Accession Number : AD0715225

Title :   Residual Stress Analysis in Plastically Deformed Metals of Low Stacking Fault Energy.

Descriptive Note : Mechanical engineering rept.,

Corporate Author : NATIONAL AERONAUTICAL ESTABLISHMENT OTTAWA (ONTARIO)

Personal Author(s) : Wallace,W. ; Terada,T. ; Grzedzielski,M.

Report Date : JAN 1970

Pagination or Media Count : 34

Abstract : Two X-ray diffractometer techniques are used to measure the surface residual stresses and residual stress distributions in cold-rolled alpha-brass (30% Zn). Data obtained by the two-exposure method and the lattice parameter extrapolation method of Wagner et al. are compared with the residual stress distributions suggested by strain-gauge relaxation behaviour. Predominantly tensile surface stresses were measured for deformations up to 50% reduction in thickness and negligibly small stacking fault densities. The causes of various anomalous results are discussed. (Author)

Descriptors :   (*BRASS, STRESSES), X RAY DIFFRACTION, DEFORMATION, STRAIN(MECHANICS), CRYSTAL DEFECTS, CANADA

Subject Categories : Metallurgy and Metallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE