Microstructural evaluation of Ti-6Al-4V with widmanstatten structure and thermal barrier coating
The affinity of titanium alloys by oxygen is one of the main factors that limit their application as structural material at high temperatures. Coatings become important due to the needs to develop materials that can be used in more aggressive conditions. The aim of this work is to evaluate the micro...
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| Veröffentlicht in: | Tecnologia em Metalurgia, Materiais e Mineracao Materiais e Mineracao, 2011-01, Vol.20110718, p.621-629 |
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| container_title | Tecnologia em Metalurgia, Materiais e Mineracao |
| container_volume | 20110718 |
| creator | Briguente, Luciana Aparecida Narciso Da Silva Reis, Danieli Aparecida Pereira De Moura Neto, Carlos Pasqualin, Giovanni Franco Barboza, Miguel Justino Ribeiro Briguente, Flavio Perpetuo |
| description | The affinity of titanium alloys by oxygen is one of the main factors that limit their application as structural material at high temperatures. Coatings become important due to the needs to develop materials that can be used in more aggressive conditions. The aim of this work is to evaluate the microstructure after creep test of Ti-6Al-4V with Widmanstatten structure with thermal barrier coating (CoNiCrAlY + ZrO(2)), applied by thermal spray. Creep tests were performed at 600 degree C, and stress conditions of 125, 250 and 319 MPa at constant load. After creep test the material was analyzed by optical microscopy and scanning electron microscopy. The micro structural analysis shows that the material had ductile fracture characterized by the formation and coalescence of microcavities with different shape and sizes. The quantity and form of the microcavities are influenced by stress applied during creep tests. |
| format | Article |
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Coatings become important due to the needs to develop materials that can be used in more aggressive conditions. The aim of this work is to evaluate the microstructure after creep test of Ti-6Al-4V with Widmanstatten structure with thermal barrier coating (CoNiCrAlY + ZrO(2)), applied by thermal spray. Creep tests were performed at 600 degree C, and stress conditions of 125, 250 and 319 MPa at constant load. After creep test the material was analyzed by optical microscopy and scanning electron microscopy. The micro structural analysis shows that the material had ductile fracture characterized by the formation and coalescence of microcavities with different shape and sizes. 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The quantity and form of the microcavities are influenced by stress applied during creep tests.</description><subject>Creep tests</subject><subject>Microcavities</subject><subject>Microstructure</subject><subject>Stresses</subject><subject>Thermal barrier coatings</subject><subject>Titanium base alloys</subject><subject>Widmanstatten structure</subject><subject>Zirconium dioxide</subject><issn>2176-1515</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqVjLEOgjAURTtoIlH-oaMLCQUKszEaFzfiis_ykCal1fZVf18G_QCXc5dzz4IlhWjqTEghVywNQd_yopGiFFWTsOtZK-8C-agoejAcX2AikHaWu4G3Oqt3Jqsu_K1pnNFPYAMBEVr-eyEH23Ma0U9z4Abea_Rcubli7xu2HMAETL-7Ztvjod2fsod3z4iBukkHhcaARRdDJ-pGlLLIZV7-oX4AYapJrQ</recordid><startdate>20110101</startdate><enddate>20110101</enddate><creator>Briguente, Luciana Aparecida Narciso Da Silva</creator><creator>Reis, Danieli Aparecida Pereira</creator><creator>De Moura Neto, Carlos</creator><creator>Pasqualin, Giovanni Franco</creator><creator>Barboza, Miguel Justino Ribeiro</creator><creator>Briguente, Flavio Perpetuo</creator><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20110101</creationdate><title>Microstructural evaluation of Ti-6Al-4V with widmanstatten structure and thermal barrier coating</title><author>Briguente, Luciana Aparecida Narciso Da Silva ; Reis, Danieli Aparecida Pereira ; De Moura Neto, Carlos ; Pasqualin, Giovanni Franco ; Barboza, Miguel Justino Ribeiro ; Briguente, Flavio Perpetuo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_miscellaneous_16713520503</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Creep tests</topic><topic>Microcavities</topic><topic>Microstructure</topic><topic>Stresses</topic><topic>Thermal barrier coatings</topic><topic>Titanium base alloys</topic><topic>Widmanstatten structure</topic><topic>Zirconium dioxide</topic><toplevel>online_resources</toplevel><creatorcontrib>Briguente, Luciana Aparecida Narciso Da Silva</creatorcontrib><creatorcontrib>Reis, Danieli Aparecida Pereira</creatorcontrib><creatorcontrib>De Moura Neto, Carlos</creatorcontrib><creatorcontrib>Pasqualin, Giovanni Franco</creatorcontrib><creatorcontrib>Barboza, Miguel Justino Ribeiro</creatorcontrib><creatorcontrib>Briguente, Flavio Perpetuo</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Tecnologia em Metalurgia, Materiais e Mineracao</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Briguente, Luciana Aparecida Narciso Da Silva</au><au>Reis, Danieli Aparecida Pereira</au><au>De Moura Neto, Carlos</au><au>Pasqualin, Giovanni Franco</au><au>Barboza, Miguel Justino Ribeiro</au><au>Briguente, Flavio Perpetuo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microstructural evaluation of Ti-6Al-4V with widmanstatten structure and thermal barrier coating</atitle><jtitle>Tecnologia em Metalurgia, Materiais e Mineracao</jtitle><date>2011-01-01</date><risdate>2011</risdate><volume>20110718</volume><spage>621</spage><epage>629</epage><pages>621-629</pages><issn>2176-1515</issn><abstract>The affinity of titanium alloys by oxygen is one of the main factors that limit their application as structural material at high temperatures. Coatings become important due to the needs to develop materials that can be used in more aggressive conditions. The aim of this work is to evaluate the microstructure after creep test of Ti-6Al-4V with Widmanstatten structure with thermal barrier coating (CoNiCrAlY + ZrO(2)), applied by thermal spray. Creep tests were performed at 600 degree C, and stress conditions of 125, 250 and 319 MPa at constant load. After creep test the material was analyzed by optical microscopy and scanning electron microscopy. The micro structural analysis shows that the material had ductile fracture characterized by the formation and coalescence of microcavities with different shape and sizes. The quantity and form of the microcavities are influenced by stress applied during creep tests.</abstract></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2176-1515 |
| ispartof | Tecnologia em Metalurgia, Materiais e Mineracao, 2011-01, Vol.20110718, p.621-629 |
| issn | 2176-1515 |
| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | Creep tests Microcavities Microstructure Stresses Thermal barrier coatings Titanium base alloys Widmanstatten structure Zirconium dioxide |
| title | Microstructural evaluation of Ti-6Al-4V with widmanstatten structure and thermal barrier coating |
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