Quantification of Microstructurally Short Crack Growth in Superalloys

Abstract

Based on characterization of Ti-7Al using High Energy Diffraction Microscopy (HEDM)at the Cornell High Energy Synchrotron Source, new information was obtained on a) temperature- dependent anisotropic thermal expansion, b) evolution of micro-mechanical state at the grain scale under cyclic loading, c) sensitivity of results from far field-HEDM to analysis variables and d) evaluation of RVE size with respect to micromechanics and crystallographic texture.

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Document Details

Document Type
Technical Report
Publication Date
Jul 22, 2020
Accession Number
AD1107088

Entities

People

  • Anthony Rollett
  • Robert M. Suter

Organizations

  • Carnegie Mellon University

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Crystal Lattices
  • Crystal Structure
  • Crystallography
  • Crystals
  • Data Sets
  • Detectors
  • Diffraction
  • Engineering
  • Materials
  • Materials Science
  • Measurement
  • Mechanics
  • Scattering
  • Stress Strain Relations
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Metallurgy
  • Nanoscale Plasmonic Nanotechnology