MGO-MGFE2O4 MICROSTRUCTURES.

Abstract

Magnesioferrite-periclase microstructures can be correlated to their thermal history. Grain boundary precipitation occurs at higher temperatures, whereas a Widmanstatten precipitation is favored at lower temperatures. Magnesiowustite which is cooled slowly through the solubility limit will first produce magnesioferrite at the grain boundary, followed by a Widmanstatten precipitate of magnesioferrite within the grains. Prolonged heat treatments at any temperature favor the spheroidization of the magnesioferrite within the periclase matrix. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1964
Accession Number
AD0608560

Entities

People

  • Howard Mccollister
  • Lawrence H. Van Vlack

Organizations

  • University of Michigan

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Chemical Precipitation
  • Chemical Reactions
  • Grain Boundaries
  • Heat Treatment
  • Microstructure
  • Precipitates
  • Precipitation
  • Solubility

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.