Microstructural Characterization and Corrosion-Resistance Behavior of Dual-Phase Steels Compared to Conventional Rebar
Dual-phase (DP) steels consist of a ferritic matrix dispersed with some percentage of martensite, which gives the material a good combination of strength and ductility, along with the capacity to absorb energy and enhanced corrosion protection properties. The purpose of this work was to study the mi...
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MDPI AG
2020-11-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/10/11/1068 |
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| author | Hany S. Abdo Asiful H. Seikh Biplab Baran Mandal Jabair A. Mohammed Sameh A. Ragab Mohamed S. Abdo |
| author_facet | Hany S. Abdo Asiful H. Seikh Biplab Baran Mandal Jabair A. Mohammed Sameh A. Ragab Mohamed S. Abdo |
| author_sort | Hany S. Abdo |
| collection | DOAJ |
| description | Dual-phase (DP) steels consist of a ferritic matrix dispersed with some percentage of martensite, which gives the material a good combination of strength and ductility, along with the capacity to absorb energy and enhanced corrosion protection properties. The purpose of this work was to study the microstructural and corrosion behavior (mainly pitting and galvanic corrosion) of DP steel compared with that of conventional rebar. To obtain DP steel, low-carbon steels were heat-treated at 950 °C for 1 h and then intercritically annealed at 771 °C for 75 min, followed by quenching in ice-brine water. The corrosion rates of DP steel and standard rebar were then measured in different pore solutions. Macro- and microhardness tests were performed for both steels. It was found that DP steels exhibited a superior corrosion resistance and strength compared to standard rebar. The reported results show that DP steels are a good candidate for concrete reinforcement, especially in aggressive and corrosive environments. |
| first_indexed | 2024-03-10T14:37:54Z |
| format | Article |
| id | doaj.art-65fae48459f74104bf814dba06dbf915 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T14:37:54Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-65fae48459f74104bf814dba06dbf9152023-11-20T22:00:41ZengMDPI AGCrystals2073-43522020-11-011011106810.3390/cryst10111068Microstructural Characterization and Corrosion-Resistance Behavior of Dual-Phase Steels Compared to Conventional RebarHany S. Abdo0Asiful H. Seikh1Biplab Baran Mandal2Jabair A. Mohammed3Sameh A. Ragab4Mohamed S. Abdo5Centre of Excellence for Research in Engineering Materials, King Saud University, Riyadh 11421, Saudi ArabiaCentre of Excellence for Research in Engineering Materials, King Saud University, Riyadh 11421, Saudi ArabiaDepartment of Mechanical Engineering, Jadavpur University, Kolkata 700032, IndiaCentre of Excellence for Research in Engineering Materials, King Saud University, Riyadh 11421, Saudi ArabiaCentre of Excellence for Research in Engineering Materials, King Saud University, Riyadh 11421, Saudi ArabiaBiomedical Engineering Department, Faculty of Engineering, Minia University, Minia 61519, EgyptDual-phase (DP) steels consist of a ferritic matrix dispersed with some percentage of martensite, which gives the material a good combination of strength and ductility, along with the capacity to absorb energy and enhanced corrosion protection properties. The purpose of this work was to study the microstructural and corrosion behavior (mainly pitting and galvanic corrosion) of DP steel compared with that of conventional rebar. To obtain DP steel, low-carbon steels were heat-treated at 950 °C for 1 h and then intercritically annealed at 771 °C for 75 min, followed by quenching in ice-brine water. The corrosion rates of DP steel and standard rebar were then measured in different pore solutions. Macro- and microhardness tests were performed for both steels. It was found that DP steels exhibited a superior corrosion resistance and strength compared to standard rebar. The reported results show that DP steels are a good candidate for concrete reinforcement, especially in aggressive and corrosive environments.https://www.mdpi.com/2073-4352/10/11/1068dual-phase steelrebarannealingcorrosion resistancemicrostructure |
| spellingShingle | Hany S. Abdo Asiful H. Seikh Biplab Baran Mandal Jabair A. Mohammed Sameh A. Ragab Mohamed S. Abdo Microstructural Characterization and Corrosion-Resistance Behavior of Dual-Phase Steels Compared to Conventional Rebar Crystals dual-phase steel rebar annealing corrosion resistance microstructure |
| title | Microstructural Characterization and Corrosion-Resistance Behavior of Dual-Phase Steels Compared to Conventional Rebar |
| title_full | Microstructural Characterization and Corrosion-Resistance Behavior of Dual-Phase Steels Compared to Conventional Rebar |
| title_fullStr | Microstructural Characterization and Corrosion-Resistance Behavior of Dual-Phase Steels Compared to Conventional Rebar |
| title_full_unstemmed | Microstructural Characterization and Corrosion-Resistance Behavior of Dual-Phase Steels Compared to Conventional Rebar |
| title_short | Microstructural Characterization and Corrosion-Resistance Behavior of Dual-Phase Steels Compared to Conventional Rebar |
| title_sort | microstructural characterization and corrosion resistance behavior of dual phase steels compared to conventional rebar |
| topic | dual-phase steel rebar annealing corrosion resistance microstructure |
| url | https://www.mdpi.com/2073-4352/10/11/1068 |
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