Changes in the degree of LRO in B2-ordered intermetallic FeAl[Long Range Order]
Changes in the degree of long-range order (LRO) have been investigated in B2-ordered intermetallic Fe-44.8at%Al by electrical resistivity measurement (resistometry). Order variations were observed during isochronal annealing for different states of initial thermal treatment. A complicated behavior of resistivity changes with temperature is observed when starting with a small degree of disorder. Very slight re-ordering is found already at about 470K and is surprisingly followed by a slight disordering above 530K. Only for very long annealing times the expected ordering tendency is observed in this temperature range. Above 710K re-ordering is continued and reversible equilibrium changes of order with temperature are observed above 830K.
- Research Organization:
- Univ. of Vienna (AT)
- OSTI ID:
- 20001653
- Report Number(s):
- CONF-981104--; ISBN 1-55899-458-0; ISSN 1067-9995
- Country of Publication:
- United States
- Language:
- English
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