deep drawing applications generated by selective laser melting}}}, doi = {{10.1063/1.5112720}}, year = {{2019}}, } @phdthesis{42011, author = {{Zinn, Carolin}}, isbn = {{9783750443747}}, publisher = {{Books on Demand}}, title = {{{Laserinduzierte Nanostrukturierung intrinsisch gefertigter Hybridstrukturen – Oberflächenmorphologie, Verbindungs- und Korrosionseigenschaften}}}, year = {{2019}}, } @inbook{41523, author = {{Tasche, Lennart and Hoyer, Kay-Peter and Zhuravlev, Evgeny and Grundmeier, Guido and Schaper, Mirko and Keßler, Olaf}}, booktitle = {{The Minerals, Metals & Materials Series}}, isbn = {{9783030058609}}, issn = {{2367-1181}}, publisher = {{Springer International Publishing}}, title = {{{Surface Inoculation of Aluminium Powders for Additive Manufacturing Guided by Differential Fast Scanning Calorimetry}}}, doi = {{10.1007/978-3-030-05861-6_45}}, year = {{2019}}, } @article{23907, abstract = {{One of the strategies employed to lower weight and to decrease material consumption is reducing part thickness itself. Thus, functionally graded materials in which structural reinforcement is adjusted locally, are of great interest. With regard to conventional industrial processes, such as extrusion or flexible cold rolling, thickness variations can only be achieved either longitudinally or through the cross-section of the semi-finished products. Hence, a combined thickness variation (along both axes) is difficult to generate solely by extrusion or rolling. A simultaneous thickness variation in both directions, however, would enable further weight savings in structural components such as car body parts. In this study, a promising approach with extruded shapes, serving as a billet for a flexible hot rolling process, is elaborated upon. By employing the described process modification, shapes with simultaneous thickness variations in longitudinal as well as in transverse direction are feasible. Initial numerical analysis reveals the weight-saving potential of using these semi-finished products for structural parts in a car body. A demonstration of the production process for the semi-finished parts and the occurring challenges are discussed. To verify and adjust the new technology, a numerical model of the flexible hot rolling process has been created based on the finite element software QForm VX. This model is also employed for tool design optimization to produce semi-finished components with the required geometrical quality. Finally, the results of hot rolling experiments conducted using the adjusted roll design are presented.}}, author = {{Grydin, Olexandr and Sotirov, Nikolay and Samsonenko, Andrii and Biba, Nikolay and Andreiev, Anatolii and Stolbchenko, Mykhailo and Behr, Teresa and Frolov, Iaroslav and Schaper, Mirko}}, issn = {{1662-9752}}, journal = {{Materials Science Forum}}, pages = {{85--92}}, title = {{{Flexible Hot Rolling of Extruded Shapes of Aluminum Alloy EN AW-6082}}}, doi = {{10.4028/www.scientific.net/msf.949.85}}, year = {{2019}}, } @article{41524, author = {{Engelkemeier, Katja and Lindner, Jörg K N and Bürger, Julius and Vaupel, Kathrin and Hartmann, Marc and Tiemann, Michael and Hoyer, Kay-Peter and Schaper, Mirko}}, issn = {{0957-4484}}, journal = {{Nanotechnology}}, keywords = {{Electrical and Electronic Engineering, Mechanical Engineering, Mechanics of Materials, General Materials Science, General Chemistry, Bioengineering}}, number = {{9}}, publisher = {{IOP Publishing}}, title = {{{Nano-architectural complexity of zinc oxide nanowall hollow microspheres and their structural properties}}}, doi = {{10.1088/1361-6528/ab55bc}}, volume = {{31}}, year = {{2019}}, } @article{23900, author = {{Grydin, Olexandr and Andreiev, Anatolii and Holzweißig, Martin Joachim and Rüsing, Christian Johannes and Duschik, Kristina and Frolov, Yaroslav and Schaper, Mirko}}, issn = {{0921-5093}}, journal = {{Materials Science and Engineering: A}}, pages = {{176--195}}, title = {{{Short austenitization treatment with subsequent press hardening: Correlation between process parameters, microstructure and mechanical properties}}}, doi = {{10.1016/j.msea.2019.02.025}}, year = {{2019}}, } @article{23901, author = {{Grydin, Olexandr and Andreiev, Anatolii and Zogaj, Mergim and Frolov, Yaroslav and Schaper, Mirko}}, issn = {{1438-1656}}, journal = {{Advanced Engineering