Synthesis of Al/Al sub 3 Ti two-phase alloys by mechanical alloying
We have mechanically alloyed mixtures of elemental powders to prepare fine-grain two-phase A1/A1{sub 3}Ti powders at the compositions A1-20at% Ti and Al-10at% Ti. Hexane was used to prevent agglomeration of the powder during MA. Carbon from the decomposition of the hexane was incorporated in the powder. It reacted with Ti to form a fine dispersion of carbides in the final hot-pressed compact. We consolidated the mechanically alloyed powders by hot-pressing. Yield strength and ductility were measured in compression. At 25{degree}C, the compressive yield strengths were 1.25 and 0.6 GPa for the A1-20at% Ti and Al-10at% Ti alloys, respectively. The ductility of the A1-10at% Ti alloy exceeded 20% for 25 < T < 500{degree}C. 25 refs., 6 figs.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5346564
- Report Number(s):
- LA-UR-91-3051; CONF-910938-2; ON: DE92000193
- Resource Relation:
- Conference: International conference on high temperature aluminides and intermetallics, San Diego, CA (United States), 17-19 Sep 1991
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM BASE ALLOYS
SYNTHESIS
TITANIUM ALLOYS
ALUMINIUM
COMPRESSION
DUCTILITY
HOT PRESSING
PHASE STUDIES
YIELD STRENGTH
ALLOYS
ALUMINIUM ALLOYS
ELEMENTS
FABRICATION
MATERIALS WORKING
MECHANICAL PROPERTIES
METALS
PRESSING
TENSILE PROPERTIES
360101* - Metals & Alloys- Preparation & Fabrication
360102 - Metals & Alloys- Structure & Phase Studies
360103 - Metals & Alloys- Mechanical Properties