Materials dependence of deformation texture development in various deformation modes
Attempts to understand the development of deformation textures have long been hampered by the following dichotomy: in theory, one expects orientation changes to be governed entirely by the geometry of deformation and thus to be the same for all materials of the same lattice structure and the same deformation modes; yet in experiments, one observes differences between different materials of the same lattice structure. The current work represents an effort to address this problem anew. Four fcc single-phase materials (aluminium, copper, silver, and 70:30 brass) were deformed along three strain-paths (wire-drawing, compression, and torsion), with complete texture determinations before deformation and after strains of roughly 1.0 and 2.0. In parallel, 800 randomly oriented but weighted grains were subjected to simulation of these same tests by the Los Alamos polycrystal plasticity (LApp) code, taking account of the initial textures. An ancillary question which could be addressed in this way is how long initial textures can be remembered by the material; the answer depends on the circumstances and is not always small strains. 8 refs., 3 figs., 1 tab.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Illinois Inst. of Tech., Chicago (USA); Przystupa (M.A.), Redondo Beach, CA (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5486405
- Report Number(s):
- LA-UR-87-4088; CONF-8709172-6; ON: DE88004312
- Resource Relation:
- Conference: 8. international conference on textures of materials, Santa Fe, NM, USA, 21 Sep 1987; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM
DEFORMATION
BRASS
COPPER
SILVER
COMPARATIVE EVALUATIONS
COMPRESSION
COMPUTERIZED SIMULATION
DRAWING
STACKING FAULTS
TEXTURE
TORSION
TWINNING
ALLOYS
COPPER ALLOYS
COPPER BASE ALLOYS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELEMENTS
FABRICATION
MATERIALS WORKING
METALS
SIMULATION
TRANSITION ELEMENTS
ZINC ALLOYS
360101* - Metals & Alloys- Preparation & Fabrication
360102 - Metals & Alloys- Structure & Phase Studies