An X-Ray Diffraction Study of the Residual Stress/Strain Distribution in Shot-Peened Two-Phase Brass.
Abstract
X-ray residual stress determination and line broadening analysis were used to study the deformation distributions existing in the surface layers of a shot-peened two-phase brass specimen. The results indicate inhomogeneous partitioning of the plastic strains between the alpha- beta-strains, as well as between the surface layers and the bulk. The microstresses, which occur due to differential deformation between alpha and beta strains, have a maximum in the beta-grains at the material surface, while the macro-residual stresses, which arise due to differential plastic deformation between the surface and the bulk, exhibit a maximum deeper in the material. A qualitative model (describing these residual stress profiles in terms of the plastic strains caused by the peening operation) is presented. Originator supplied keywords include: residual stresses, two-phase materials, peening, shot-peening, alpha brass.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1985
- Accession Number
- ADA152418
Entities
People
- I. C. Noyan
- Jerome B. Cohen
Organizations
- Northwestern University