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Characterization and properties of intermetallic Al3Ti alloy synthesized by reactive foil sintering in vacuum
- Source :
- Journal of Materials Research. 31:2706-2713
- Publication Year :
- 2016
- Publisher :
- Springer Science and Business Media LLC, 2016.
-
Abstract
- A dense monolithic intermetallic Al3Ti alloy was successfully synthesized via reactive sintering in vacuum using TC4 alloy and pure aluminum foils with appropriate initial thickness. Energy dispersive spectroscopy (EDS), x-ray diffractometry (XRD), and scanning electron microscopy (SEM) were used to characterize the phase and microstructure of Al3Ti alloy. Ultrasonic measurement was performed to evaluate the physical property of Al3Ti alloy. Different thermal analysis, thermogravimetry (TG) and differential scanning calorimetry (DSC) were used to assess the thermal property of Al3Ti alloy. The compressive tests were carried out on a universal load frame to determine the mechanical properties, including the compressive strength and failure strain of the fabricated intermetallic Al3Ti alloy. The current results indicated that the density of Al3Ti alloy is slightly higher than the theoretical density, the average Young’s modulus is lower than the theoretical value. A trace of aluminum in Al3Ti alloy was detected, which is distinctly affected on the density, Young’s modulus and mechanical properties of this titanium aluminide alloy. The stress–strain curves of Al3Ti alloy shows a linear elastic behavior without any plastic deformation, and the fracture features are the mixed fracture of transgranular and intergranular. Some other fundamental physical and mechanical properties of the Al3Ti alloy were also obtained in the present study.
- Subjects :
- Titanium aluminide
Materials science
Scanning electron microscope
020502 materials
Mechanical Engineering
Metallurgy
Alloy
Intermetallic
Sintering
02 engineering and technology
engineering.material
021001 nanoscience & nanotechnology
Condensed Matter Physics
Microstructure
chemistry.chemical_compound
Compressive strength
0205 materials engineering
chemistry
Mechanics of Materials
engineering
General Materials Science
0210 nano-technology
Thermal analysis
Subjects
Details
- ISSN :
- 20445326 and 08842914
- Volume :
- 31
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Research
- Accession number :
- edsair.doi...........75e55f02e587dd022991a353b544f462