{"id":{"repo_id":"alabama","oai_identifier":"oai:ir.ua.edu:123456789/17969"},"canonical_url":"https://search.dev.ndltd.org/etd/alabama/oai:ir.ua.edu:123456789/17969","repository":{"repo_id":"alabama","name":"University of Alabama","base_url":"https://ir-api.ua.edu/oai/request"},"display":{"title":"The Corrosion Susceptibility of AA7050 Repaired for Aerospace Applications Via Additive Friction Stir Deposition","abstract":"The purpose of this dissertation is to explore the viability of Additive Friction StirDeposition (AFSD) as a method for the repair of 7XXX-series aluminum alloy aerospace parts byexamining the corrosion response of materials processed with this technique. To date, the majorityof studies involving AFSD have pertained to mechanical and/or microstructural properties ofmaterial produced via AFSD. This leaves a gap in scientific knowledge revolving around thecorrosion susceptibility of these materials. This dissertation contains a combination ofelectrochemical, gravimetric, exposure, and microscopy techniques that were leveraged tounderstand the mechanisms involved in the corrosion of these materials. Key findings include theanodic behavior of as-deposited material produced via AFSD relative to the wrought substratematerial, differences in corrosion response based on height within large-scale builds due to forcedaging from latent and residual heat, better corrosion response for corroded materials that have beenrepaired via AFSD without the removal of corrosion product prior to repair (in the as-depositedstate), and an increase in the efficacy of corrosion-inhibiting surface treatments for as-depositedmaterials produced via AFSD when compared to those applied to wrought substrate. Thesefindings show that AFSD may provide a viable solution for the production and/or repair ofaerospace components, with the understanding that additional heat treatments and corrosion-inhibitingsurface treatments will likely be required for long-term repairs.","abstract_html":"The purpose of this dissertation is to explore the viability of Additive Friction StirDeposition (AFSD) as a method for the repair of 7XXX-series aluminum alloy aerospace parts byexamining the corrosion response of materials processed with this technique. To date, the majorityof studies involving AFSD have pertained to mechanical and/or microstructural properties ofmaterial produced via AFSD. This leaves a gap in scientific knowledge revolving around thecorrosion susceptibility of these materials. This dissertation contains a combination ofelectrochemical, gravimetric, exposure, and microscopy techniques that were leveraged tounderstand the mechanisms involved in the corrosion of these materials. Key findings include theanodic behavior of as-deposited material produced via AFSD relative to the wrought substratematerial, differences in corrosion response based on height within large-scale builds due to forcedaging from latent and residual heat, better corrosion response for corroded materials that have beenrepaired via AFSD without the removal of corrosion product prior to repair (in the as-depositedstate), and an increase in the efficacy of corrosion-inhibiting surface treatments for as-depositedmaterials produced via AFSD when compared to those applied to wrought substrate. Thesefindings show that AFSD may provide a viable solution for the production and/or repair ofaerospace components, with the understanding that additional heat treatments and corrosion-inhibitingsurface treatments will likely be required for long-term repairs.","abstract_has_math":false,"creators":["Geisler, Justin Blake"],"institution":"University of Alabama Libraries","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Kasemer, Matthew","Kumar, Nilesh","Zhang, Qiaofu","Schneider, Judy"],"advisors":["Kubacki, Gregory W."],"committee_chairs":[],"committee_members":[],"year":2026,"date_issued":"2026","date_published":"2026","updated_at":"2026-07-27T18:44:16Z","subjects":["Additive Friction Stir Deposition","Aluminium Alloys","Aluminum Alloys","Corrosion","Intergranular Corrosion","Precipitates"],"languages":["en_US","English"],"rights":["All rights reserved by the author unless otherwise indicated."],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["1217136"],"render_values":[{"text":"1217136","href":null,"code":true}]}]},"links":{"outbound_url":"https://ir.ua.edu/handle/123456789/17969","outbound_label":"Repository record","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Kasemer, Matthew","Kumar, Nilesh","Zhang, Qiaofu","Schneider, Judy"]},{"key":"dc:contributor.advisor","label":"Advisor","values":["Kubacki, Gregory W."]},{"key":"dc:creator","label":"Author","values":["Geisler, Justin Blake"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2026-07-09T13:30:42Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-07-09T13:30:42Z"]},{"key":"dc:date.issued","label":"Date","values":["2026"]},{"key":"dc:publisher","label":"Institution","values":["University of Alabama Libraries"]},{"key":"dc:type","label":"Dc Type","values":["thesis","text"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Additive Friction Stir Deposition","Aluminium Alloys","Aluminum Alloys","Corrosion","Intergranular Corrosion","Precipitates"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]},{"key":"dc:language.iso","label":"Language (ISO)","values":["en_US"]},{"key":"dc:rights","label":"Dc Rights","values":["All rights reserved by the author unless otherwise indicated."