Hot Isostatic Consolidation of P/M Superalloys.

Abstract

The kinetics of powder consolidation, or densification, and the powder morphological changes occurring during hot isostatic pressing (HIP) are studied as a function of particle size distribution and hold time at HIP temperature for the nickel base superalloy RENE-95. In order to understand the extent of individual powder particle deformation during consolidation and its effect on subsequent prior particle boundaries (PPB), particle size distribution was studied as a variable. Particle size distributions studied include monosized (75-90 micrometers), bimodal (75-90 micrometers and 33-35 micrometers) and commerical (104 micrometerss) size distribution. The experimental results of HIP densification kinetics are compared with a newly developed analytical deformation mechanism model for HIP consolidation which takes into account the effect of a distribution of particle sizes on the kinetics of densification. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1984
Accession Number
ADA158419

Entities

People

  • J. K. Tien
  • R. D. Kissinger
  • S. V. Nair

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Boundaries
  • Chemistry
  • Creep
  • Flow
  • Grain Growth
  • Isostatic Pressing
  • Materials
  • Materials Processing
  • Mechanical Properties
  • New York
  • Particle Size
  • Particles
  • Plastic Deformation
  • Plastic Flow
  • Powders
  • Stresses

Readers

  • Aerosol Science/Aerosol Physics
  • Exercise and Sports Science.
  • Reinforced Composite Materials