Studies on Titanium Cenosphere Composite Developed by Powder Metallurgy Route

Abstract

The present study concerns detailed microstructural investigation and property evaluation of titanium-cenosphere composite developed by powder metallurgy route. The main process variables for the development of titanium-cenosphere composite were cenosphere particle size, sintering time, and sintering temperature. Followed by sintering, a detailed characterization of the sintered parts in terms of density, microstructure, composition and phase has been carried out. The compressive strength of the sintered component has also been evaluated in details. The density of the sintered pellets varied with process parameters and is significantly reduced (2.5-2.11 g/cm3) as compared to as-received titanium (4.5 g/cm3). The compressive yield strength of the sintered pellet is reduced as compared to as-received Ti-6Al-4V.

Wear Behavior of Cenosphere Dispersed Titanium Composite Foam Developed by Powder Metallurgy Route

“…A detailed study of the effect of sintering parameters and cenosphere particle size on the percentage of porosity present and density achieved in titanium-cenosphere composites showed that a significant decrease in density is achieved in sintered pellets (1.9 to 2.5 gm/cc) as compared to as received titanium (4.5 gm/cc) and was found to vary with particle size of cenosphere, sintering time and temperature [14]. It was further concluded that optimization of process parameters are essential to avoid damage of cenosphere particles and development of defect free and continuous interface between ceosphere and titanium in the composite [14]. Decrease in density in the composite is attributed to the presence of cenosphere and porosities in the matrix due to development of the material by conventional powder processing route.…”

“…Increase in sintering temperature and sintering time was found to increase density of the composite. However, among all variables, the particle size of cenosphere directly influences the density of the composites [14].…”

Microstructural Analysis and Corrosion Behavior of a Titanium Cenosphere Composite Foam Fabricated by Powder Metallurgy Route

“…The mechanical properties in terms of compressive stress (yield stress and Young's modulus) of these samples have already been reported in a different publication by the same authors. [25] From the literature, it has been found that the yield strength and Young's modulus value of these types of Ticenosphere composite materials fall between 21-58 MPa and 25-42 GPa, respectively. [23] Similar values of mechanical properties were obtained in studies conducted by a group where the samples also showed promising in-vivo behavior in terms of new bone growth when implanted in a white rabbit in New Zealand and observed for one and three months, respectively.…”

“…Among the few studies that explored the cenosphere addition in Ti foam, the influence of cenosphere particle size and the process parameters on the wear behavior of Ti foam [25,28] is worth mentioning. The corrosion rate of Ti foam was found to be at a significantly lower rate than that of solid Ti.…”

Modeling and experimental analysis of Al2219/n-TiC/Gr powder-based process parameters using desirability approach and genetic algorithm

“…[1][2] There are several kinds of hard ceramic nanoparticles, e.g., SiC, B 4 C, TiC, TiB 2 , Al 2 O 3 and soft reinforcements, e.g., MoS 2 or Gr, used as the reinforcements in aluminum alloys to improve the mechanical characteristics. [3][4][5][6][7] However, many researchers suggested that titanium carbide is the most effective ceramic particle as that it has a good range of wettability and a high specific strength within an aluminum alloy. [8][9] The machinability can be improved by adding graphite to a metal-matrix composite (MMC).…”