Numerical evaluation of the weldability of the low alloy ferritic steels T/P23 and T/P24

A model based on transport equations was numerically implemented by the finite volume method (FVM) in a computational code in order to simulate the influence of the heat input, base metal thickness and preheating temperature on the thermal evolution and the cooling rate during the welding of the low...

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Main Authors: Carlos Roberto Xavier, Horácio Guimarães Delgado Junio, José Adilson de Castro
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2011-03-01
Series:Materials Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000100014
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author Carlos Roberto Xavier
Horácio Guimarães Delgado Junio
José Adilson de Castro
author_facet Carlos Roberto Xavier
Horácio Guimarães Delgado Junio
José Adilson de Castro
author_sort Carlos Roberto Xavier
collection DOAJ
description A model based on transport equations was numerically implemented by the finite volume method (FVM) in a computational code in order to simulate the influence of the heat input, base metal thickness and preheating temperature on the thermal evolution and the cooling rate during the welding of the low alloy ferritic steels T/P23 and T/P24. As a consequence, it was possible to evaluate qualitatively the microstructure at the heat affected zone (HAZ) of these steels when a single weld bead was deposited on their surface and calculate the maximum hardness reached at this region. Goldakfs double-ellipsoid heat source model for power density distribution was utilized in order to obtain a good estimate of the cooling rate and dimensions of the fusion zone (FZ). The results are discussed in light of previous work and good agreement between experimental and simulated results was verified.
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spelling doaj.art-4caf0de999cc49e7b8e3494c13c980a72022-12-21T19:02:56ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392011-03-011417390Numerical evaluation of the weldability of the low alloy ferritic steels T/P23 and T/P24Carlos Roberto XavierHorácio Guimarães Delgado JunioJosé Adilson de CastroA model based on transport equations was numerically implemented by the finite volume method (FVM) in a computational code in order to simulate the influence of the heat input, base metal thickness and preheating temperature on the thermal evolution and the cooling rate during the welding of the low alloy ferritic steels T/P23 and T/P24. As a consequence, it was possible to evaluate qualitatively the microstructure at the heat affected zone (HAZ) of these steels when a single weld bead was deposited on their surface and calculate the maximum hardness reached at this region. Goldakfs double-ellipsoid heat source model for power density distribution was utilized in order to obtain a good estimate of the cooling rate and dimensions of the fusion zone (FZ). The results are discussed in light of previous work and good agreement between experimental and simulated results was verified.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000100014numerical evaluationT/P23 and T/P24 steelsweldabilityhardness
spellingShingle Carlos Roberto Xavier
Horácio Guimarães Delgado Junio
José Adilson de Castro
Numerical evaluation of the weldability of the low alloy ferritic steels T/P23 and T/P24
Materials Research
numerical evaluation
T/P23 and T/P24 steels
weldability
hardness
title Numerical evaluation of the weldability of the low alloy ferritic steels T/P23 and T/P24
title_full Numerical evaluation of the weldability of the low alloy ferritic steels T/P23 and T/P24
title_fullStr Numerical evaluation of the weldability of the low alloy ferritic steels T/P23 and T/P24
title_full_unstemmed Numerical evaluation of the weldability of the low alloy ferritic steels T/P23 and T/P24
title_short Numerical evaluation of the weldability of the low alloy ferritic steels T/P23 and T/P24
title_sort numerical evaluation of the weldability of the low alloy ferritic steels t p23 and t p24
topic numerical evaluation
T/P23 and T/P24 steels
weldability
hardness
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000100014
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AT horacioguimaraesdelgadojunio numericalevaluationoftheweldabilityofthelowalloyferriticsteelstp23andtp24
AT joseadilsondecastro numericalevaluationoftheweldabilityofthelowalloyferriticsteelstp23andtp24