Effects of alloy elements (Mg, Zn, Sn) on the microstructures and compression properties of high-volume-fraction TiC x /Al composites

Effects of alloy elements (Mg, Zn, Sn) on the microstructures and compression properties of high-volume-fraction TiC x /Al composites

The addition of Mg significantly improves the strength of the 50 vol.% TiC x /Al composite, and the ultimate compression strength of the TiC x /Al–Mg composite is about 353 MPa higher than that of the TiC x /Al composite. The addition of Zn improves the ductility of the composite, the fracture strai...

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Veröffentlicht in:Scripta materialia 2010-12, Vol.63 (12), p.1209-1211
Hauptverfasser: Shu, Shili, Lu, Jianbang, Qiu, Feng, Xuan, Qianqian, Jiang, Qichuan
Format: Artikel
Sprache:eng
Schlagworte:
Alloying elements
Aluminum
Combustion synthesis
Composites
Compressive properties
Fracture mechanics
Mechanical properties
Microstructure
Strain
Tin
Titanium carbide
Work hardening
Zinc base alloys
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Zusammenfassung:The addition of Mg significantly improves the strength of the 50 vol.% TiC x /Al composite, and the ultimate compression strength of the TiC x /Al–Mg composite is about 353 MPa higher than that of the TiC x /Al composite. The addition of Zn improves the ductility of the composite, the fracture strain of which increases from 7.53% to 9.35%. With the addition of Sn, the TiC x /Al–Sn composite exhibits the highest work-hardening capacity, which is about 3.64 times higher than that of the TiC x /Al composite.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2010.08.040