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["1217136"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://ir.ua.edu/handle/123456789/17969"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Electronic Thesis or Dissertation"]},{"key":"dc:description.abstract","label":"Abstract","values":["The purpose of this dissertation is to explore the viability of Additive Friction StirDeposition (AFSD) as a method for the repair of 7XXX-series aluminum alloy aerospace parts byexamining the corrosion response of materials processed with this technique. To date, the majorityof studies involving AFSD have pertained to mechanical and/or microstructural properties ofmaterial produced via AFSD. This leaves a gap in scientific knowledge revolving around thecorrosion susceptibility of these materials. This dissertation contains a combination ofelectrochemical, gravimetric, exposure, and microscopy techniques that were leveraged tounderstand the mechanisms involved in the corrosion of these materials. Key findings include theanodic behavior of as-deposited material produced via AFSD relative to the wrought substratematerial, differences in corrosion response based on height within large-scale builds due to forcedaging from latent and residual heat, better corrosion response for corroded materials that have beenrepaired via AFSD without the removal of corrosion product prior to repair (in the as-depositedstate), and an increase in the efficacy of corrosion-inhibiting surface treatments for as-depositedmaterials produced via AFSD when compared to those applied to wrought substrate. Thesefindings show that AFSD may provide a viable solution for the production and/or repair ofaerospace components, with the understanding that additional heat treatments and corrosion-inhibitingsurface treatments will likely be required for long-term repairs."]},{"key":"dc:format.medium","label":"Dc Format Medium","values":["electronic"]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["The Corrosion Susceptibility of AA7050 Repaired for Aerospace Applications Via Additive Friction Stir Deposition"]}]}],"canonical_facts":{"dc:contributor":["Kasemer, Matthew","Kumar, Nilesh","Zhang, Qiaofu","Schneider, Judy"],"dc:contributor.advisor":["Kubacki, Gregory W."],"dc:creator":["Geisler, Justin Blake"],"dc:date.accessioned":["2026-07-09T13:30:42Z"],"dc:date.available":["2026-07-09T13:30:42Z"],"dc:date.issued":["2026"],"dc:description":["Electronic Thesis or Dissertation"],"dc:description.abstract":["The purpose of this dissertation is to explore the viability of Additive Friction StirDeposition (AFSD) as a method for the repair of 7XXX-series aluminum alloy aerospace parts byexamining the corrosion response of materials processed with this technique. To date, the majorityof studies involving AFSD have pertained to mechanical and/or microstructural properties ofmaterial produced via AFSD. This leaves a gap in scientific knowledge revolving around thecorrosion susceptibility of these materials. This dissertation contains a combination ofelectrochemical, gravimetric, exposure, and microscopy techniques that were leveraged tounderstand the mechanisms involved in the corrosion of these materials. Key findings include theanodic behavior of as-deposited material produced via AFSD relative to the wrought substratematerial, differences in corrosion response based on height within large-scale builds due to forcedaging from latent and residual heat, better corrosion response for corroded materials that have beenrepaired via AFSD without the removal of corrosion product prior to repair (in the as-depositedstate), and an increase in the efficacy of corrosion-inhibiting surface treatments for as-depositedmaterials produced via AFSD when compared to those applied to wrought substrate. Thesefindings show that AFSD may provide a viable solution for the production and/or repair ofaerospace components, with the understanding that additional heat treatments and corrosion-inhibitingsurface treatments will likely be required for long-term repairs."],"dc:format.medium":["electronic"],"dc:format.mimetype":["application/pdf"],"dc:identifier.other":["1217136"],"dc:identifier.uri":["https://ir.ua.edu/handle/123456789/17969"],"dc:language":["English"],"dc:language.iso":["en_US"],"dc:publisher":["University of Alabama Libraries"],"dc:rights":["All rights reserved by the author unless otherwise indicated."],"dc:subject":["Additive Friction Stir Deposition","Aluminium Alloys","Aluminum Alloys","Corrosion","Intergranular Corrosion","Precipitates"],"dc:title":["The Corrosion Susceptibility of AA7050 Repaired for Aerospace Applications Via Additive Friction Stir Deposition"],"dc:type":["thesis","text"]},"updated_at":"2026-07-27T18:44:16Z"}