Detection of ( C + A)-type dislocation self-blocking in magnesium
Abstract
The self-blocking effect predicted theoretically and then observed in intermetallides is established for a pure metal, namely, for magnesium. This effect can be observed only for magnesium single crystals whose axis is parallel to the c axis and whose yield stress behavior σy(T) has a temperature anomaly. For such single crystals, the self-blocking of the (c + a)-type edge dislocations is established during pyramidal slip of type II. The self-blocking is proved by dislocation extension along the preferred direction without external stress. In this case, the
- Publication:
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Russian Physics Journal
- Pub Date:
- January 2012
- DOI:
- 10.1007/s11182-011-9698-9
- Bibcode:
- 2012RuPhJ..54..906G
- Keywords:
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- magnesium;
- dislocation;
- blocking