MEASUREMENTS OF DEFORMATION RESULTING FROM GRAIN BOUNDARY SLIDING IN ALUMINUM AND ALUMINUM-MAGNESIUM ALLOYS FROM 410 TO 940 F
The contribution of grain boundary sliding to total elongation in creep of pure Al was determined quantitatively as a function of temperature and solid solution alloying with Wg. It is shown experimentally that the deformation due to grain-boundary sliding is not necessarily a constant fraction of the total elongation during the course of any one test. It is demonstrated that the increased severity of plastic deformation in the immediate vicinity of sliding grain boundaries is the consequence of the serration of the grain boundaries. Direct observation shows that the migration of subgrain boundaries plays a role in the accommodation of grain boundary sliding along serrated grain boundaries as well as in the deformation of the grains. (auth)
- Research Organization:
- Massachusetts Inst. of Tech., Cambridge
- DOE Contract Number:
- AT(30-1)-1973
- NSA Number:
- NSA-12-005381
- OSTI ID:
- 4312327
- Report Number(s):
- NYO-4773
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-58
- Country of Publication:
- United States
- Language:
- English
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