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Stacking faults in deformed zinc and magnesium single crystals

✍ Scribed by F. F. Lavrentev; Yu. A. Pokhil

Publisher
John Wiley and Sons
Year
1976
Tongue
English
Weight
224 KB
Volume
11
Category
Article
ISSN
0232-1300

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✦ Synopsis

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 {1122} planes. The value of stacking fault energy Ξ³ has been determined in Mg crystals (Ξ³ ⋍ 10 erg/cm^2^). Such a low value of Ξ³ is attributed to the segregation of impurities on dislocations.

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