Nitrierverhalten einer Fe-Co-Mo-V Legierung

Translated title of the contribution: Nitriding behaviour of a Fe-Co-Mo-V alloy

Matthias Hofinger

Research output: ThesisDiploma Thesis

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Abstract

In this study, different alloys with the composition Fe-Co-Mo-V were analysed. These alloys often form precipitations of the intermetallic (Fe, Co)7Mo6 µ-phase. The aim of this work was to form micrometer-sized vanadium nitrides in the surface layer using different nitriding techniques. Therefore, different amounts of V were added to the alloy and nitriding treatments were performed. The influence on phase stability, dissolution of primary µ-phase and surface hardness was investigated. The methods used included thermodynamic calculations applying MatCalc and Thermo-Calc, dilatometer heat treatments, glow discharge optical emission spectroscopy (GDOES), X-ray diffraction (XRD) as well as electron backscatter diffraction (EBSD).
Translated title of the contributionNitriding behaviour of a Fe-Co-Mo-V alloy
Original languageGerman
QualificationDipl.-Ing.
Awarding Institution
  • Montanuniversität
Supervisors/Advisors
  • Schemmel, Ingrid, Supervisor (external), External person
  • Clemens, Helmut, Supervisor (internal)
  • Sackl, Stephanie Christin, Co-Supervisor (internal)
  • Turk, Christoph, Co-Supervisor (internal)
Award date21 Oct 2016
Publication statusPublished - 2016

Bibliographical note

embargoed until 11-10-2021

Keywords

  • ternary alloy FeCoMo
  • µ-phase
  • precipitation hardening
  • nitriding

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