National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Nukleace dislokací v hranici mezi zrny během deformace
Gemperle, Antonín ; Gemperlová, Juliana ; Gärtnerová, Viera
New mechanism of slip transfer across grain boundary was discovered. Slip dislocations accumulate in the boundary and create important internal stresses that nucleate a set of close parallel sources. These emit dislocations into the undeformed grain.
Microstructure and phase composition of rapidly solidified Al-Ni-Zr alloys
Verner, J. ; Vojtěch, D. ; Bártová, Barbora ; Gemperle, Antonín ; Studnička, Václav
Aluminium alloys with transition elements prepared by rapid qienchinf methods have tendencies to form nanocrystalline and amorphous structures. These alloys high tensile strength and good stability at higher temperature. Microstructure, phase composition and changes at elevated temperature of AlNi 18.5 and AlNi 17 Zr 1.8 alloys have been investigated in our experimental study.

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