Thermal Relaxation of Shot Peen Induced Residual Stresses in a Nickel-Base Superalloy

Abstract

Shot peening induces compressive residual stresses in components that positively influence fatigue life. Thermal and mechanical loading causes those residual stresses to relax. The hole drilling method and xray diffraction is used to measure the thermal relaxation of residual stresses in the nickel-base superalloy ME3.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2022
Accession Number
AD1175634

Entities

People

  • Bryce E Van Velson

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Chemistry
  • Creep
  • Crystal Lattices
  • Crystal Structure
  • Elastic Properties
  • Engineering
  • Fatigue Life
  • Heat Treatment
  • Manufacturing
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanical Properties
  • Mechanical Working
  • Residual Stress
  • Shot Peening
  • Strain Gages
  • Stress Strain Relations
  • Stresses
  • Tensile Strength
  • Turbines

Fields of Study

  • Materials science

Readers

  • Structural Health Monitoring of Composite Structures.