Residual Stress, Microstructure and Hardness of Thin-Walled Low-Carbon Steel Pipes Welded Manually
The aim of this work is to evaluate the welding residual stress profile in ASTM A106 Gr. B steel pipes with 4" diameter and to correlate this profile with the microstructure and hardness of the joint. The results showed that the residual stresses are more uniform for a lower welding heat input....
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2016-09-01
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| Series: | Materials Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000601215&tlng=en |
| _version_ | 1828131730389729280 |
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| author | Cleiton Carvalho Silva Joaquim Teixeira de Assis Sergey Philippov Jesualdo Pereira Farias |
| author_facet | Cleiton Carvalho Silva Joaquim Teixeira de Assis Sergey Philippov Jesualdo Pereira Farias |
| author_sort | Cleiton Carvalho Silva |
| collection | DOAJ |
| description | The aim of this work is to evaluate the welding residual stress profile in ASTM A106 Gr. B steel pipes with 4" diameter and to correlate this profile with the microstructure and hardness of the joint. The results showed that the residual stresses are more uniform for a lower welding heat input. Higher welding heat input causes not only a non-uniformity of the stress profile but also promotes the maximum stress as high as the yield strength. The microstructure was composed of ferrite, perlite and possibly bainite; the presence of martensite was not verified. The hardness results indicated that none of the welding parameters used produced levels of hardness greater than 249 HV. Such a result is of fundamental importance because it suggests that low hardness does not necessarily mean low residual stress levels. |
| first_indexed | 2024-04-11T16:52:42Z |
| format | Article |
| id | doaj.art-e99722fb587c425baae1baa0ff339e8a |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-04-11T16:52:42Z |
| publishDate | 2016-09-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-e99722fb587c425baae1baa0ff339e8a2022-12-22T04:13:23ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392016-09-011961215122510.1590/1980-5373-mr-2016-0217Residual Stress, Microstructure and Hardness of Thin-Walled Low-Carbon Steel Pipes Welded ManuallyCleiton Carvalho SilvaJoaquim Teixeira de AssisSergey PhilippovJesualdo Pereira FariasThe aim of this work is to evaluate the welding residual stress profile in ASTM A106 Gr. B steel pipes with 4" diameter and to correlate this profile with the microstructure and hardness of the joint. The results showed that the residual stresses are more uniform for a lower welding heat input. Higher welding heat input causes not only a non-uniformity of the stress profile but also promotes the maximum stress as high as the yield strength. The microstructure was composed of ferrite, perlite and possibly bainite; the presence of martensite was not verified. The hardness results indicated that none of the welding parameters used produced levels of hardness greater than 249 HV. Such a result is of fundamental importance because it suggests that low hardness does not necessarily mean low residual stress levels.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000601215&tlng=enWeldingResidual stressMicrostructureHardnessSteel pipes |
| spellingShingle | Cleiton Carvalho Silva Joaquim Teixeira de Assis Sergey Philippov Jesualdo Pereira Farias Residual Stress, Microstructure and Hardness of Thin-Walled Low-Carbon Steel Pipes Welded Manually Materials Research Welding Residual stress Microstructure Hardness Steel pipes |
| title | Residual Stress, Microstructure and Hardness of Thin-Walled Low-Carbon Steel Pipes Welded Manually |
| title_full | Residual Stress, Microstructure and Hardness of Thin-Walled Low-Carbon Steel Pipes Welded Manually |
| title_fullStr | Residual Stress, Microstructure and Hardness of Thin-Walled Low-Carbon Steel Pipes Welded Manually |
| title_full_unstemmed | Residual Stress, Microstructure and Hardness of Thin-Walled Low-Carbon Steel Pipes Welded Manually |
| title_short | Residual Stress, Microstructure and Hardness of Thin-Walled Low-Carbon Steel Pipes Welded Manually |
| title_sort | residual stress microstructure and hardness of thin walled low carbon steel pipes welded manually |
| topic | Welding Residual stress Microstructure Hardness Steel pipes |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000601215&tlng=en |
| work_keys_str_mv | AT cleitoncarvalhosilva residualstressmicrostructureandhardnessofthinwalledlowcarbonsteelpipesweldedmanually AT joaquimteixeiradeassis residualstressmicrostructureandhardnessofthinwalledlowcarbonsteelpipesweldedmanually AT sergeyphilippov residualstressmicrostructureandhardnessofthinwalledlowcarbonsteelpipesweldedmanually AT jesualdopereirafarias residualstressmicrostructureandhardnessofthinwalledlowcarbonsteelpipesweldedmanually |