DWA-USA, the global leader for Aluminum
Metal-Matrix-Composites for Lighter Weight Designs

6092/SiC/17.5p Aluminum Metal-Matrix-Composite (Al MMC) is especially effective for aerostructures applications. Its combination of enhanced strength and stiffness make it ideal for precise-to-form extruded profiles and control surfaces. It possesses the highest degree of manufacturability of all DWA-USA Al MMCs.

6092/SiC/17.5p is a powder metallurgy Al MMC comprised of AA6092 aluminum and 17.5 Vol% Silicon Carbide particles. It is available in vacuum-hot-pressed billet, extruded, forged and sheet product forms.

  • 40-50% increase in elastic modulus over AA6061
  • Significantly enhanced yield and ultimate tensile strength
  • Excellent fatigue resistance
  • Isotropy in thin-section product forms
Units:
Eng

TYPICAL AND MINIMUM MECHANICAL PROPERTIES FOR EXTRUSION AND SHEET

6092/SiC/17.5p-T6
Density= 0.1011 lb/in3
F, ty
ksi
F, tu
ksi
elong.
%
Bar Extrusion, 5in2 Typical L 57 67 7
Sheet, 0.125in Typical L 57 67 6
Sheet, 0.125in Typical LT 55 66 7
Extrusion Minimum L 51 63 3
Sheet Minimum L 50 62 3
Sheet Minimum LT 46 59 3
Notes:
1) Young's Modulus for extrusion is typically 15.5 msi in the L orientation.
2) Young's Modulus for sheet is typically 14.5 msi in both L and LT orientations.
3) Coefficient-of-Thermal-Expansion (CTE) is typicallly 9.2 ppm/°F.
4) Typical Rockwell B hardness is 78-80.
Data is representative for 1 inch maximum section thickness during heat treatment. Mechanical properties will be dependent on the Al MMC material system, product form, geometry and heat treatment method.
Si

TYPICAL AND MINIMUM MECHANICAL PROPERTIES FOR EXTRUSION AND SHEET

6092/SiC/17.5p-T6
Density= 2.80 g/cm3
F, ty
MPa
F, tu
MPa
elong.
%
Bar Extrusion, 31.7cm2 Typical L 393 462 7
Sheet, 3.2mm Typical L 393 462 6
Sheet, 3.2mm Typical LT 379 455 7
Extrusion Minimum L 352 434 3
Sheet Minimum L 344 427 3
Sheet Minimum LT 317 407 3
Notes:
1) Young's Modulus for extrusion is typically 107 GPa in the L orientation.
2) Young's Modulus for sheet is typically 100 GPA in both L and LT orientations.
3) Coefficient-of-Thermal-Expansion (CTE) is typically 16.6 ppm/°C.
4) Typical Rockwell B hardness is 78-80.
Data is representative for 25 mm maximum section thickness during heat treatment. Mechanical properties will be dependent on the Al MMC material system, product form, geometry and heat treatment method.

 

 

MATRIX ALLOY CHEMICAL COMPOSITION FOR 6092/SiC/17.5p

6092/SiC/17.5p
Density= 0.1011 lb/in3 (2.80 g/cm3)
Al Cu Mg Si Fe Zn Ti Ni Cr Mn O Other,
Each
Others,
Total
Bal 0.7-
1.0
0.8-
1.2
0.40-
0.8
0.30
max
0.25
max
0.15
max
-- 0.15
max
0.15
max
0.050-
0.50
0.05
max
0.15
max
Notes:
1) Compositional limits shown as weight percent (wt%).
2) Silicon carbide particle content shall be maintained at 17.5 ±1.0 Vol%.
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Fielded Applications

DWA-USA specializes in new aluminum-based powder metallurgy materials and applications development. We serve our customers throughout the entire development cycle, whether it be an upgrade to an existing design or starting from the ground up. Our track record for transitioning prototyping efforts to real world serial production is unparalleled.

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Density Adjusted Properties of Aluminum MMCs Compared to Steel, Titanium and Aluminum

One of the clear advantages of Al MMCs compared to conventional metallic materials is greatly enhanced strength and stiffness. These property gains are achieved without impacting material density, so the specific properties of Al MMC are dramatically increased. Al MMCs are also isotropic composite materials. Their design space is not dependent on reinforcement orientation.

DWA Aluminum Composites

Aluminum Metal-Matrix-Composites Manufacturing

The Al MMC manufacturing process can be divided into three elements- primary processing, secondary processing and finishing. Unlike other composite materials, after primary processing of the billet, Al MMCs offer a high level of “fit, form and function” when inserted into the industrial manufacturing stream, making use of conventional facilities and equipment.

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