Plasticity, dislocation structures and antiphase boundary energies in Fe{sub 3}Al single crystals with chromium
Book
·
OSTI ID:571785
- ETH Zuerich (Switzerland). Inst. fuer Angewandte Physik
The influence of Cr additions on the positive temperature dependence of the critical resolved shear stress of Fe{sub 3}Al is investigated. Single crystals of binary Fe-28 at.% Al and ternary Fe-28 at.% Al-6 at.%Cr with different orientations are deformed in uniaxial compression between room temperature and 1,273 K. The dislocation arrangement and the dissociation of superdislocations are studied by transmission electron microscopy using the weak-beam technique. The operative slip systems are discussed on the basis of the direct measurements of the antiphase boundary energies and of the activation volume.
- OSTI ID:
- 571785
- Report Number(s):
- CONF-961202--
- Country of Publication:
- United States
- Language:
- English
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