Deformation and Fracture of P/M (Powder/Metallurgy) Titanium Alloys.

Abstract

Progress is reviewed for a research program whose purpose is to provide a broad-based understanding of the application and consequences of certain advanced processing techniques to high performance alloys in general and to Ti alloys in particular. The research ranges from experimental studies of hot isostatic pressing (HIP) to experimental/analytical modeling of the deformation and fracture of materials with pre-existing porosity. Aspects of the search are also a fundamental study of fracture utilizing engineering materials containing processing-induced defects. Progress for the period October 1, 1983 to September 30, 1984 is reviewed for the following portions of this research program: (1) the influence of porosity on the deformation and fracture of alloys over a wide range of strain rates; (2) the effects of void/pore distributions on ductile fracture as modeled by arrays of holes; (3) hot isostatic pressing of metallic powders; and (4) grain size/stress state effects on the hydrogen embrittlement of titanium. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 05, 1984
Accession Number
ADA148672

Entities

People

  • Donald A. Koss

Organizations

  • Michigan Technological University

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Engineering
  • Factorial Design
  • Grain Size
  • Hydrogen Embrittlement
  • Isostatic Pressing
  • Materials
  • Materials Engineering
  • Mathematical Models
  • Mechanical Properties
  • Mechanical Working
  • Metallurgy
  • Plastic Flow
  • Porous Materials
  • Powder Metallurgy
  • Powders
  • Strain Hardening
  • Strain Rate

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Powder metallurgy of Titanium alloys.
  • Technical Research and Report Writing.