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dc.contributor.advisorBrewer, Luke N.
dc.contributor.authorSchiel, Jonathan F.
dc.dateSep-14
dc.date.accessioned2014-12-05T20:10:50Z
dc.date.available2014-12-05T20:10:50Z
dc.date.issued2014-09
dc.identifier.urihttp://hdl.handle.net/10945/43994
dc.descriptionApproved for public release; distribution is unlimiteden_US
dc.description.abstractThis thesis presents research on the cold gas-dynamic spray process applied to the deposition of stainless steel coatings. Cold spray deposition is a relatively new process utilized to create corrosion protection coatings and to perform additive repair for large steel structures. This thesis aims to study the effectiveness of the low-pressure cold spray process on four, commercially available, austenitic stainless steel powders by characterizing both the powders and the resultant coatings. Particle velocimetry and fluid dynamics simulation were also utilized to study the in-flight characteristics of the powder. Notably, this thesis presents evidence that austenitic stainless steel can be successfully deposited via the low-pressure cold spray process. Substantial variability was observed in the commercially available austenitic stainless powders, particularly in the phase content, the particle size distribution, and the particle shape. These parameters had a large effect on the particle velocity and subsequent deposition characteristics. In fact, the PG-AMP- 10 powder, which possessed the highest ferrite fraction and had irregular particle shapes, achieved much higher velocities and greater deposition efficiency than the phase-pure and spherically-shaped S5001 powder.en_US
dc.description.urihttp://archive.org/details/thecoldgasdynami1094543994
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. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.titleThe cold gas-dynamic spray and characterization of microcrystalline austenitic stainless steelen_US
dc.typeThesisen_US
dc.contributor.secondreaderMenon, Sarath K.
dc.contributor.departmentMechanical and Aerospace Engineering (MAE)
dc.subject.authorcold sprayen_US
dc.subject.authorstainless steelen_US
dc.subject.authorparticle velocityen_US
dc.subject.authorlaser velocimetryen_US
dc.description.recognitionOutstanding Thesisen_US
dc.description.serviceLieutenant Commander, United States Navyen_US
etd.thesisdegree.nameMechanical Engineeren_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineMechanical and Aerospace Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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