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Stacking faults in deformed zinc and magnesium single crystals
Author(s) -
Lavrentev F. F.,
Pokhil Yu. A.
Publication year - 1976
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19760110910
Subject(s) - stacking , crystallography , materials science , transmission electron microscopy , stacking fault energy , stacking fault , slip (aerodynamics) , impurity , zinc , magnesium , dislocation , condensed matter physics , chemistry , nanotechnology , metallurgy , physics , organic chemistry , thermodynamics
Abstract Using the transmission electron microscopy dissociated dislocations containing stacking faults were observed in Mg single crystals, deformed in (0001) <1120> slip system, and in Zn single crystals deformed in {1122} <1123> slip system. The overlapping flat stacking faults lying in {1102} planes and dissociated triple nodes in (0001) planes are observed in Mg. In Zn flat stacking faults are found in {11 2 2} planes. The value of stacking fault energy γ has been determined in Mg crystals (γ ⋍ 10 erg/cm 2 ). Such a low value of γ is attributed to the segregation of impurities on dislocations.