Materials}}, title = {{{Relationships between Microstructural and Mechanical Performance on Example of an Air‐Hardening Steel}}}, doi = {{10.1002/adem.201900134}}, year = {{2019}}, } @inproceedings{24105, author = {{Urbanek, Stefan and Ponick, Bernd and Taube, Alexander and Hoyer, Kay-Peter and Schaper, Mirko and Lammers, Stefan and Lieneke, Tobias and Zimmer, Detmar}}, booktitle = {{2018 IEEE Transportation Electrification Conference and Expo (ITEC)}}, title = {{{Additive Manufacturing of a Soft Magnetic Rotor Active Part and Shaft for a Permanent Magnet Synchronous Machine}}}, doi = {{10.1109/itec.2018.8450250}}, year = {{2018}}, } @proceedings{24115, editor = {{Eiber, Marion and Richard, Hans Albert}}, location = {{Berlin}}, title = {{{Einfluss unterschiedlicher Pulvereigenschaften beim selektiven Laserstrahlschmelzen von TiAl6V4 auf die Werkstoffeigenschaften}}}, year = {{2018}}, } @proceedings{24116, editor = {{Eiber, Marion and Richard, Hans Albert}}, location = {{Berlin}}, title = {{{Metallische Legierungssysteme für die additive Fertigung belastungsangepasster Implantate}}}, year = {{2018}}, } @inproceedings{41526, author = {{Urbanek, Stefan and Ponick, Bernd and Taube, Alexander and Hoyer, Kay-Peter and Schaper, Mirko and Lammers, Stefan and Lieneke, Tobias and Zimmer, Detmar}}, booktitle = {{2018 IEEE Transportation Electrification Conference and Expo (ITEC)}}, publisher = {{IEEE}}, title = {{{Additive Manufacturing of a Soft Magnetic Rotor Active Part and Shaft for a Permanent Magnet Synchronous Machine}}}, doi = {{10.1109/itec.2018.8450250}}, year = {{2018}}, } @article{41528, author = {{Engelkemeier, Katja and Mücke, Christian and Hoyer, Kay-Peter and Schaper, Mirko}}, issn = {{2522-0128}}, journal = {{Advanced Composites and Hybrid Materials}}, keywords = {{Materials Chemistry, Polymers and Plastics, Materials Science (miscellaneous), Ceramics and Composites}}, number = {{1}}, pages = {{189--199}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Anodizing of electrolytically galvanized steel surfaces for improved interface properties in fiber metal laminates}}}, doi = {{10.1007/s42114-018-0071-0}}, volume = {{2}}, year = {{2018}}, } @article{41527, author = {{Engelkemeier, Katja and Hoyer, Kay-Peter and Schaper, Mirko}}, issn = {{0167-577X}}, journal = {{Materials Letters}}, keywords = {{Mechanical Engineering, Mechanics of Materials, Condensed Matter Physics, General Materials Science}}, pages = {{752--756}}, publisher = {{Elsevier BV}}, title = {{{Influence of sp3/sp2-carbon ratio of vertically standing carbon nanostructures produced by pulsed laser-treatment on PAN-based carbon fibers}}}, doi = {{10.1016/j.matlet.2018.11.041}}, volume = {{236}}, year = {{2018}}, } @article{24107, author = {{Engelkemeier, Katja and Mücke, Christian and Hoyer, Kay-Peter and Schaper, Mirko}}, issn = {{2522-0128}}, journal = {{Advanced Composites and Hybrid Materials}}, pages = {{189--199}}, title = {{{Anodizing of electrolytically galvanized steel surfaces for improved interface properties in fiber metal laminates}}}, doi = {{10.1007/s42114-018-0071-0}}, year = {{2018}}, } @article{24106, author = {{Engelkemeier, Katja and Hoyer, Kay-Peter and Schaper, Mirko}}, issn = {{0167-577X}}, journal = {{Materials Letters}}, pages = {{752--756}}, title = {{{Influence of sp3/sp2-carbon ratio of vertically standing carbon nanostructures produced by pulsed laser-treatment on PAN-based carbon fibers}}}, doi = {{10.1016/j.matlet.2018.11.041}}, year = {{2018}}, } @article{23902, author = {{Grydin, Olexandr and Andreiev, Anatolii and Sotirov, Nikolay and Stolbchenko, Mykhailo and Behr, Teresa M. and Ashkelianets, Anton and Frolov, Iaroslav and Schaper, Mirko}}, issn = {{1047-4838}}, journal = {{JOM}}, pages = {{407--418}}, title = {{{Water Quenching of Hot-Rolled Aluminum Strips: Process Integrated Heat Treatment of the Alloy EN AW-6082}}}, doi = {{10.1007/s11837-018-3144-1}}, year = {{2018}}, } @article{23903, author = {{Lossen, Benjamin and Andreiev, Anatolii and Stolbchenko, Mykhailo and Homberg, Werner and Schaper, Mirko}}, issn = {{0924-0136}}, journal = {{Journal of Materials Processing Technology}}, pages = {{242--250}}, title = {{{Friction-spinning—Grain structure modification and the impact on stress/strain behaviour}}}, doi = {{10.1016/j.jmatprotec.2018.06.015}}, year = {{2018}}, }