Characterization of magnetically impelled arc butt welded T11 tubes for high pressure applications
Magnetically impelled arc butt (MIAB) welding is a pressure welding process used for joining of pipes and tubes with an external magnetic field affecting arc rotation along the tube circumference. In this work, MIAB welding of low alloy steel (T11) tubes were carried out to study the microstructural...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2015-09-01
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| Series: | Defence Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214914715000367 |
| _version_ | 1831680752824090624 |
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| author | R. Sivasankari V. Balusamy P.R. Venkateswaran G. Buvanashekaran K. Ganesh Kumar |
| author_facet | R. Sivasankari V. Balusamy P.R. Venkateswaran G. Buvanashekaran K. Ganesh Kumar |
| author_sort | R. Sivasankari |
| collection | DOAJ |
| description | Magnetically impelled arc butt (MIAB) welding is a pressure welding process used for joining of pipes and tubes with an external magnetic field affecting arc rotation along the tube circumference. In this work, MIAB welding of low alloy steel (T11) tubes were carried out to study the microstructural changes occurring in thermo-mechanically affected zone (TMAZ). To qualify the process for the welding applications where pressure could be up to 300 bar, the MIAB welds are studied with variations of arc current and arc rotation time. It is found that TMAZ shows higher hardness than that in base metal and displays higher weld tensile strength and ductility due to bainitic transformation. The effect of arc current on the weld interface is also detailed and is found to be defect free at higher values of arc currents. The results reveal that MIAB welded samples exhibits good structural property correlation for high pressure applications with an added benefit of enhanced productivity at lower cost. The study will enable the use of MIAB welding for high pressure applications in power and defence sectors. |
| first_indexed | 2024-12-20T05:44:32Z |
| format | Article |
| id | doaj.art-77841692343647dd89d1107987a978bb |
| institution | Directory Open Access Journal |
| issn | 2214-9147 |
| language | English |
| last_indexed | 2024-12-20T05:44:32Z |
| publishDate | 2015-09-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Defence Technology |
| spelling | doaj.art-77841692343647dd89d1107987a978bb2022-12-21T19:51:21ZengKeAi Communications Co., Ltd.Defence Technology2214-91472015-09-0111324425410.1016/j.dt.2015.03.005Characterization of magnetically impelled arc butt welded T11 tubes for high pressure applicationsR. Sivasankari0V. Balusamy1P.R. Venkateswaran2G. Buvanashekaran3K. Ganesh Kumar4Department of Metallurgical Engineering, PSG College of Engineering, Coimbatore 641004, IndiaDepartment of Metallurgical Engineering, PSG College of Engineering, Coimbatore 641004, IndiaWelding Research Institute, Bharat Heavy Electricals Limited, Tiruchirappalli 620014, IndiaWelding Research Institute, Bharat Heavy Electricals Limited, Tiruchirappalli 620014, IndiaWelding Research Institute, Bharat Heavy Electricals Limited, Tiruchirappalli 620014, IndiaMagnetically impelled arc butt (MIAB) welding is a pressure welding process used for joining of pipes and tubes with an external magnetic field affecting arc rotation along the tube circumference. In this work, MIAB welding of low alloy steel (T11) tubes were carried out to study the microstructural changes occurring in thermo-mechanically affected zone (TMAZ). To qualify the process for the welding applications where pressure could be up to 300 bar, the MIAB welds are studied with variations of arc current and arc rotation time. It is found that TMAZ shows higher hardness than that in base metal and displays higher weld tensile strength and ductility due to bainitic transformation. The effect of arc current on the weld interface is also detailed and is found to be defect free at higher values of arc currents. The results reveal that MIAB welded samples exhibits good structural property correlation for high pressure applications with an added benefit of enhanced productivity at lower cost. The study will enable the use of MIAB welding for high pressure applications in power and defence sectors.http://www.sciencedirect.com/science/article/pii/S2214914715000367High pressure componentTMAZMIAB weldingBainiteAcicular ferrite |
| spellingShingle | R. Sivasankari V. Balusamy P.R. Venkateswaran G. Buvanashekaran K. Ganesh Kumar Characterization of magnetically impelled arc butt welded T11 tubes for high pressure applications Defence Technology High pressure component TMAZ MIAB welding Bainite Acicular ferrite |
| title | Characterization of magnetically impelled arc butt welded T11 tubes for high pressure applications |
| title_full | Characterization of magnetically impelled arc butt welded T11 tubes for high pressure applications |
| title_fullStr | Characterization of magnetically impelled arc butt welded T11 tubes for high pressure applications |
| title_full_unstemmed | Characterization of magnetically impelled arc butt welded T11 tubes for high pressure applications |
| title_short | Characterization of magnetically impelled arc butt welded T11 tubes for high pressure applications |
| title_sort | characterization of magnetically impelled arc butt welded t11 tubes for high pressure applications |
| topic | High pressure component TMAZ MIAB welding Bainite Acicular ferrite |
| url | http://www.sciencedirect.com/science/article/pii/S2214914715000367 |
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