Yamaguchi, M.; Horiuchi, T.; Ikeda, K.-I.; Miura, S.; Stein, F.: Evaluation of Hardness before and after Compression Test of Nb2Co7 Single-phase Alloy by Nanoindentation Test. JIM (Japanese Institute of Metals) Meeting, ePoster, online (2021)
Distl, B.; Palm, M.; Stein, F.; Rackel, M. W.; Hauschildt, K.; Pyczak, F.: Phase equilibria investigations in the ternary Ti–Al–Nb system at elevated temperatures. Intermetallics 2019, Bad Staffelstein, Germany (2019)
Kahrobaee, Z.; Stein, F.; Palm, M.: Experimental evaluation of the isothermal section of the Ti–Al–Zr ternary system at 1273 K. Intermetallics 2019, Bad Staffelstein, Germany (2019)
Merali, M.; Stein, F.: Phase Relations in the Co-rich Part of the Co–Ti System including the Coexisting C36 and C15 Laves Phases. International Workshop on Laves Phases, Düsseldorf, Germany (2019)
Yamada, K.; Horiuchi, T.; Stein, F.; Miura, S.: Effect of Metastable L12-Co3Nb on Precipitation of Intermetallic Phases from Nb-Supersaturated Co Solid Solution in Co-rich Co-Nb Binary Alloys. 6th Int. Indentation Workshop, IIW6, Sapporo, Japan (2018)
Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: Composition dependence of mechanical properties of cubic and hexagonal NbCo2 Laves phases. EMMC 16, European Mechanics of Material Conference, Nantes, France (2018)
Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: Micropillar Compression of Hexagonal and Cubic NbCo2 Laves Phases. Nanomechanical Testing in Materials Research and Development VI, Dubrovnik, Croatia (2017)
Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: Deformation of Micropillars of Cubic and Hexagonal NbCo2 Laves Phases under Uniaxial Compression at Room Temperature. Intermetallics 2017, Educational Center Kloster Banz, Bad Staffelstein, Germany (2017)
Abe , K.; Horiuchi, T.; Stein, F.; Taniguchi, S.: Interrelation between Crystal Structure of Co Solid Solution Matrix and Precipitation of Intermetallic Phases in Co-rich Co–Nb Alloys. Calphad XLV, Awaji Island, Hyogo, Japan (2016)
Li, X.; Bottler, F.; Spatschek, R. P.; Scherf, A.; Heilmaier, M.; Stein, F.: Novel Lamellar in situ Composite Materials in the Al-Rich Part of the Fe-Al System. Int. Conf. The Materials Chain: From Discovery to Production, University Bochum, Bochum, Germany (2016)
Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: A New Method to Study the Composition Dependence of Mechanical Properties of Intermetallic Phases. Int. Conf. The Materials Chain: From Discovery to Production, University Bochum, Bochum, Germany (2016)
Horiuchi, T.; Stein, F.: Precipitation Behavior of Co7Nb2 from Supersaturated Co Solid Solution in Co–Nb Binary System. Intermetallics 2015, Educational Center Kloster Banz, Bad Staffelstein, Germany (2015)
Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: A New Method to Study the Composition Dependence of Mechanical Properties of Laves Phases. Intermetallics 2015, Educational Center Kloster Banz, Bad Staffelstein, Germany (2015)
Stein, F.; Vogel, S. C.; Eumann, M.; Palm, M.: In-situ Neutron Diffraction Experiments on the Effect of Mo on the Structure of the High-Temperature ε Phase of the Fe–Al System. 5th Discussion Meeting on the Development of Innovative Iron Aluminium Alloys (FEAL 2009), Prague, Czech Republic (2009)
Magnetic properties of magnetocaloric materials is of utmost importance for their functional applications. In this project, we study the magnetic properties of different materials with the final goal to discover new magnetocaloric materials more suited for practical applications.
Laser Powder Bed Fusion (LPBF) is the most commonly used Additive Manufacturing processes. One of its biggest advantages it offers is to exploit its inherent specific process characteristics, namely the decoupling the solidification rate from the parts´volume, for novel materials with superior physical and mechanical properties. One prominet…
The aim of the Additive micromanufacturing (AMMicro) project is to fabricate advanced multimaterial/multiphase MEMS devices with superior impact-resistance and self-damage sensing mechanisms.
We have studied a nanocrystalline AlCrCuFeNiZn high-entropy alloy synthesized by ball milling followed by hot compaction at 600°C for 15 min at 650 MPa. X-ray diffraction reveals that the mechanically alloyed powder consists of a solid-solution body-centered cubic (bcc) matrix containing 12 vol.% face-centered cubic (fcc) phase. After hot compaction, it consists of 60 vol.% bcc and 40 vol.% fcc. Composition analysis by atom probe tomography shows that the material is not a homogeneous fcc–bcc solid solution
This project is a joint project of the De Magnete group and the Atom Probe Tomography group, and was initiated by MPIE’s participation in the CRC TR 270 HOMMAGE. We also benefit from additional collaborations with the “Machine-learning based data extraction from APT” project and the Defect Chemistry and Spectroscopy group.
Statistical significance in materials science is a challenge that has been trying to overcome by miniaturization as in micropillar compression. However, this process is still limited to 4-5 tests per parameter variance, i.e. Size, orientation, grain size, composition, etc. as the process of fabricating pillars and testing has to be done one by one.…
In this project we pursue recent developments in the field of austenitic steels with up to 18% reduced mass density. The alloys are based on the Fe-Mn-Al-C system.
Local lattice distortion is one of the core effects in complex concentrated alloys (CCAs). It has been expected that the strength CCAs can be improved by inducing larger local lattice distortions. In collaboration with experimentalists, we demonstrated that VCoNi has larger local lattice distortions and indeed has much better strength than the…