Characterization methods of grain boundary and triple junction distributions
โ Scribed by Y.S. Yi; J.S. Kim
- Book ID
- 113894908
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 378 KB
- Volume
- 50
- Category
- Article
- ISSN
- 1359-6462
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The wetting phase transition of grain boundaries (GBs) and grain-boundary triple junctions (GB TJs) by the melt has been studied in the Al-30 wt.%Zn and Al-10 wt.%Zn-4 wt.%Mg polycrystals. The condition of complete wetting is weaker for TJs (r GB > ffiffi ffi 3 p r SL ) than that for GBs (r GB > 2r
We compute the strain fields and the interactions between dislocations at the junctions of classical small-angle grain boundaries. It is shown that, in contrast with the results for infinite small-angle boundaries, there are always forces acting on the dislocations in the arrays that define the grai