X-Ray Double-Crystal Diffractometer Determination of Excess Dislocation Densities of Surface Layer and Bulk in Stress Corrosion Cracking.
Abstract
The excess dislocation densities in surface layer and bulk of 304 stainless steel and titanium aluminum alloys were determined by X-ray rocking curve measurements combined with X-ray topography. Up to a critical density of excess dislocations, the surface layer exerted a barrier effect on the egression of excess dislocations from the bulk. When this critical value was exceeded, macroscopic mechanical instability set in. Methods were presented to predict the stress corrosion lifetime of alloys by non-destructive X-ray measurements. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1978
- Accession Number
- ADA062162
Entities
People
- I. R. Kramer
- R. Yazici
- S. Weissmann
- T. Tsakalakos
Organizations
- Rutgers University–New Brunswick