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Logo: Research Group 1766
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Logo: Research Group 1766
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Articles

A. Reul, C. Lauhoff, P. Krooß, M. J. Gutmann, P. M. Kadletz, Y. I. Chumlyakov, T. Niendorf, W. W. Schmahl (2018): In Situ Neutron Diffraction Analyzing Stress-Induced Phase Transformation and Martensite Elasticity in [001]-Oriented Co49Ni21Ga30 Shape Memory Alloy Single Crystals, Shape Memory and Superelasticity, Advances in Science and Technology  | file |
DOI: DOI 10.1007/s40830-018-0156-1

G. Gerstein, V.A. L'vov, A. Żak, W. Dudziński, H.J. Maier (2018): Direct observation of nano-dimensional internal structure of ferromagnetic domains in the ferromagnetic shape memory alloy Co-Ni-Ga , Journal of Magnetism and Magnetic Materials
DOI: https://doi.org/10.1016/j.jmmm.2018.06.066

Alberto Cereser, Markus Strobl, Stephen Hall, Axel Steuwer, Ryoji Kiyanagi, Anton Tremsin, Erik Bergbäck Knudsen, Takenao Shinohara, Peter Willendrup, Alice Bastos da Silva Fanta, Srinivasan Iyengar, Peter Mahler Larsen, Takayasu Hanashima, Taketo Moyoshi, Peter M. Kadletz, Philip Krooß, Thomas Niendorf, Morten Sales, Wolfgang W. Schmahl, Søren Schmidt (2017): Time-of-Flight Three Dimensional Neutron Diffraction in Transmission Mode for Mapping Crystal Grain Structures, Scientific Reports 7, Article number: 9561, 388-399  | file |
DOI: 10.1038/s41598-017-09717-w

Hans Jürgen Maier, Elvira Karsten, Alexander Paulsen, Dennis Langenkämper , Peer Decker, Jan Frenzel, Christoph Somsen, Alfred Ludwig, Gunther Eggeler, Thomas Niendorf (2017): Microstructural evolution and functional fatigue of a Ti–25Ta high-temperature shape memory alloy, Journal of Materials Research, 2017
DOI: 10.1557/jmr.2017.319

H.J. Maier (2016): Recent Developments in Shape Memory Alloys, ACTUATOR 2016, 15th International Conference on New Actuators, Bremen, Germany, 13–15 June 2016, p. 303-308

P. Krooß, P.M. Kadletz, C. Somsen, M.J. Gutmann, Y.I. Chumlyakov, W.W. Schmahl, H.J. Maier, T. Niendorf (2016): Cyclic Degradation of Co49Ni21Ga30 High-Temperature Shape Memory Alloy: On the Roles of Dislocation Activity and Chemical Order, Shape Memory and Superelasticity, Volume 2, Issue 1, 37–49  | file |
DOI: 10.1007/s40830-015-0049-5

H.E. Karaca, E. Acar, G.S. Ded, S.M. Saghaian, B. Basaran, H. Tobe, M. Kok, H.J. Maier, R.D. Noebe, Y.I. Chumlyakov (2015): Microstructure and transformation related behaviors of a Ni45.3Ti29.7Hf20Cu5 high temperature shape memory alloy, Mater. Sci. Eng. A, Volume 627, 82-94
DOI: 10.1016/j.msea.2014.12.111

J. Frenzel, A. Wieczorek, I. Opahle, B. Maaß, R. Drautz, G. Eggeler (2015): On the effect of alloy composition on martensite start temperatures and latent heats in Ni-Ti-based shape memory alloys, Acta Materialia, Volume 90, 213-231
DOI: 10.1016/j.actamat.2015.02.029

M. Vollmer, P. Krooß, C. Segel, A. Weidner, A. Paulsen, J. Frenzel, H. Biermann, G. Eggeler, H.J. Maier, T. Niendorf (2015): Damage evolution in pseudoelastic polycrystalline Co-Ni-Ga high-temperature shape memory alloys, J. Alloys Comp., Volume 633, 288-295
DOI: doi:10.1016/j.jallcom.2015.01.282

P. Kadletz, P. Krooß, Y.I. Chumlyakov, M.J. Gutmann, W. Schmahl, H.J. Maier, T. Niendorf (2015): Martensite stabilization in shape memory alloys - experimental evidence for short-range ordering, Materials Letters, Volume 159, 16-19
DOI: 10.1016/j.matlet.2015.06.048

