Nondestructive Eddy Current Evaluation of Anisotropic Conductivities of Silicon Carbide Reinforced Aluminum Metal-Matrix Composite Extrusions-Reference-Cited by-同舟云学术

Nondestructive Eddy Current Evaluation of Anisotropic Conductivities of Silicon Carbide Reinforced Aluminum Metal-Matrix Composite Extrusions

Published:1994-07-01 Issue:3 Volume:116 Page:647-656
ISSN:0742-4795
Container-title:Journal of Engineering for Gas Turbines and Power
language:en
Short-container-title:

Author:

Liaw P. K.¹,Pitchumani R.²,Hsu D. K.³,Jeong H.⁴,Yao S. C.⁵

Affiliation:

1. Department of Materials Science and Engineering, The University of Tennessee, Knoxville, TN 37996-2200

2. Center for Composite Materials, University of Delaware, Newark, DE 19716

3. Center for Nondestructive Evaluation, Iowa State University, Ames, IA 50011

4. Agency for Defense Development, DaeJon, Korea

5. Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213

Abstract

Nondestructive eddy current methods were used to evaluate the electrical conductivity behavior of silicon-carbide particulate (SiCp) reinforced aluminum (Al) metal-matrix composite extrusions. The composites investigated included 2124, 6061, and 7091 Al base alloys reinforced by SiCp. The composite extrusions exhibited anisotropic conductivities with the maximum conductivity occurring along the extrusion plane. Microstructural characterization showed that the observed anisotropic conductivities could result from the preferred orientation distribution of SiCp. A theoretical model was formulated to quantify the influence of composite constituents (SiCp, intermetallics, and Al base alloy) on the anisotropic conductivities of the composites. The theoretical predictions of conductivities were found to be in good agreement with the experimental results.

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Link

http://asmedigitalcollection.asme.org/gasturbinespower/article-pdf/116/3/647/5703453/647_1.pdf

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