Enhanced decomposition of rapidly solidified microstructures in Al-Fe-Mo and Ti-Al-Er alloys by plastic deformation and applied stress
- Univ. of Illinois, Urbana, IL (United States). Dept. of Materials Science and Engineering
In this work, the effects of plastic deformation and applied stress on enhanced decomposition of rapidly solidified microstructures in Al-8Fe-2Mo and Ti-Er alloys were examined. The results indicate that there is little effect of either plastic deformation or applied stress on decomposition of the Zone A microstructure in Al-8Fe-2Mo. It was concluded that the decomposition of the microstructure during low temperature extrusion must be a result of adiabatic heat generated during the process. The effect of plastic deformation and applied stress on microstructural degradation of erbia-strengthened Ti-Er alloys was found to be significant, the extent of coarsening as identified by average particle size increasing as a result of plastic deformation and with increased applied stress. Recrystallization was observed to reduce these effects. The difference in enhanced decomposition behavior between these two microstructures was concluded to be a result of the mechanism of microstructural degradation and atomic transport.
- OSTI ID:
- 6327827
- Journal Information:
- Acta Metallurgica et Materialia; (United States), Journal Name: Acta Metallurgica et Materialia; (United States) Vol. 41:1; ISSN 0956-7151; ISSN AMATEB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOYS
ALUMINIUM ALLOYS
ATOM TRANSPORT
DATA
DEFORMATION
ELECTRON MICROSCOPY
ERBIUM ADDITIONS
ERBIUM ALLOYS
EXPERIMENTAL DATA
EXTRUSION
FABRICATION
INFORMATION
IRON ALLOYS
MATERIALS WORKING
MICROSCOPY
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NEUTRAL-PARTICLE TRANSPORT
NUMERICAL DATA
PARTICLE SIZE
PHASE TRANSFORMATIONS
RADIATION TRANSPORT
RARE EARTH ADDITIONS
RARE EARTH ALLOYS
SIZE
SOLIDIFICATION
STRESSES
TITANIUM ALLOYS
TITANIUM BASE ALLOYS
TRANSMISSION ELECTRON MICROSCOPY