P. Krooß, T. Niendorf, P. Kadletz, C. Somsen, M.J. Gutmann, Y.I. Chumlyakov, W.W. Schmahl, G. Eggeler, H.J. Maier (2015): Functional fatigue and tension-compression asymmetry in [001]-oriented Co49Ni21Ga30 high-temperature shape memory alloy single crystals, Shap. Mem. Superelasticity
DOI: 10.1007/s40830-015-0003-6

P.J. Buenconsejo, A. Ludwig (2015): New Au-Cu-Al thin film shape memory alloys with tunable functional properties and high thermal stability, Acta Materialia, Volume 85, 378-386
DOI: 10.1016/j.actamat.2014.11.035

R. Rynko, A. Marquardt, A. Paulsen, J. Frenzel, C. Somsen, G. Eggeler (2015): Microstructural evolution in a Ti – Ta high-temperature shape memory alloy during creep , Int. J. Mat. Res., Volume 106, 331-341
DOI: 10.3139/146.111189

T. Chakraborty, J. Rogal, R. Drautz (2015): Martensitic transformation between competing phases in Ti-Ta alloys: a solid-state nudged elastic band study, J. Phys.: Condens. Matter, Volume 27, 115401
DOI: 10.1088/0953-8984/27/11/115401

T. Niendorf, P. Krooß, C. Somsen, R. Rynko, A. Paulsen, E. Batyrshina, J. Frenzel, G. Eggeler, H.J. Maier (2015): Cyclic degradation of titanium-tantalum high-temperature shape memory alloys - the role of dislocation activity and chemical decomposition, Functional Materials Letters

T. Niendorf, P. Krooß, E. Batyrsina, A. Paulsen, Y. Motemani, A. Ludwig, P. Buenconsejo, J. Frenzel, G. Eggeler, H.J. Maier (2015): Functional and structural fatigue of titanium tantalum high temperature shape memory alloys (HTSMAs), Mater. Sci. Eng. A, Volume 620, 359-366
DOI: 10.1016/j.msea.2014.10.038

T. Niendorf, P. Krooß, Y. Chumlyakov, H.J. Maier (2015): Martensite aging - avenue to new high temperature shape memory alloys, Acta Materialia, Volume 89, 298-304
DOI: 10.1016/j.actamat.2015.01.042

Y. Motemani, P. Kadletz, B. Maier, R. Rynko, C. Somsen, A. Paulsen, J. Frenzel, W.W. Schmahl, G. Eggeler, A. Ludwig (2015): Microstructure, shape memory effect and functional stability of Ti67Ta33 thin films, Advanced Engineering Materials
DOI: 10.1002/adem.201400576

E. Batyrshina, H.J. Maier (2014): Metalle, die sich erinnern: Mit Formgedächtnis immer in der richtigen Fassung, Unimagazin 01/02 2014

E. Batyrsina, H.J. Maier (2014): Verwandlungskünstler Metalle: Immer in der richtigen Form, Phi Magazin- Produktionstechnik, Hannover informiert, Newsletter Nr. 5

J. Zhang, R. Rynko, J. Frenzel, C. Somsen, G. Eggeler (2014): Ingot metallurgy and microstructural characterization of Ti–Ta alloys, Int. Journ. Mater. Res., Volume 105, 156-167
DOI: 10.3139/146.111010

P. Krooß, C. Somsen, T. Niendorf, M. Schaper, I. Karaman, Y. Chumlykov, G. Eggeler, H.J. Maier (2014): Cyclic degradation mechanisms in aged FeNiCoAlTa shape memory single crystals, Acta Materialia, Volume 79, 126-137
DOI: http://dx.doi.org/10.1016/j.actamat.2014.06.019

P.J. Buenconsejo, A. Ludwig (2014): Composition - structure - function diagrams of Ti−Ni−Au thin film shape memory alloys, ACS Comb Sci., Volume 16, 678-685
DOI: 10.1021/co5000745

T. Niendorf, P. Krooß, E. Batyrsina, A. Paulsen, J. Frenzel, G. Eggeler, H.J. Maier (2014): On the functional degradation of binary titanium-tantalum high-temperature shape memory alloys – A new concept for fatigue life extension, Funct. Mater. Letters, Volume 7
DOI: 10.1142/S1793604714500428

Y. Motemani, P. J. Buenconsejo, C. Craciunescu, A. Ludwig (2014): High-temperature shape memory effect in Ti-Ta thin films sputter deposited at room temperature, Advanced Materials Interfaces, Volume 1, 1400019-1400024
DOI: 10.1002/admi.201400019

Conferences

H. J. Maier (2018): High-temperature shape memory alloys: Recent developments, current limitations and new avenues

H.J. Maier (2016): Recent Developments in Shape Memory Alloys, 15th International Conference on New Actuators, Bremen, Germany, 13–15 June 2016

H.J. Maier, P. Krooß, T. Niendorf (2016): Functional Fatigue of High Temperature Shape Memory Alloys, ECF21 - 21st European Conference on Fracture, June 20 -24, 2016, Catania, Italy

A. Paulsen, P. Krooß, T. Chakraborty, P. Kadletz, J. Rogal, T. Niendorf, W. Schmahl, R. Drautz, J. Frenzel, G. Eggeler (2015): Discovery of new Ti-­Ta-­(Al) shape memory alloys with very high transformation temperatures

A. Paulsen, R. Rynko, C. Somsen, J. Frenzel, Eggeler (2015): Processing and functional stability of Ti-Ta high-temperature shape memory alloys, HTSMA 2015

C. Somsen, R. Rynko, A. Marquardt, A. Paulsen, J. Frenzel, G. Eggeler (2015): Influence of creep on the microstructure of a binary Ti-Ta high-temperature shape memory alloy, HTSMA 2015

H. Sommer, A. Paulsen, J. Frenzel, G. Eggeler, J.L. Pelegrina, A. Yawny (2015): Investigation of transformation and precipitation processes in Ti-Ta(-Al) high-temperature shape memory alloys using electrical resistivity measurements, HTSMA 2015

H.J. Maier, E. Karsten, T. Niendorf, P. Krooß, A. Paulsen, Y. Motemani, A. Ludwig, P. Buenconsejo, J. Frenzel, G. Eggeler (2015): Functional and structural fatigue of titanium-tantalum high-temperature shape memory alloys, HTSMA 2015

J. Frenzel, A. Wieczorek, B. Maaß, I. Opahle, R. Drautz, G. Eggeler (2015): On the strong dependence of transformation temperatures on alloy composition in Ni-Ti-based shape memory alloys, HTSMA 2015

M. Vollmer, P. Krooß, C. Segel, A. Weidner, T. Niendorf, A. Paulsen, J. Frenzel, G. Eggeler, M. Schaper, H.J. Maier (2015): Damage evolution in pseudoelastic polycrystalline Co-Ni-Ga high-temperature shape memory alloys, HTSMA 2015

P. Kadletz, W.W. Schmahl, A. Paulsen, J. Frenzel, R. Rynko, G. Eggeler, H.J. Maier (2015): Influence of phase-stabilities, kinetic processes and texture on the structural and functional stability of Ti-Ta(-X) high-temperature shape memory alloys, HTSMA 2015

P. Krooß, T. Niendorf, P. Kadletz, C. Somsen, Y. Chumlyakov, H.J. Maier (2015): Functional and structural fatigue in a CoNiGa high-temperature shape memory alloy, HTSMA 2015

T. Chakraborty, J. Rogal, R. Drautz (2015): A density functional theory study of the competing phases in Ti-Ta binary alloys, HTSMA 2015

T. Niendorf, P. Krooß, Y. Chumlyakov, H.J. Maier (2015): From pseudoelasticity to low-cost high-temperature shape memory - high-temperature shape memory alloys obtained by martensite stabilization, HTSMA 2015

Y. Motemani, S. Thienhaus, A. Ludwig (2015): Development of Ti-Ta high-temperature shape memory thin films, HTSMA 2015

F. Butera, A. Coda, Y. Motemani, A. Ludwig (2014): Emerging SMA applications and new material developments, Actuator 14

P. Krooß, E. Batyrsina, T. Niendorf, A. Paulsen, J. Frenzel, M. Schaper, H.J. Maier (2014): On the functional stability of TiTa shape memory alloys, ASM International
ISBN: 978-1-63266-684-0

P. Krooß, T. Niendorf, J. Dadda, Y. Chumlyakov, H.J. Maier (2013): On the functional fatigue behavior of high temperature shape memory alloys , published in ASM International

T. Niendorf, J. Dadda, J. Lackmann, J.A. Monroe, I. Karaman, E. Panchenko, H.E. Karaca, H.J. Maier (2013): Tension - compression asymmetry in Co49Ni21Ga30 high-temperature shape memory alloy single crystals, published in Materials Science Forum, Volumes 738 - 739
DOI: 10.4028/www.scientific.net/MSF.738-739.82

Dissertations

R. Rynko (2015): Mikrostrukturelle Untersuchungen von thermisch und thermomechanisch induzierten Strukturbildungsprozessen in Ti-Ta Hochtemperatur-Formgedächtnislegierungen, Dissertation, Bochum