{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/22144"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/22144","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Modelling of thermo-mechanical fatigue behavior in superalloys","abstract":"Thermo-mechanical fatigue (TMF) and isothermal fatigue (IF) behavior of coated and uncoated Mar-M247 and, uncoated Mar-M246 was studied. The Mar-M247 was coated with Alpak-S1. The coating consists of a manganese and Aluminium powder slurry that is applied by painting, dipping, or spraying with an air brush.","abstract_html":"Thermo-mechanical fatigue (TMF) and isothermal fatigue (IF) behavior of coated and uncoated Mar-M247 and, uncoated Mar-M246 was studied. The Mar-M247 was coated with Alpak-S1. The coating consists of a manganese and Aluminium powder slurry that is applied by painting, dipping, or spraying with an air brush.","abstract_has_math":false,"creators":["Kadioglu, Yavuz"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Mechanical Engineering","degree_department":null,"school":null,"contributors":["Sehitoglu, Huseyin"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-07T13:30:24Z","date_published":"2011-05-07T13:30:24Z","updated_at":"2026-07-22T22:25:19Z","subjects":["Engineering, Mechanical","Engineering, Materials Science"],"languages":["eng"],"rights":["Copyright 1992 Kadioglu, Yavuz"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9215833","(UMI)AAI9215833"],"render_values":[{"text":"AAI9215833","href":null,"code":true},{"text":"(UMI)AAI9215833","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/22144","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Sehitoglu, Huseyin"]},{"key":"dc:creator","label":"Author","values":["Kadioglu, Yavuz"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-07T13:30:24Z","10000-01-01","1992"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Engineering, Mechanical","Engineering, Materials Science"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 1992 Kadioglu, Yavuz"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9215833","(UMI)AAI9215833","http://hdl.handle.net/2142/22144"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Thermo-mechanical fatigue (TMF) and isothermal fatigue (IF) behavior of coated and uncoated Mar-M247 and, uncoated Mar-M246 was studied. The Mar-M247 was coated with Alpak-S1. The coating consists of a manganese and Aluminium powder slurry that is applied by painting, dipping, or spraying with an air brush.","Thermo-mechanical experiments for coated Mar-M247 were conducted under T$\\sb{\\rm min}$ = 500$\\sp\\circ$C and T$\\sb{\\rm max}$ = 871$\\sp\\circ$C conditions. Both out-of-phase and in-phase strain-temperature phasing conditions were considered. Isothermal experiments were conducted at 500$\\sp\\circ$C and 871$\\sp\\circ$C. Comparison with the uncoated Mar-M247 showed that fatigue lives of coated material could be lower than the uncoated material and the difference was as much as four folds in some cases. For uncoated Mar-M247, only thermo-mechanical out-of-phase experiments were conducted. The temperature limit considered was T$\\sb{\\rm min}$ = 500$\\sp\\circ$C and T$\\sb{\\rm max}$ = 1038$\\sp\\circ$C. SEM, Microprobe and Auger spectroscopy were used to gain insight into oxidation effects at high temperature.","An experimental program for Mar-M246 was also carried out. Due to the coarse grained structure, the stress-strain response indicates variation from specimen to specimen in some cases. The effect of this variation on life does not appear significant, except at smaller strain ranges.","A numerical method is also developed to estimate the stress field due to a surface inhomogeneity in an elastic half space. The technique is based on Eshelby's equivalent inclusion method. The results were used in developing a life prediction methodology for the coated superalloys.","Made available in DSpace on 2011-05-07T13:30:24Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9215833.pdf: 4741420 bytes, checksum: 75a939caecaaa191d1e0e02cd1a9308c (MD5) Previous issue date: 1992","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:55:37Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:25:56-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"]},{"key":"dc:title","label":"Title","values":["Modelling of thermo-mechanical fatigue behavior in superalloys"]}]}],"canonical_facts":{"dc:contributor":["Sehitoglu, Huseyin"],"dc:creator":["Kadioglu, Yavuz"],"dc:date":["2011-05-07T13:30:24Z","10000-01-01","1992"],"dc:description":["Thermo-mechanical fatigue (TMF) and isothermal fatigue (IF) behavior of coated and uncoated Mar-M247 and, uncoated Mar-M246 was studied. The Mar-M247 was coated with Alpak-S1. The coating consists of a manganese and Aluminium powder slurry that is applied by painting, dipping, or spraying with an air brush.","Thermo-mechanical experiments for coated Mar-M247 were conducted under T$\\sb{\\rm min}$ = 500$\\sp\\circ$C and T$\\sb{\\rm max}$ = 871$\\sp\\circ$C conditions. Both out-of-phase and in-phase strain-temperature phasing conditions were considered. Isothermal experiments were conducted at 500$\\sp\\circ$C and 871$\\sp\\circ$C. Comparison with the uncoated Mar-M247 showed that fatigue lives of coated material could be lower than the uncoated material and the difference was as much as four folds in some cases. For uncoated Mar-M247, only thermo-mechanical out-of-phase experiments were conducted. The temperature limit considered was T$\\sb{\\rm min}$ = 500$\\sp\\circ$C and T$\\sb{\\rm max}$ = 1038$\\sp\\circ$C. SEM, Microprobe and Auger spectroscopy were used to gain insight into oxidation effects at high temperature.","An experimental program for Mar-M246 was also carried out. Due to the coarse grained structure, the stress-strain response indicates variation from specimen to specimen in some cases. The effect of this variation on life does not appear significant, except at smaller strain ranges.","A numerical method is also developed to estimate the stress field due to a surface inhomogeneity in an elastic half space. The technique is based on Eshelby's equivalent inclusion method. The results were used in developing a life prediction methodology for the coated superalloys.","Made available in DSpace on 2011-05-07T13:30:24Z (GMT). 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