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Autor

  • Nolze, Gert (142)
  • Winkelmann, Aimo (22)
  • Link, T. (10)
  • Epishin, A. (9)
  • Saliwan Neumann, Romeo (8)
  • Winkelmann, A. (7)
  • Cios, G. (5)
  • Geist, V. (5)
  • Tokarski, T. (5)
  • Wendt, U. (5)
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Erscheinungsjahr

  • 2020 (8)
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  • 2015 (18)
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Dokumenttyp

  • Zeitschriftenartikel (92)
  • Vortrag (31)
  • Beitrag zu einem Tagungsband (15)
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  • Englisch (126)
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Referierte Publikation

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Schlagworte

  • EBSD (36)
  • Electron backscatter diffraction (35)
  • Simulation (13)
  • Orientation relationship (11)
  • SEM (9)
  • Crystal orientation (6)
  • Phase identification (6)
  • TEM (6)
  • XRD (6)
  • Kikuchi pattern (5)
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Organisationseinheit der BAM

  • 5 Werkstofftechnik (64)
  • 5.1 Materialographie, Fraktographie und Alterung technischer Werkstoffe (55)
  • 5.0 Abteilungsleitung und andere (7)
  • 9 Komponentensicherheit (7)
  • 5.2 Experimentelle und modellbasierte Werkstoffmechanik (4)
  • 9.0 Abteilungsleitung und andere (4)
  • 6 Materialchemie (3)
  • 6.1 Oberflächenanalytik und Grenzflächenchemie (3)
  • 8 Zerstörungsfreie Prüfung (2)
  • 8.5 Mikro-ZfP (2)
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142 Treffer

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Electron microscopy investigation of the structure of a compact extruded from nanopowder of nickel (2007)
Alymov, M. I. ; Epishin, Alexander ; Nolze, Gert ; Link, T. ; Bedov, S. ; Ankudinov, A. B.
Investigations of the meteoritic mineral (Fe,Ni)3P (2005)
Geist, V. ; Wagner, G. ; Nolze, Gert ; Moretzki, O.
A survey is presented on some characteristic features of meteoritic (Fe,Ni)3P which is an abundant and important minor phase of most iron meteorites. This mineral (named schreibersite/rhabdite) plays a decisive role during the formation of the so-called Widmanstätten pattern. Different transmission as well as scanning electron microscopic techniques have been applied to get more precise information about the real structure of the phosphide crystals, their chemical composition and the metal distribution across the phoshide/ kamacite interface. X-ray crystal structure determinations have been performed for selected (Fe,Ni)3P - cystals from various iron meteorites (Toluca, North Chile, Watson, Orange River, Morasko, Agpalilik, Odessa, Canyon Diablo). These experiments revealed a metal ordering, i.e. for the three non-equivalent metal positions a different substitution of Fe by Ni has been found. The perfection of the brittle (Fe,Ni)3P samples differs appreciably and seems to be dependent on the thermal history of each individual meteorite. Moreover, inside Ni-rich rhabdite crystals small monocrystalline inclusions of CrN (carlsbergite) have been detected.
Creep behaviour of the single-crystal nickel-base superalloy CMSX-4 at ultra-high homologous temperature (2015)
Epishin, A.I. ; Link, T. ; Nolze, Gert ; Fedelich, Bernard ; Schriever, Sina
Data about the creep behaviour of metals and their alloys at temperatures close to the melting point are very limited. The reason is that most engineering alloys are used at temperatures below 0.6-0.8 of their melting point, so, Investigation of creep at higher temperatures has no practical relevance. For some special applications however it is important, in our case hot isostatic pressing (HIP) of single-crystal turbine blades cast from nickel-base superalloys. In order to remove porosity the blades are HlPed at temperatures between y'-solvus and solidus where superalloy has no strengthening y'-phase and therefore is very soft. For example, the Company Howmet Castings HIPs the superalloy CMSX-4 at the temperature 1288aC, which corresponds to a homologous temperature of about 0.97=1561 K/1612 K (solidus temperature). Therefore knowledge about the creep behaviour of CMSX-4 at this temperature and understanding of the creep mechanisms are necessary to model the kinetics of pore closure during HIP as well as to plan the Parameters of the HIP process.
Schnelle Darstellung von Plolfiguren (stereografische und equal area-Projektion) (2012)
Nolze, Gert
Methodenkopplung mit EBSD (2012)
Nolze, Gert
Microstructure description by EBSD using additional sources of information (2012)
Nolze, Gert
Gefüge-Untersuchungen am Meteoriten von Erxleben (2012)
Nolze, Gert
EBSD-Untersuchungen am Kieler Meteorit (2012)
Nolze, Gert
EBSD-Aplikationen in der BAM (2002)
Nolze, Gert
Eisenmeteorite und Duplexstähle - Elektronenbeugung an kompakten Proben im REM (2005)
Nolze, Gert
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