Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Dennis Langenkämper"'
Autor:
Mike Schneider, Felicitas Werner, Dennis Langenkämper, Christian Reinhart, Guillaume Laplanche
Publikováno v:
Metals, Vol 9, Iss 1, p 84 (2019)
Among equiatomic alloys of the Cr-Mn-Fe-Co-Ni system, MnFeNi was shown to exhibit a strong anti-invar behavior but little is known regarding its mechanical properties. The objective of the present study is to investigate Hall–Petch strengthening by
Externí odkaz:
https://doaj.org/article/fdbba85826734b66b90c54f77872b50c
Autor:
David Piorunek, Dennis Langenkämper, Jan Frenzel, Gunther Eggeler, Alexander Paulsen, Hakan Dumlu
Ti75Ta25 high-temperature shape memory alloys exhibit a number of features which make it difficult to use them as spring actuators. These include the high melting point of Ta (close to 3000 °C), the affinity of Ti to oxygen which leads to the format
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1681cb740dc1bb7e21c479441807aa7b
https://hss-opus.ub.ruhr-uni-bochum.de/opus4/frontdoor/index/index/docId/9871
https://hss-opus.ub.ruhr-uni-bochum.de/opus4/frontdoor/index/index/docId/9871
Autor:
Philipp Krooß, A. Reul, C. Lauhoff, Wolfgang W. Schmahl, Christoph Somsen, Irina Kireeva, Dennis Langenkämper, Matthias J. Gutmann, Thomas Niendorf, Y.I. Chumlyakov
Publikováno v:
Scripta Materialia. 168:42-46
The effect of finely dispersed particles on the functional properties and morphology of thermally induced martensite in Co-Ni-Ga shape memory alloys has been already reported in literature, however, still important aspects are not fully understood. T
Publikováno v:
Shape Memory and Superelasticity. 5:63-72
In the present work, the influence of oxidation on the martensitic transformation in Ti–Ta high-temperature shape memory alloys is investigated. Thermogravimetric analysis in combination with microstructural investigations by scanning electron micr
Autor:
Peter M. Kadletz, Gunther Eggeler, Ramona Rynko, Wolfgang W. Schmahl, Jan Frenzel, Christoph Somsen, Alexander Paulsen, Lukas Grossmann, Dennis Langenkämper
Publikováno v:
Shape Memory and Superelasticity. 5:16-31
Ti–Ta alloys represent candidate materials for high-temperature shape-memory alloys (HTSMAs). They outperform several other types of HTSMAs in terms of cost, ductility, and cold workability. However, Ti–Ta alloys are characterized by a relatively
Autor:
Peter M. Kadletz, Yahya Motemani, Jutta Rogal, Christoph Somsen, Kunyen Liao, Jan Frenzel, Ralf Drautz, Alberto Ferrari, Wolfgang W. Schmahl, Dennis Langenkämper, Yury Lysogorskiy, Alfred Ludwig, Tanmoy Chakraborty, Alexander Paulsen
Publikováno v:
Shape Memory and Superelasticity. 5:6-15
The structural characterization of the various phases that occur in Ti–Ta-based high-temperature shape-memory alloys is complicated by the presence of many competing phases as a function of composition. In this study, we resolve apparent inconsiste
Autor:
C. Lauhoff, Philipp Krooß, Yuri Chumlyakov, Dennis Langenkämper, César Ernesto Sobrero, Christoph Somsen, Thomas Niendorf, Gunther Eggeler
Publikováno v:
Materials letters. 2021. Vol. 291. P. 129430 (1-3)
The present paper focuses on the analysis of functional fatigue properties in 〈001〉-oriented single crystalline Fe-Ni-Co-Al-Ta shape memory alloys. Superelastic cycling experiments up to 4.5% at different temperatures were conducted and revealed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6cd306390e9919b5d5f0c3efe16f1fb
https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000894693
https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000894693
Autor:
Oliver Martin Horst, Werner Theisen, Inmaculada Lopez-Galilea, Ingo Steinbach, Christoph Somsen, J. V. Goerler, Aleksander Kostka, Dennis Langenkämper, O. Shchyglo, Benjamin Ruttert, Muhammad Adil Ali, Gunther Eggeler
Publikováno v:
Metallurgical and Materials Transactions A. 49:4262-4273
Rejuvenation of the initially hot isostatic pressing (HIP) heat-treated single-crystal Ni-base superalloy (SX) ERBO/1 was examined experimentally and via phase field simulation to establish rejuvenation treatments as a cost-effective alternative for
Publikováno v:
ACS Combinatorial Science. 19:618-624
High-throughput methods were used to investigate a Ni-Co-Al thin film materials library, which is of interest for structural and functional applications (superalloys, shape memory alloys). X-ray diffraction (XRD) measurements were performed to identi
Autor:
Alberto Ferrari, Jutta Rogal, Dennis Langenkämper, David Piorunek, Ralf Drautz, Alexander Paulsen, Christoph Somsen, Jan Frenzel, Gunther Eggeler
Publikováno v:
Physical Review Materials. 3
The rapid degradation of the functional properties of many Ti-based alloys is due to the precipitation of the $\omega$ phase. In the conventional high-temperature shape memory alloy Ti-Ta the formation of this phase compromises completely the shape m