THE EFFECTS OF CYCLIC STRESSING ON PREFERRED ORIENTATION OF POLYCRYSTALLINE ALUMINUM.
Abstract
In spite of having caused severe macroscopic transgranular plastic deformation, the push-pull cyclic loading process does not appear to produce preferred orientation of the surface layers. Further, the surface morphology does not appear to be conclusively related to pre-existing preferred orientations. Conclusions are based on commercially pure aluminum, a metal with unusually high stacking fault energy, so that they should not be extended to other facecentered-cubic metals that twin easily such as copper and austenitic stainless steel. Since the deformation extends across grain boundaries future efforts might well be devoted to oriented metallographic studies comparing grain boundaries before and after cyclic stressing. Such studies may reveal much about the slip geometry. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1965
- Accession Number
- AD0624651
Entities
People
- George Noboru Yamamoto
Organizations
- University of New Hampshire