Program

International Workshop on Laves Phases

14.-15. Jan. 2019, Max-Planck-Institut für Eisenforschung, Düsseldorf, Germany

Monday

10:00   Registration

10:30   Opening, Welcome (Gerhard Dehm)

10:35   Introducing remarks (Frank Stein)

Session 1 (Talks 1-4) (Chair: Masao Takeyama)

10:45   Precipitation Behavior of C14 Laves Phase (Fe,Cr)2(Nb,Mo) in αFe-based Alloys with High Cr Content

Yoshisato Kimura, Chieri Yabu, Ko Kato, Yaw Wang Chai

(Tokyo Institute of Technology, Yokohama, Japan)

11:10   "Reactive" Microstructure of High Performance Ferritic (HiperFer) Steels, the Key to Fatigue-resistant High-temperature Materials

Bernd Kuhn, Jennifer Lopez Barrilao, Torsten Fischer

(Forschungszentrum Jülich GmbH, Jülich, Germany)    

11:35   Thermomechanically Induced Laves Phase Precipitation in High Chromium Ferritic Stainless Steels

Xiuru Fan, Jana Pöpperlová, Bernd Kuhn, Wolfgang Bleck

(Forschungszentrum Jülich GmbH, Jülich, Germany)

12:00   Thermokinetic Simulation of Laves Phases Precipitation in High Cr Steels

Aurélie Jacob, Erwin Povoden-Karadeniz

(Technische Universität Wien, Vienna, Austria)

12:25   Lunch break

Session 2 (Talks 5-8) (Chair: Bernd Kuhn)

13:30   Design of Heat Resistant Ferritic Steels Using Laves Phase Precipitation

Satoru Kobayashi, Zhetao Yuan, Masao Takeyama

(Tokyo Institute of Technology, Tokyo, Japan)

13:55   Effects of Hf and Cr Contents on the Formation of Fe2Hf Laves Phase through Interphase Precipitation in Fe-Cr-Hf Ternary Alloys

Zhetao Yuan, Satoru Kobayashi, Masao Takeyama

(Tokyo Institute of Technology, Tokyo, Japan)

14:20   Strengthening of Iron Aluminide Alloys by Laves Phases

Martin Palm

(Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany)

14:45   Laves Phase in Alloy Systems including Nb, Al and Si

Seiji Miura, Li Peng, Toshiaki Horiuchi, Ken-Ichi Ikeda, Satoshi Takizawa

(Hokkaido University, Sapporo, Japan)

15:10   Coffee break

Session 3 (Talks 9-11, Poster) (Chair: Seiji Miura)

15:40   Origin and Progress of the Austenitic Laves Steels - Design Approaches and Strengthening Mechanisms -

Masao Takeyama

(Tokyo Institute of Technology, Tokyo, Japan)

16:05   Deformation Mechanisms of the Laves Phases in the Mg-Al-Ca System

Christoffer Zehnder, Konrad Czerwinski, Stefanie Sandlöbes, James S. K.-L. Gibson, Sandra Korte-Kerzel

(RWTH Aachen University, Aachen, Germany)

16:30   Composition Dependence of Mechanical Properties of the Cubic and Hexagonal NbCo2 Laves Phases Studied by Micromechanical Testing

Wei Luo, Christoph Kirchlechner, Gerhard Dehm, Frank Stein

(Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany)

16:55   Poster session (until 17:30)

P1. Laves Phases in Industrial Zirconium Alloys

Caroline Toffolon-Masclet 1, Joel Ribis 1, Jean-Christophe Brachet 1, Paul Lafaye 2, Jean-Claude Crivello 3, Jean-Marc Joubert 3

(1 CEA, Université Paris-Saclay, Gif-sur-Yvette, France; 2 Ecole Polytechnique, Montréal, Canada; 3Université Paris-Est, CNRS, UPEC, Thiais, France)

P2. Structural Diversity of Laves Phases

Fabian Eustermann, Stefan Seidel, Christopher Benndorf, Frank Stegemann, Oliver Janka, Rainer Pöttgen

(Westfälische Wilhelms-Universität Münster, Münster, Germany)

P3. Experimental Investigation and Thermodynamic Re-assessment of the Fe-Zr System

Ivan Saenko 1,2, Boburjon O. Mukhamedov 3, Alena V. Ponomareva 3, Mario J. Kriegel 1, Alexander L. Udovsky 2,4, Olga Fabrichnaya 1, Igor A. Abrikosov 3,5

