Preparation of Titanium Metal Matrix Composites Using Additive Manufacturing

In this work, the “4M-System” (Machine for Multi-Material-Manufacturing) has been developed by RHP Technology for the manufacturing of Titanium Metal Matrix Composites. This equipment allows the Additive Layer Manufacturing (ALM) of large structures and uses a Plasma Transferred Arc (PTA) as a heat source for depositing feedstocks (powder/wire) layer by layer onto a substrate. Test coupons, made of Titanium powders and having different concentrations of B4C particles, were deposited to form Metal Matrix Composites. Various processing parameters such as deposition rate, travel speed of the torch as well as plasma parameters (power/current/gas flow) were assessed for getting pore- and crack-free samples. After deposition, the specimens were cut and the cross-sections were analysed by optical- and scanning electron microscopy. Furthermore, the hardness, Young’s Modulus, and tensile strength were measured. Ti-Metal Matrix Composite materials resulted in higher strength and Young´s Modulus in comparison to the pure Ti-metal matrix. Using the 4M-System, B4C particle reinforced Ti-MMC’s were successfully manufactured. Thus the 4M-System proved the capability of joining multi-material concepts, which also promises to create graded concentrations of reinforcement in the material.

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Experimental and Computational Study of Interphase Properties and Mechanics in Titanium Metal Matrix Composites at Elevated Temperatures

10.21236/ada438848 ◽

2005 ◽

Author(s):

D. Osborne ◽

H. Ghonem

Keyword(s):

Metal Matrix Composites ◽

Metal Matrix ◽

Elevated Temperatures ◽

Computational Study ◽

Matrix Composites ◽

Titanium Metal

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CFD Simulation and Experimental Validation of Solidification of Metal Matrix Composites (MMC) in the Presence of Cooled Fibers

Heat Transfer, Volume 2 ◽

10.1115/imece2004-60290 ◽

2004 ◽

Author(s):

R. S. Amano ◽

J. Xie ◽

E. K. Lee ◽

P. K. Rohatgi

Keyword(s):

Metal Matrix Composites ◽

Metal Matrix ◽

Cfd Simulation ◽

Applied Pressure ◽

Casting Process ◽

Processing Parameters ◽

Matrix Composites ◽

Primary Alpha ◽

Parametric Studies ◽

Solidification Of Metal

A new experimental configuration for the casting of metal matrix composites (MMCs) using Al-4.5 wt pct Cu have been used to obtain finer microstructures around the fiber reinforcement. The new configuration allows the fibers to be extended out the mold and cooled by a heat sink. By doing so, the solidification can be made more rapid, and more primary alpha-aluminum phase can be formed on the surface of the fibers. It is believed that this can lead to improvement in the properties of the composite. CFD simulation of the solidification of Al-4.5 wt pct Cu in the casting process has been carried out by using commercial CFD code. Parametric studies on the effects of different processing parameters on solidification time have been simulated using the CFD code. These parameters include, but are not limited to, the pouring temperature of the liquid melt, sink temperature, fiber length extended out of the mold, the mold initial temperature, fiber conductivity, applied pressure, and fiber bundle diameter. Selected simulation results are compared with the available experimental data obtained from the UWM Center for Composites.

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Effect of starting powder grade on sintering and properties of PM titanium metal matrix composites

Powder Metallurgy ◽

10.1179/174329009x457117 ◽

2009 ◽

Vol 52 (4) ◽

pp. 322-328 ◽

Cited By ~ 5

Author(s):

I. Montealegre-Melendez ◽

E. Neubauer ◽

H. Danninger

Keyword(s):

Metal Matrix Composites ◽

Metal Matrix ◽

Matrix Composites ◽

Titanium Metal

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Titanium metal matrix composites

Aerospace Materials - Series in Material Science and Engineering ◽

10.1201/9781420034721.ch18 ◽

2001 ◽

Author(s):

James Robertson ◽

Stuart Godfrey ◽

Malcolm Ward-Close

Keyword(s):

Metal Matrix Composites ◽

Metal Matrix ◽

Matrix Composites ◽

Titanium Metal

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High-performance, low-cost titanium metal matrix composites

Materials Science and Engineering A ◽

10.1016/j.msea.2014.04.066 ◽

2014 ◽

Vol 608 ◽

pp. 155-163 ◽

Cited By ~ 35

Author(s):

M. Zadra ◽

L. Girardini

Keyword(s):

Metal Matrix Composites ◽

Metal Matrix ◽

High Performance ◽

Low Cost ◽

Matrix Composites ◽

Titanium Metal

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An Experimental Determination of Optimum Processing Parameters for Al∕SiC Metal Matrix Composites Made Using Ultrasonic Consolidation

Journal of Engineering Materials and Technology ◽

10.1115/1.2744431 ◽

2007 ◽

Vol 129 (4) ◽

pp. 538-549 ◽

Cited By ~ 39

Author(s):

Y. Yang ◽

G. D. Janaki Ram ◽

B. E. Stucker

Keyword(s):

Bond Strength ◽

Metal Matrix Composites ◽

Process Parameters ◽

Metal Matrix ◽

Oscillation Amplitude ◽

Processing Parameters ◽

Optimum Combination ◽

Matrix Composites ◽

Ultrasonic Consolidation ◽

Push Out

Ultrasonic consolidation, an emerging additive manufacturing technology, is one of the most recent technologies considered for fabrication of metal matrix composites (MMCs). This study was performed to identify the optimum combination of processing parameters, including oscillation amplitude, welding speed, normal force, operating temperature, and fiber orientation, for manufacture of long-fiber-reinforced MMCs. A design of experiments approach (Taguchi L25 orthogonal array) was adopted to statistically determine the influences of individual process parameters. SiC fibers of 0.1mm diameter were successfully embedded into an Al 3003 metal matrix. Push-out testing was employed to evaluate the bond strength between the fiber and the matrix. Data from push-out tests and microstructural studies were analyzed and an optimum combination of parameters was achieved. The effects of process parameters on bond formation and fiber/matrix bond strength are discussed.

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