Internal Residual Strain of GlidCop for Materials of the High-Heat-Load Components

Mutsumi Sano; Sunao Takahashi; Atsuo Watanabe; Hideo Kitamura; Koji Kiriyama; Takahisa Shobu

doi:10.4028/www.scientific.net/MSF.652.222

Paper Titles

The Robot Concept at STRESS-SPEC for the Characterisation or Semi-Finished Products
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Hybrid Measurement of CT and Strain Distribution of Internal Crack Using Synchrotron High-Energy Monochromatic X-Rays
p.202

Measurements of Residual Stress in a Welded Compact Tension Specimen Using the Neutron Diffraction and Slitting Techniques
p.210

The Use of Diffraction to Study Fatigue Crack Tip Mechanics
p.216

Internal Residual Strain of GlidCop for Materials of the High-Heat-Load Components
p.222

Effect of Initial Residual Stress on Stress Relaxation in Cold-Drawn Steel Rods
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Tensile Deformation Behaviors of Metastable Austenitic Stainless Steels Studied by Neutron Diffraction
p.233

Application Software Development for the Engineering Materials Diffractometer, TAKUMI
p.238

Neutron Stress Measurement of Coarse Crystal Grain in Aluminum Casting Alloy
p.243

HomeMaterials Science ForumMaterials Science Forum Vol. 652Internal Residual Strain of GlidCop for Materials...

Internal Residual Strain of GlidCop for Materials of the High-Heat-Load Components

Abstract:

We measured internal residual strain of GlidCopTM, a copper dispersion strengthened with aluminum oxide. The residual strains were measured by X-ray diffraction using synchrotron radiation. The purpose of this study is to verify the accuracy of an elastic-plastic analysis, which has been employed for the fatigue life prediction of GlidCop. As a result, the residual strain was estimated to be 0.11- 0.13% at any number of cycles, which is in good agreement with the analysis solutions. As to the plastic strain, we need to increase the accuracy of the calibration curve for the relationship between the FWHM of the diffraction profile and the plastic strain.