Dispersion Strengthening of Fe-Co Alloys for High Temperature Applications

Abstract

The overall objective of this effort was to increase yield strength and creep resistance of Fe-Co based alloys for applications at elevated temperatures. The project focused on two main areas: (i) inducing grain growth by annealing of as-rolled Hiperco 50 HS alloys from Carpenter Technology Corporation in order to improve creep resistance; (ii) optimizing a novel electrochemical deposition process to produce oxide dispersion strengthened materials. Results have shown that large grain size FeCo alloys can display both the yield strength and creep behavior desired for high temperature rotating machine applications without significant degradation of the magnetic properties.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2011
Accession Number
ADA546119

Entities

People

  • Chia-ling Chien
  • Robert Cammarata

Organizations

  • Johns Hopkins University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Annealing
  • Electrodeposition
  • Grain Growth
  • Grain Size
  • High Temperature
  • Magnetic Materials
  • Magnetic Properties
  • Materials
  • Materials Processing
  • Mechanical Properties
  • Stress Strain Relations
  • Stresses
  • Tensile Strength
  • Tensile Stress
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Superconducting Magnet Technology
  • Surface Engineering/Surface Coating Technology.