Digital Image Correlation of Ni-Base Superalloy Rene 88DT Using In-Situ SEM Tension Experiments (Preprint)

Abstract

Digital image correlation was used to obtain the strain behavior of a polycrystalline nickel-based superalloy, Rene 88DT, from an in situ scanning electron microscope tensile experiment at room temperature. A subsequent correlation with crystal orientations shows that the average maximum principal strain tends to increase with increasing Schmid factor. The range of the extreme values for the maximum principal strain also increases closer to the grain boundary, signifying that grain boundaries and triple junctions initiate plasticity within polycrystalline Rene 88DT.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2008
Accession Number
ADA502792

Entities

People

  • B. B. Bartha
  • M. A. Tschopp
  • Steven B. Fairchild
  • T. Murray
  • W. J. Porter

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Boundaries
  • Crystals
  • Digital Images
  • Electron Microscopes
  • Electrons
  • Grain Boundaries
  • Images
  • Materials
  • Microscopes
  • Nanoparticles
  • Orientation (Direction)
  • Plastic Properties
  • Polycrystals
  • Scanning Electron Microscopes

Fields of Study

  • Materials science

Readers

  • Mathematics or Statistics
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Microelectronics