Accession Number:

AD0741711

Title:

Tests on the Source of 'Anomalous' Residual Stresses Obtained by X-Ray Diffraction Techniques.

Descriptive Note:

Technical rept.,

Corporate Author:

NORTHWESTERN UNIV EVANSTON ILL DEPT OF MATERIALS SCIENCE

Personal Author(s):

Report Date:

1971-12-30

Pagination or Media Count:

48.0

Abstract:

The magnitude and origin of residual stresses after uniaxial plastic deformation in Armco iron and 1010 steel have been studied by X-ray diffraction techniques. It was found that both pseudo-macrostresses and microstresses exist. A qualitative theory, due to Weidemann et al for the oscillations in d vs sin squared psi caused by microstresses and that lead to anomalous values of residual stress has been placed on a quantitative basis and tested. A procedure has been developed for obtaining the true macrostress in the presence of such oscillations. Author

Subject Categories:

  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE