CREEP BEHAVIOR OF TI-6AL-4V WITH MARTENSITIC AND EQUIAXED STRUCTURES AT 600°C

Ti-6Al-4V presents important properties as high specific strength, corrosion and creep resistance and metallurgical stability and it has been used in aerospace and aeronautical industries in some applications that requires high temperatures resistance. For these reasons is important understand Ti-...

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Main Authors: Luciana Aparecida Narciso da Silva Briguent, Flávio Perpétuo Briguente, Danieli Aparecida Pereira Reis, Carlos de Moura Neto, Fabrícia Assis Resende
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia, Materiais e Mineração 2013-12-01
Series:Tecnologia em Metalurgia, Materiais e Mineração
Subjects:
Online Access:http://www.tecnologiammm.com.br/files/v10n4/v10n4a06.pdf
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author Luciana Aparecida Narciso da Silva Briguent
Flávio Perpétuo Briguente
Danieli Aparecida Pereira Reis
Carlos de Moura Neto
Fabrícia Assis Resende
author_facet Luciana Aparecida Narciso da Silva Briguent
Flávio Perpétuo Briguente
Danieli Aparecida Pereira Reis
Carlos de Moura Neto
Fabrícia Assis Resende
author_sort Luciana Aparecida Narciso da Silva Briguent
collection DOAJ
description Ti-6Al-4V presents important properties as high specific strength, corrosion and creep resistance and metallurgical stability and it has been used in aerospace and aeronautical industries in some applications that requires high temperatures resistance. For these reasons is important understand Ti-6Al-4V deformation at high temperatures. A method of increasing the resistance of a material is heat treatments which can modify its microstructure. Aiming the improvement of Ti-6Al-4V creep resistance it was performed a specific heat treatment in this alloy to obtain a martensitic microstructure. The material was heat-treated at 1,050°C for 30 minutes and cooled in water until room temperature. The aim of this work is to evaluate Ti-6Al-4V creep behavior with equiaxed and martensitic microstructure at 600°C and stress conditions of 125 MPa, 250 MPa e 319 MPa at constant load. The alloy with martensitic structure showed higher creep resistance with a longer time in creep and lower steady-state creep rate.
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spelling doaj.art-e02537b08dff4d179ee7430ba7868d3b2023-02-02T03:21:49ZengAssociação Brasileira de Metalurgia, Materiais e MineraçãoTecnologia em Metalurgia, Materiais e Mineração2176-15152176-15232013-12-01104324328http://dx.doi.org/10.4322/tmm.2013.042CREEP BEHAVIOR OF TI-6AL-4V WITH MARTENSITIC AND EQUIAXED STRUCTURES AT 600°CLuciana Aparecida Narciso da Silva Briguent0Flávio Perpétuo Briguente1Danieli Aparecida Pereira Reis2Carlos de Moura Neto 3Fabrícia Assis Resende 4Mestre e doutoranda em Engenharia Mecânica e Aeronáutica, Instituto Tecnológico de Aeronáutica, São José dos Campos, SP, Brasil. Mestre em Engenharia Mecânica, Doutorando em Engenharia Mecânica e Aeronáutica, Instituto Tecnológico de Aeronáutica, São José dos Campos, SP, Brasil. Doutora em Engenharia Aeroespacial, Professora, Universidade Federal de São Paulo – Unifesp, Sócia Titular da ABM, São José dos Campos, SP, Brasil. Professor Associado II, Instituto Tecnológico de Aeronáutica, Sócio Titular da ABM, São José dos Campos, SP, BrasilEngenheira de Materiais, Escola de Engenharia de Lorena, Universidade de São Paulo – USP, Lorena, SP, Brasil.Ti-6Al-4V presents important properties as high specific strength, corrosion and creep resistance and metallurgical stability and it has been used in aerospace and aeronautical industries in some applications that requires high temperatures resistance. For these reasons is important understand Ti-6Al-4V deformation at high temperatures. A method of increasing the resistance of a material is heat treatments which can modify its microstructure. Aiming the improvement of Ti-6Al-4V creep resistance it was performed a specific heat treatment in this alloy to obtain a martensitic microstructure. The material was heat-treated at 1,050°C for 30 minutes and cooled in water until room temperature. The aim of this work is to evaluate Ti-6Al-4V creep behavior with equiaxed and martensitic microstructure at 600°C and stress conditions of 125 MPa, 250 MPa e 319 MPa at constant load. The alloy with martensitic structure showed higher creep resistance with a longer time in creep and lower steady-state creep rate.http://www.tecnologiammm.com.br/files/v10n4/v10n4a06.pdfTi-6Al-4V; Heat treatment; Creep.
spellingShingle Luciana Aparecida Narciso da Silva Briguent
Flávio Perpétuo Briguente
Danieli Aparecida Pereira Reis
Carlos de Moura Neto
Fabrícia Assis Resende
CREEP BEHAVIOR OF TI-6AL-4V WITH MARTENSITIC AND EQUIAXED STRUCTURES AT 600°C
Tecnologia em Metalurgia, Materiais e Mineração
Ti-6Al-4V; Heat treatment; Creep.
title CREEP BEHAVIOR OF TI-6AL-4V WITH MARTENSITIC AND EQUIAXED STRUCTURES AT 600°C
title_full CREEP BEHAVIOR OF TI-6AL-4V WITH MARTENSITIC AND EQUIAXED STRUCTURES AT 600°C
title_fullStr CREEP BEHAVIOR OF TI-6AL-4V WITH MARTENSITIC AND EQUIAXED STRUCTURES AT 600°C
title_full_unstemmed CREEP BEHAVIOR OF TI-6AL-4V WITH MARTENSITIC AND EQUIAXED STRUCTURES AT 600°C
title_short CREEP BEHAVIOR OF TI-6AL-4V WITH MARTENSITIC AND EQUIAXED STRUCTURES AT 600°C
title_sort creep behavior of ti 6al 4v with martensitic and equiaxed structures at 600°c
topic Ti-6Al-4V; Heat treatment; Creep.
url http://www.tecnologiammm.com.br/files/v10n4/v10n4a06.pdf
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