A Fundamental Study of P/M Processed Elevated Temperature Aluminum Alloys.

Abstract

Powder processed Al-Fe-Ni alloys containing (FeNi)Al9 dispersoids in the range 0.2-0.3 volume fraction are being examined with respect to processing mode, microstructure, microstructural stability and elevated temperature tensile and creep response. The overall objective is to establish a comprehensive and quantitative fundamental understanding of processing-microstructure relations in this new class of alloys in order to provide design guidelines with respect to service stresses and temperatures. To date, microstructural characterization, dispersoid stability, hot tensile and creep resistance have been characterized. These data and observations confirm the benefits of rapid solidification, promising levels of structural stability, and potential for long-time service at temperatures up to approx. 250 deg C (482 deg F). Using the L-S-W theory, it is possible to predict coarsening kinetics over a wide range of temperatures.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1984
Accession Number
ADA141780

Entities

People

  • Alan Lawłey
  • M. J. Koczak

Organizations

  • Drexel University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Alloys
  • Aluminum Alloys
  • Chemistry
  • Dispersion Hardening
  • Elements
  • Engineering
  • Materials
  • Materials Engineering
  • Mechanical Properties
  • Metallurgy
  • Metals
  • Particle Size
  • Powder Metallurgy
  • Powder Metals
  • Transition Metals
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.