(1 Freiberg University of Mining and Technology, Freiberg, Germany;  2 Baikov Institute of Metallurgy and Material Science of the Russian Academy of Sciences, Moscow, Russia;  National University of Science and Technology ‘MISIS’, Moscow, Russia;  National Research Nuclear University MEPhI, Moscow, Russia;  5 Linköping University, Linköping, Sweden)

P4. Phase Relations in the Co-rich Part of the Co-Ti System including the Coexisting C36 and C15 Laves Phases

Maisam Merali 1,2, Frank Stein 1

(1 Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany; 2 University of Cambridge, Cambridge, UK)

Tuesday

Session 4 (MPIE Kolloquium) (Chair: Frank Stein)

9:00     Recent Advances in Heat-resistant Structural Material Development with Laves Phases at Oak Ridge National Laboratory

Yukinori Yamamoto

(Oak Ridge National Laboratory, Oak Ridge, TN, USA)

10:00   Coffee break

Session 5 (Talks 13-16) (Chair: Yuri Grin)

10:20   Polytypic Transformations and Twinning in Laves Phases

Sharvan Kumar

(Brown University, Providence, RI, USA)

10:45   Atomic Arrangements at Planar Defects in C14 NbFe2 Laves Phase

Christian H. Liebscher 1, Michaela Šlapáková 1,2, Sharvan Kumar 3, Frank Stein 1

(1 Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany; 2 Charles University, Prague, Czech Republic; 3 Brown University, Providence, RI, USA)

11:10   Atomistic Investigation of Stacking Faults in Non-stoichiometric Fe-Nb Alloys

Ali Zendegani 1, Michaela Šlapáková 1,2, Christian Liebscher 1, Sharvan Kumar 3, Thomas Hammerschmidt 4, Fritz Körmann 1, Tilmann Hickel 1, Jörg Neugebauer 1

(1 Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany; 2 Charles University, Prague, Czech Republic; 3 Brown University, Providence, USA; 4 ICAMS, Ruhr-Universität Bochum, Bochum, Germany)

11:35   Evaluation between the Phase Stability and Geometrical Factor of C14-type Laves Phases

Ryosuke Yamagata 1, Masao Takeyama 1, Kyosuke Yoshimi 2

(1 Tokyo Institute of Technology, Tokyo, Japan;  2 Tohoku University, Sendai, Miyagi, Japan)

12:00   Lunch break

Session 6 (Talks 17-19) (Chair: Sharvan Kumar)

12:45   Multi-Center Bonding in Laves Phases by Position-Space Chemical Bonding Analysis

Alim Ormeci, Yuri Grin

(Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany)

13:10   Observations on the Composition Dependence of the c/a Ratio of Hexagonal Transition-metal-based Laves Phases

Frank Stein

(Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany)

13:35   Enthalpy of Formation of Laves Phases in Nb-Ni-Al and Nb-Cu-Al Systems

Qing Gu, George Kim, Wei Chen, Philip Nash

(Illinois Institute of Technology, Chicago, IL, USA)

14:00   Coffee break

Session 7 (Talks 20-22) (Chair: Martin Palm)

14:25   Thermodynamic Modelling of Laves Phases in Chromium-based Systems below Room Temperature using ab initio Results

Jan Vřešťál, Jana Pavlů, Mojmír Šob

(Masaryk University, Brno, Czech Republic; Academy of Sciences of the Czech Republic, Brno, Czech Republic)

14:50   Modelling of Phase Equilibria in the Hf-V System below Room Temperature

Jana Pavlů 1, Jan Vřešťál 1, Urszula D. Wdowik 2, Mojmír Šob 1

(1 Masaryk University, Brno, Czech Republic; and Academy of Sciences of the Czech Republic, Brno, Czech Republic; 2 Pedagogical University, Cracow, Poland)

15:15   Phase Equilibria and Intermetallic Phases in Ti-Al-X (X = Cr, Mo) based Systems

Mario J. Kriegel 1, Benedikt Distl 1, Jens Freudenberger 1,2, Olga Fabrichnaya 1, Andreas Leineweber 1

(1 TU Bergakademie Freiberg, Freiberg, Germany; 2 IFW Dresden, Dresden, Germany)

15:40   Closing

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