Nondestructive Microstructural Characterization of Austenitic-Ferritic Stainless Steel Welded Joints by Double Loop Electrochemical Polarization Reactivation Portable Test
Austenitic-ferritic stainless steels are alloys with controlled additions of Cr, Ni, Mo and N which, after a suitable thermomechanical treatment, results in a balanced microstructure with similar proportions of ferrite (δ) and austenite (γ). Thus, it is possible to obtain good combinations of high m...
| 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)
2022-01-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392022000100231&tlng=en |
| _version_ | 1798021577871196160 |
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| author | Brígida Bastos de Almeida Andréia de Souza Martins Cardoso Pedro Soucasaux Pires Garcia Hugo Ribeiro da Igreja Rodrigo Chales Leosdan Figueiredo Noris Juan Manuel Pardal Sérgio Souto Maior Tavares Eduardo Ariel Ponzio |
| author_facet | Brígida Bastos de Almeida Andréia de Souza Martins Cardoso Pedro Soucasaux Pires Garcia Hugo Ribeiro da Igreja Rodrigo Chales Leosdan Figueiredo Noris Juan Manuel Pardal Sérgio Souto Maior Tavares Eduardo Ariel Ponzio |
| author_sort | Brígida Bastos de Almeida |
| collection | DOAJ |
| description | Austenitic-ferritic stainless steels are alloys with controlled additions of Cr, Ni, Mo and N which, after a suitable thermomechanical treatment, results in a balanced microstructure with similar proportions of ferrite (δ) and austenite (γ). Thus, it is possible to obtain good combinations of high mechanical properties and corrosion resistance through microstructural refinement, which also leads to a relatively good Pitting Resistance Equivalent value (PRE) at both phases. However, inadequate heat treatment and/or welding processes might result in the precipitation of deleterious phases, leading to poor mechanical properties and/or corrosion resistance. In this sense, the use of non-destructive microstructural characterization techniques becomes a valuable resource to access such alterations. Therefore, this work evaluates the precipitation of deleterious phase’s in welded thermal aged joints by portable Double Loop Electrochemical Polarization Reactivation (DL-EPR) taking into account a preliminary metallographic replica characterization. The results show that the proposed portable method can detect even a small percentage of deleterious phases, in addition to having a strong potential to be a non-destructive microstructural characterization technique. |
| first_indexed | 2024-04-11T17:15:50Z |
| format | Article |
| id | doaj.art-6b965bc008e14a629ae09f02a2740d35 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-04-11T17:15:50Z |
| publishDate | 2022-01-01 |
| 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-6b965bc008e14a629ae09f02a2740d352022-12-22T04:12:38ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392022-01-012510.1590/1980-5373-mr-2021-0283Nondestructive Microstructural Characterization of Austenitic-Ferritic Stainless Steel Welded Joints by Double Loop Electrochemical Polarization Reactivation Portable TestBrígida Bastos de Almeidahttps://orcid.org/0000-0002-7872-1970Andréia de Souza Martins CardosoPedro Soucasaux Pires GarciaHugo Ribeiro da IgrejaRodrigo ChalesLeosdan Figueiredo NorisJuan Manuel PardalSérgio Souto Maior Tavareshttps://orcid.org/0000-0003-1698-8634Eduardo Ariel PonzioAustenitic-ferritic stainless steels are alloys with controlled additions of Cr, Ni, Mo and N which, after a suitable thermomechanical treatment, results in a balanced microstructure with similar proportions of ferrite (δ) and austenite (γ). Thus, it is possible to obtain good combinations of high mechanical properties and corrosion resistance through microstructural refinement, which also leads to a relatively good Pitting Resistance Equivalent value (PRE) at both phases. However, inadequate heat treatment and/or welding processes might result in the precipitation of deleterious phases, leading to poor mechanical properties and/or corrosion resistance. In this sense, the use of non-destructive microstructural characterization techniques becomes a valuable resource to access such alterations. Therefore, this work evaluates the precipitation of deleterious phase’s in welded thermal aged joints by portable Double Loop Electrochemical Polarization Reactivation (DL-EPR) taking into account a preliminary metallographic replica characterization. The results show that the proposed portable method can detect even a small percentage of deleterious phases, in addition to having a strong potential to be a non-destructive microstructural characterization technique.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392022000100231&tlng=enAustenitic-ferritic stainless steelWeldingNon-Destructive TestingMetallographic replicaDL-EPR |
| spellingShingle | Brígida Bastos de Almeida Andréia de Souza Martins Cardoso Pedro Soucasaux Pires Garcia Hugo Ribeiro da Igreja Rodrigo Chales Leosdan Figueiredo Noris Juan Manuel Pardal Sérgio Souto Maior Tavares Eduardo Ariel Ponzio Nondestructive Microstructural Characterization of Austenitic-Ferritic Stainless Steel Welded Joints by Double Loop Electrochemical Polarization Reactivation Portable Test Materials Research Austenitic-ferritic stainless steel Welding Non-Destructive Testing Metallographic replica DL-EPR |
| title | Nondestructive Microstructural Characterization of Austenitic-Ferritic Stainless Steel Welded Joints by Double Loop Electrochemical Polarization Reactivation Portable Test |
| title_full | Nondestructive Microstructural Characterization of Austenitic-Ferritic Stainless Steel Welded Joints by Double Loop Electrochemical Polarization Reactivation Portable Test |
| title_fullStr | Nondestructive Microstructural Characterization of Austenitic-Ferritic Stainless Steel Welded Joints by Double Loop Electrochemical Polarization Reactivation Portable Test |
| title_full_unstemmed | Nondestructive Microstructural Characterization of Austenitic-Ferritic Stainless Steel Welded Joints by Double Loop Electrochemical Polarization Reactivation Portable Test |
| title_short | Nondestructive Microstructural Characterization of Austenitic-Ferritic Stainless Steel Welded Joints by Double Loop Electrochemical Polarization Reactivation Portable Test |
| title_sort | nondestructive microstructural characterization of austenitic ferritic stainless steel welded joints by double loop electrochemical polarization reactivation portable test |
| topic | Austenitic-ferritic stainless steel Welding Non-Destructive Testing Metallographic replica DL-EPR |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392022000100231&tlng=en |
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