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Title: Quantitative evidence for dislocation emission from grain boundaries

Journal Article · · Scr. Metall.; (United States)
 [1];
  1. New Mexico Inst. of Mining and Tech., Socorro

The study of strain and strain rate on the residual microsture of deformed 304 stainless steel, it was found that small strains grain boundaries and twin boundaries serve principally as sources of dislocations which are generated in response to the requirement of strain compatibility. Although the features of emitted arrays may not be distinguishable from the features of pile-ups, the comparison of dislocation densities near these boundaries to the grain interior and the lack of evidence of interior sources favors the concept of boundary emission. Dislocation pile-ups may still play an importatnt role in work hardening of poly crystals, especially at large strains. (FS)

OSTI ID:
6154661
Journal Information:
Scr. Metall.; (United States), Vol. 13:3
Country of Publication:
United States
Language:
English