Dissociation of dislocations in Al[sub 67]Mn[sub 8]Ti[sub 26] deformed at ambient and high temperatures
Journal Article
·
· Scripta Metallurgica et Materialia; (United States)
OSTI ID:6450745
- Shanghai Jiao Tong Univ., Shanghai (China)
The L1[sub 2] structured Al[sub 3]Ti-based alloys are now of considerable interest because they have shown appreciable compressive ductility at room temperature. It has been determined that the slip systems in L1[sub 2]Al[sub 3]Ti alloys are <110>(111),but studies on the dislocation structures in the deformed alloys give conflicting results. In the present study, the dislocation structures and dissociation modes of superdislocations in the Al[sub 67]Mn[sub 8]Ti[sub 26] alloy deformed at ambient and elevated temperatures were investigated by TEM. The temperature dependence of mechanical properties of this alloy are discussed in relation to the observed dislocation structures.
- OSTI ID:
- 6450745
- Journal Information:
- Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 28:12; ISSN SCRMEX; ISSN 0956-716X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ALLOYS
AMBIENT TEMPERATURE
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DATA
DEFORMATION
DISLOCATIONS
DUCTILITY
ELECTRON MICROSCOPY
EXPERIMENTAL DATA
INFORMATION
LINE DEFECTS
MANGANESE ALLOYS
MECHANICAL PROPERTIES
MICROSCOPY
NUMERICAL DATA
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
TENSILE PROPERTIES
TITANIUM ALLOYS
TRANSMISSION ELECTRON MICROSCOPY
360102* -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ALLOYS
AMBIENT TEMPERATURE
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DATA
DEFORMATION
DISLOCATIONS
DUCTILITY
ELECTRON MICROSCOPY
EXPERIMENTAL DATA
INFORMATION
LINE DEFECTS
MANGANESE ALLOYS
MECHANICAL PROPERTIES
MICROSCOPY
NUMERICAL DATA
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
TENSILE PROPERTIES
TITANIUM ALLOYS
TRANSMISSION ELECTRON MICROSCOPY