Production of Ti-35Nb alloy by powder metallurgy for aerospace application
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.4271/2004-01-3339 http://hdl.handle.net/11449/68004 |
Resumo: | Titanium and its alloys provide high strength-to-weight ratios, good fatigue strength and increased corrosion resistance compared with others materials. Its acceptance in aerospace has been limited by costs considerations such as high cost of raw material, high buy-to-fly ratios and expensive machining operations. Significant cost reductions can be obtained by vacuum sintering and powder metallurgy (P/M) techniques by producing near net shapes and consequently minimizing material waste and machining time. The Ti 35Nb alloy exhibit a low modulus of elasticity. Stemming from the unique combination of high strength, low modulus of elasticity and low density, this alloy is intrinsically more resistant to shock and explosion damages than most other engineering materials. Samples were produced by mixing of initial metallic powders followed by uniaxial and cold isostatic pressing with subsequent densification by sintering between 900 and 1600 °C, in vacuum. Sintering behavior was studied by means of dilatometry. Sintered samples were characterized for phase composition, microstructure and microhardness by X-ray diffraction, scanning electron microscopy and Vickers indentation, respectively. Density was measured by Archimedes method. Copyright © 2004 Society of Automotive Engineers, Inc. |
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Production of Ti-35Nb alloy by powder metallurgy for aerospace applicationArchimedes methodsCold isostatic pressingCosts considerationDilatometryEngineering materialsFatigue strengthHigh costsHigh strengthIn-vacuumLow densityMachining operationsMachining timeMaterial wastesMetallic powderNear net shapeSintered samplesSintering behaviorsStrength to weight ratioVacuum sinteringVickers indentationAerospace applicationsCorrosion resistanceElastic moduliHigh strength alloysNiobiumNiobium alloysPowder metallurgyScanning electron microscopyTitaniumTitanium alloysVacuumX ray diffractionSinteringTitanium and its alloys provide high strength-to-weight ratios, good fatigue strength and increased corrosion resistance compared with others materials. Its acceptance in aerospace has been limited by costs considerations such as high cost of raw material, high buy-to-fly ratios and expensive machining operations. Significant cost reductions can be obtained by vacuum sintering and powder metallurgy (P/M) techniques by producing near net shapes and consequently minimizing material waste and machining time. The Ti 35Nb alloy exhibit a low modulus of elasticity. Stemming from the unique combination of high strength, low modulus of elasticity and low density, this alloy is intrinsically more resistant to shock and explosion damages than most other engineering materials. Samples were produced by mixing of initial metallic powders followed by uniaxial and cold isostatic pressing with subsequent densification by sintering between 900 and 1600 °C, in vacuum. Sintering behavior was studied by means of dilatometry. Sintered samples were characterized for phase composition, microstructure and microhardness by X-ray diffraction, scanning electron microscopy and Vickers indentation, respectively. Density was measured by Archimedes method. Copyright © 2004 Society of Automotive Engineers, Inc.Universidade Estadual Paulista - UNESP FEGInstituto de Aeronáutica e Espaço IAe CTAUniversidade Estadual Paulista - UNESP FEGUniversidade Estadual Paulista (Unesp)CTASantos, Dalcy Roberto Dos [UNESP]Pereira, Marcelo dos Santos [UNESP]Henriques, Vinicius André RodriguesCairo, Carlos Alberto Alves2014-05-27T11:21:13Z2014-05-27T11:21:13Z2004-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://dx.doi.org/10.4271/2004-01-3339SAE Technical Papers.http://hdl.handle.net/11449/6800410.4271/2004-01-33392-s2.0-8487722663993867307701471786464565985923561Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSAE Technical Papersinfo:eu-repo/semantics/openAccess2021-10-22T20:49:05Zoai:repositorio.unesp.br:11449/68004Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T20:49:05Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Production of Ti-35Nb alloy by powder metallurgy for aerospace application |
title |
Production of Ti-35Nb alloy by powder metallurgy for aerospace application |
spellingShingle |
