Determining material properties of metal-matrix composites by NDE
- Westinghouse Electric Corp., Pittsburgh, PA (United States). Science and Technology Center
- DWA Composite Specialities, Chatsworth, CA (United States)
- Agency for Defense Development (Korea, Republic of)
- Ames Lab., IA (United States)
This paper reports on Nondestructive evaluation (NDE) which is a promising means of studying silicon carbide particulate (SiC[sub p])-reinforced aluminum metal-matrix composite (MMC) products at various processing stages. Eddy current techniques are effective in characterizing alloy powders and in evaluating the percentage of reinforcement in Al/SiC[sub p] powder mixtures. Ultrasonic methods can be used to identify SiC[sub p] clusters in large-scale, powder metallurgy processed MMC billets, while eddy current techniques can detect near-surface density variations. Ultrasonic techniques can also be used to determine the anisotropic stiffness constants of composite extrusions; the measured moduli are in good agreement with those determined by tensile testing. These results suggest that NDE can be used to provide on-line, closed-loop control of MMC manufacturing.
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 7181864
- Journal Information:
- JOM (Journal of the Minerals, Metals and Materials Society); (United States), Vol. 44:10; ISSN 1047-4838
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
ALUMINIUM
NONDESTRUCTIVE TESTING
REINFORCED MATERIALS
SILICON CARBIDES
ACOUSTIC TESTING
COMPOSITE MATERIALS
EDDY CURRENT TESTING
MATRIX MATERIALS
METALS
ON-LINE SYSTEMS
POWDERS
SYNTHESIS
TENSILE PROPERTIES
CARBIDES
CARBON COMPOUNDS
ELECTROMAGNETIC TESTING
ELEMENTS
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
SILICON COMPOUNDS
TESTING
360602* - Other Materials- Structure & Phase Studies
360601 - Other Materials- Preparation & Manufacture
420500 - Engineering- Materials Testing