Development of pore-free Ti-Al-C MAX/Al-Si MMC composite materials manufactured by squeeze casting infiltration
- Department of Foundry, Polymers and Automation, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, 5 Łukasiewicza St., 50-371 Wrocław (Poland)
- Department of Material Science, Welding and Strength of Material, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, 5 Łukasiewicza St., 50-371 Wrocław (Poland)
- Faculty of Technology and Engineering, Wrocław University of Science and Technology, 78 Armii Krajowej St., 58-302 Wałbrzych (Poland)
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta St., 30-059 Kraków (Poland)
Highlights: • Open-porous MAX phase preforms were synthesized by Microwave Assisted Self-propagating High-temperature Synthesis • Manufactured preforms were infiltrated by Al-Si alloy with the use of Squeeze Casting method to create pore-free composites • Obtained materials were characterized by the means of SEM, TEM and XRD analyses • Mechanical properties were tested and discussed in relation to the microstructures An innovative method of manufacturing of Ti-Al-C MAX/Al-Si MMC composite materials was developed using squeeze casting infiltration of open-porous MAX phase preforms. Self-propagating High-temperature Synthesis (SHS) in microwave-assisted mode was applied for the creation of preforms in the Ti-Al-C system, that were subsequently infiltrated with Al-Si alloy to create dense composite materials. Microstructure and phase composition, structural defects and potential impacts between constituents of manufactured composites were characterized by the means of SEM and TEM microscopies and XRD analysis. No undesired reaction at the interface was observed, but TiC inclusions were identified in the material. Among the mechanical properties, the instrumental Young's modulus and Vickers hardness were established. The hardness and the elastic modulus of the matrix were enhanced 4 to 5 times. Wear behaviour was tested with a “pin-on-flat” method with the reciprocating motion for different load values (0.1, 0.2 and 0.5 MPa) for tool steel counterpart. Wear resistance of the composite material (WR = 1.6–2.3 × 10{sup −4} mm{sup 3}/Nm) was twofold higher than for the sole matrix (WR = 3.5–4.8 × 10{sup −4} mm{sup 3}/Nm). The developed manufacturing method allows the effective fabrication of pore-free MAX phase based MMC composite materials, with significantly higher wear resistance than the widely applied Al-Si alloys.
- OSTI ID:
- 23118128
- Journal Information:
- Materials Characterization, Vol. 146; Other Information: Copyright (c) 2018 Elsevier Inc. All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COMPOSITE MATERIALS
MICROSTRUCTURE
MICROWAVE RADIATION
POROUS MATERIALS
PRESSURE RANGE MEGA PA
SCANNING ELECTRON MICROSCOPY
SILICON ALLOYS
STEELS
SYNTHESIS
TEMPERATURE RANGE 0400-1000 K
TITANIUM CARBIDES
TRANSMISSION ELECTRON MICROSCOPY
VICKERS HARDNESS
WEAR
WEAR RESISTANCE
X-RAY DIFFRACTION