Metallurgical and Materials Transactions A

, Volume 45, Issue 10, pp 4561–4571 | Cite as

High-Temperature Oxidation Behavior of Two Nickel-Based Superalloys Produced by Metal Injection Molding for Aero Engine Applications

  • Benedikt Albert
  • Rainer Völkl
  • Uwe Glatzel


For different high-temperature applications like aero engines or turbochargers, metal injection molding (MIM) of superalloys is an interesting processing alternative. For operation at high temperatures, oxidation behavior of superalloys produced by MIM needs to match the standard of cast or forged material. The oxidation behavior of nickel-based superalloys Inconel 713 and MAR-M247 in the temperature interval from 1073 K to 1373 K (800 °C to 1100 °C) is investigated and compared to cast material. Weight gain is measured discontinuously at different oxidation temperatures and times. Analysis of oxidized samples is done via SEM and EDX-measurements. MIM samples exhibit homogeneous oxide layers with a thickness up to 4 µm. After processing by MIM, Inconel 713 exhibits lower weight gain and thinner oxide layers than MAR-M247.


Oxide Layer Oxide Scale Oxidation Behavior Depletion Zone Cast Sample 
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The authors thank Bundesministerium für Wirtschaft und Technologie (BMWi) for funding as well as MTU Aero Engines and Schunk Sintermetalltechnik for research cooperation via the LuFo IV/2 research program.


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Copyright information

© The Minerals, Metals & Materials Society and ASM International 2014

Authors and Affiliations

  1. 1.Metals and AlloysUniversity of BayreuthBayreuthGermany
  2. 2.MTU Aero EnginesMunichGermany

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