Effect of TRIPLEX heat treatment on tensile properties of in situ synthesized (TiB + La 2O 3)/Ti composite

Effect of TRIPLEX heat treatment on tensile properties of in situ synthesized (TiB + La 2O 3)/Ti composite

The effects of β and TRIPLEX heat treatment on the microstructure and on the tensile properties of in situ synthesized (TiB + La 2O 3)/Ti composite were studied. The phases were identified by X-ray diffraction. The microstructures of titanium matrix composite before and after heat treatment were cha...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2010-08, Vol.527 (21), p.5811-5817
Hauptverfasser: Li, Jiuxiao, Wang, Liqiang, Qin, Jining, Chen, Yifei, Lu, Weijie, Zhang, Di
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Diffraction
Elasticity. Plasticity
Exact sciences and technology
Fibre reinforced metals
Heat treatment
Laminar
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Microstructure
Particulate composites
Phases
Powder metallurgy. Composite materials
Production techniques
Reinforcement
Tensile properties
Titanium
Titanium matrix composite
TRIPLEX heat treatment
β heat treatment
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Zusammenfassung:The effects of β and TRIPLEX heat treatment on the microstructure and on the tensile properties of in situ synthesized (TiB + La 2O 3)/Ti composite were studied. The phases were identified by X-ray diffraction. The microstructures of titanium matrix composite before and after heat treatment were characterized by optical microscopy. The reinforcements (TiB whiskers and La 2O 3) after heat treatment were observed by transmission electron microscopy (TEM). Both room temperature and high temperature (600 °C, 650 °C and 700 °C) tensile properties of the specimens were tested. The results showed that the microstructures of specimens after both β and TRIPLEX heat treatment were laminar α. The room temperature and high temperature ductility of TRIPLEX heat treatment was better than that of β heat treatment. Both TiB whiskers and La 2O 3 particles were stable after heat treatment.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2010.05.065