Micro Stresses within Cu Bi-Crystal and Al Tri-Crystal after Plastic Deformation Observed by X-Ray and Neutron Diffraction

Ayumi Shiro; Nishida Masayuki; M.Refai Muslih; Tatsuya Okada; Hanabusa Takao

doi:10.4028/www.scientific.net/MSF.768-769.366

Paper Titles

Thermal Stress Estimation of Tungsten Fiber Reinforced Titanium Composite by In Situ X-Ray Diffraction Method
p.335

Distribution of Residual Stresses in 1070 Single Phase Aluminium with Grain Size Gradient Formed by RBT Treatment
p.343

Comparison of Internal and Residual Stresses Measured by Strain-Dip Test and XRD during High Temperature Deformation of Al-Mg Solid Solutions
p.351

Study on Ductile Damage Progress of Aluminum Single Crystal Using Synchrotron White X-Ray
p.358

Micro Stresses within Cu Bi-Crystal and Al Tri-Crystal after Plastic Deformation Observed by X-Ray and Neutron Diffraction
p.366

Characteristic Evolution of Residual Stress in Shape Memory Fe-Mn-Si-Cr Alloys
p.374

Synchrotron Diffraction Study of the Cementite Phase in Cold Drawn Pearlitic Steel Wires
p.380

Residual Stress Development in Laser Machined PVD-Coated Carbide Cutting Tools
p.391

Prediction of the Distortions Caused by the Redistribution of the Residual Stresses During Machining Using FEM
p.398

HomeMaterials Science ForumMaterials Science Forum Vols. 768-769Micro Stresses within Cu Bi-Crystal and Al...

Micro Stresses within Cu Bi-Crystal and Al Tri-Crystal after Plastic Deformation Observed by X-Ray and Neutron Diffraction

Abstract:

Microscopic residual stresses developed in a copper bi-crystal and in an aluminum tri-crystal after plastic deformation were investigated by X-ray and neutron diffraction. The copper bi-crystal tensile specimen was prepared so as to have a grain boundary along the tensile axis. The aluminum tri-crystal compressive specimen had a triple point and one of the grain boundaries was parallel to the compressive axis. The present study revealed that (1) residual micro-stresses are inhomogeneous within a crystal, (2) average residual stress in each crystal is different from each other, and (3) the direction of principal stress varies from grain to grain. Furthermore, the compatibility of residual stresses existing in both sides of a grain boundary was confirmed in a microscopic scale.