Changes of microstructure during post-deformation annealing in {alpha}-CuAl
- Univ. of Vienna (Austria). Institut fuer Materialphysik
It is well investigated that concentrated {alpha}-CuAl shows effects of short-range order (SRO) which for thermodynamical reasons are a function of temperature. In most cases, however, it was tried rather to carefully avoid complications by a defect structure than to study SRO-effects in the presence of a heavily defected microstructure after plastic deformation. Depending on the temperature ranges of recovery and recrystallization, defect annihilation of a cold-worked alloy may occur simultaneously with changes in the degree of SRO during an annealing treatment. In previous works on {alpha}-AgZn it has been shown that these processes of defect recovery and SRO could be separated. For the technical application of a material, but also as a basis for the separation of SRO-effects from effects of defect annealing it is of great interest to investigate the microstructural changes during post-deformation annealing. In a preliminary study on the interaction between SRO and post-deformation annealing certain stages of defect annealing could be detected. In the present work the authors concentrate on the interpretation of the microstructure of these stages as studied by TEM.
- OSTI ID:
- 691334
- Journal Information:
- Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 5 Vol. 41; ISSN 1359-6462; ISSN SCMAF7
- Country of Publication:
- United States
- Language:
- English
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