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dc.contributor.advisorDutta, Indranath
dc.contributor.authorKing, Joel David
dc.dateDecember 1989
dc.date.accessioned2013-01-23T21:53:40Z
dc.date.available2013-01-23T21:53:40Z
dc.date.issued1989-12
dc.identifier.urihttp://hdl.handle.net/10945/25734
dc.descriptionApproved for public release; distribution is unlimited
dc.description.abstractThe corrosion behavior of a P-130x graphite fiber reinforced 6063 aluminum 0-90 cross plied metal matrix composite was studied. Electrochemical tests were performed on the composite and the monolithic matrix metal in aqueous 3.5% NaCl solutions. Immersion tests were performed on the composite in aqueous 3.5% NaCl solutions. The effects of pH, the presence of sulfite ions, and various heat treatments were investigated. The electrochemical tests included studies of galvanic corrosion, corrosion potential, galvanostaircase cyclic polarization and polarization resistance. Immersion tests showed accelerated corrosion at the exposed interfaces, with preferential attack at transverse fiber layers. Galvanic corrosion was large at low pH values, large graphite area fractions and when the matrix was in the over-aged state. The corrosion potential of the composite was found to be electronegative to the monolith when the Gr-Al interfaces were exposed to the electrolyte. Low pH values and over-aging increased pitting susceptibility. Solutionizing and quenching lowered pitting susceptibility at pH 8 but increased it at pH 4. Low pH values, the presence of sulfite ions and over- aging increased general corrosion rates.
dc.description.urihttp://archive.org/details/characterization00king
dc.format.extent83 p.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
dc.titleCharacterization of the corrosion of a P-130x graphite fiber reinforced 6063 aluminum metal matrix composite.en_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentMechanical Engineering
dc.subject.authoraluminumen_US
dc.subject.authorgraphiteen_US
dc.subject.authormetal matrix compositeen_US
dc.subject.authorMMCen_US
dc.subject.authorcorrosionen_US
dc.subject.authorelectrochemicalen_US
dc.subject.authorsulfiteen_US
dc.subject.authorpHen_US
dc.subject.authorheat treatmenten_US
dc.description.serviceLieutenant, United States Navy
etd.thesisdegree.nameM.S. in Mechanical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineMechanical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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