Production of Ti-35Nb alloy by powder metallurgy for aerospace application Santos, Dalcy Roberto Dos [UNESP] Archimedes methods Cold isostatic pressing Costs consideration Dilatometry Engineering materials Fatigue strength High costs High strength In-vacuum Low density Machining operations Machining time Material wastes Metallic powder Near net shape Sintered samples Sintering behaviors Strength to weight ratio Vacuum sintering Vickers indentation Aerospace applications Corrosion resistance Elastic moduli High strength alloys Niobium Niobium alloys Powder metallurgy Scanning electron microscopy Titanium Titanium alloys Vacuum X ray diffraction Sintering |
title_short |
Production of Ti-35Nb alloy by powder metallurgy for aerospace application |
title_full |
Production of Ti-35Nb alloy by powder metallurgy for aerospace application |
title_fullStr |
Production of Ti-35Nb alloy by powder metallurgy for aerospace application |
title_full_unstemmed |
Production of Ti-35Nb alloy by powder metallurgy for aerospace application |
title_sort |
Production of Ti-35Nb alloy by powder metallurgy for aerospace application |
author |
Santos, Dalcy Roberto Dos [UNESP] |
author_facet |
Santos, Dalcy Roberto Dos [UNESP] Pereira, Marcelo dos Santos [UNESP] Henriques, Vinicius André Rodrigues Cairo, Carlos Alberto Alves |
author_role |
author |
author2 |
Pereira, Marcelo dos Santos [UNESP] Henriques, Vinicius André Rodrigues Cairo, Carlos Alberto Alves |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) CTA |
dc.contributor.author.fl_str_mv |
Santos, Dalcy Roberto Dos [UNESP] Pereira, Marcelo dos Santos [UNESP] Henriques, Vinicius André Rodrigues Cairo, Carlos Alberto Alves |
dc.subject.por.fl_str_mv |
Archimedes methods Cold isostatic pressing Costs consideration Dilatometry Engineering materials Fatigue strength High costs High strength In-vacuum Low density Machining operations Machining time Material wastes Metallic powder Near net shape Sintered samples Sintering behaviors Strength to weight ratio Vacuum sintering Vickers indentation Aerospace applications Corrosion resistance Elastic moduli High strength alloys Niobium Niobium alloys Powder metallurgy Scanning electron microscopy Titanium Titanium alloys Vacuum X ray diffraction Sintering |
topic |
Archimedes methods Cold isostatic pressing Costs consideration Dilatometry Engineering materials Fatigue strength High costs High strength In-vacuum Low density Machining operations Machining time Material wastes Metallic powder Near net shape Sintered samples Sintering behaviors Strength to weight ratio Vacuum sintering Vickers indentation Aerospace applications Corrosion resistance Elastic moduli High strength alloys Niobium Niobium alloys Powder metallurgy Scanning electron microscopy Titanium Titanium alloys Vacuum X ray diffraction Sintering |
description |
Titanium and its alloys provide high strength-to-weight ratios, good fatigue strength and increased corrosion resistance compared with others materials. Its acceptance in aerospace has been limited by costs considerations such as high cost of raw material, high buy-to-fly ratios and expensive machining operations. Significant cost reductions can be obtained by vacuum sintering and powder metallurgy (P/M) techniques by producing near net shapes and consequently minimizing material waste and machining time. The Ti 35Nb alloy exhibit a low modulus of elasticity. Stemming from the unique combination of high strength, low modulus of elasticity and low density, this alloy is intrinsically more resistant to shock and explosion damages than most other engineering materials. Samples were produced by mixing of initial metallic powders followed by uniaxial and cold isostatic pressing with subsequent densification by sintering between 900 and 1600 °C, in vacuum. Sintering behavior was studied by means of dilatometry. Sintered samples were characterized for phase composition, microstructure and microhardness by X-ray diffraction, scanning electron microscopy and Vickers indentation, respectively. Density was measured by Archimedes method. Copyright © 2004 Society of Automotive Engineers, Inc. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-12-01 2014-05-27T11:21:13Z 2014-05-27T11:21:13Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.4271/2004-01-3339 SAE Technical Papers. http://hdl.handle.net/11449/68004 10.4271/2004-01-3339 2-s2.0-84877226639 9386730770147178 6464565985923561 |
url |
http://dx.doi.org/10.4271/2004-01-3339 http://hdl.handle.net/11449/68004 |
identifier_str_mv |
SAE Technical Papers. 10.4271/2004-01-3339 2-s2.0-84877226639 9386730770147178 6464565985923561 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
SAE Technical Papers |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803046046058676224 |