Fatigue Properties and Residual Stresses of Laser-Welded Heat-Resistant Pressure Vessel Steel, Verification on Vessel Model
Most power plants use the Rankine cycle, where the heat supplied to water and steam is converted into mechanical work; therefore, most components have to be made of heat-resistant steel. Sufficient mechanical properties must be ensured for welded pipes to meet stringent requirements. Therefore, lase...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/9/1517 |
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| author | Jiří Čapek Jan Kec Karel Trojan Ivo Černý Nikolaj Ganev Kamil Kolařík Stanislav Němeček |
| author_facet | Jiří Čapek Jan Kec Karel Trojan Ivo Černý Nikolaj Ganev Kamil Kolařík Stanislav Němeček |
| author_sort | Jiří Čapek |
| collection | DOAJ |
| description | Most power plants use the Rankine cycle, where the heat supplied to water and steam is converted into mechanical work; therefore, most components have to be made of heat-resistant steel. Sufficient mechanical properties must be ensured for welded pipes to meet stringent requirements. Therefore, laser-welded 5 mm thick heat-resistant pressure vessel steel plates were subjected to various mechanical tests, including high-cycle fatigue tests. The microstructural notches were determined using X-ray diffraction too to determine critical areas that are susceptible to crack initialization and affect the service life. Finally, a functional model of the pressure vessel subsequently verified the results and assumptions. The presented results ensure the transferability of the results to real-life applications and outline the promising application potential of laser welding for producing vessels and pipes from heat-resistant steel in the industry. |
| first_indexed | 2024-03-09T23:10:04Z |
| format | Article |
| id | doaj.art-b8387e0abba14b86a91a98e8baec1d1f |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T23:10:04Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-b8387e0abba14b86a91a98e8baec1d1f2023-11-23T17:47:27ZengMDPI AGMetals2075-47012022-09-01129151710.3390/met12091517Fatigue Properties and Residual Stresses of Laser-Welded Heat-Resistant Pressure Vessel Steel, Verification on Vessel ModelJiří Čapek0Jan Kec1Karel Trojan2Ivo Černý3Nikolaj Ganev4Kamil Kolařík5Stanislav Němeček6Department of Solid State Engineering, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Trojanova 13, 120 00 Prague, Czech RepublicStrength Laboratory, SVÚM a.s., Tovární 2053, 250 88 Celakovice, Czech RepublicDepartment of Solid State Engineering, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Trojanova 13, 120 00 Prague, Czech RepublicStrength Laboratory, SVÚM a.s., Tovární 2053, 250 88 Celakovice, Czech RepublicDepartment of Solid State Engineering, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Trojanova 13, 120 00 Prague, Czech RepublicDepartment of Solid State Engineering, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Trojanova 13, 120 00 Prague, Czech RepublicRAPTECH s.r.o., U Vodárny 473, 330 08 Zruc-Senec, Czech RepublicMost power plants use the Rankine cycle, where the heat supplied to water and steam is converted into mechanical work; therefore, most components have to be made of heat-resistant steel. Sufficient mechanical properties must be ensured for welded pipes to meet stringent requirements. Therefore, laser-welded 5 mm thick heat-resistant pressure vessel steel plates were subjected to various mechanical tests, including high-cycle fatigue tests. The microstructural notches were determined using X-ray diffraction too to determine critical areas that are susceptible to crack initialization and affect the service life. Finally, a functional model of the pressure vessel subsequently verified the results and assumptions. The presented results ensure the transferability of the results to real-life applications and outline the promising application potential of laser welding for producing vessels and pipes from heat-resistant steel in the industry.https://www.mdpi.com/2075-4701/12/9/1517laser weldingheat-resistant pressure vessel steelmicrostructureX-ray diffractionhigh-cycle fatigue tests |
| spellingShingle | Jiří Čapek Jan Kec Karel Trojan Ivo Černý Nikolaj Ganev Kamil Kolařík Stanislav Němeček Fatigue Properties and Residual Stresses of Laser-Welded Heat-Resistant Pressure Vessel Steel, Verification on Vessel Model Metals laser welding heat-resistant pressure vessel steel microstructure X-ray diffraction high-cycle fatigue tests |
| title | Fatigue Properties and Residual Stresses of Laser-Welded Heat-Resistant Pressure Vessel Steel, Verification on Vessel Model |
| title_full | Fatigue Properties and Residual Stresses of Laser-Welded Heat-Resistant Pressure Vessel Steel, Verification on Vessel Model |
| title_fullStr | Fatigue Properties and Residual Stresses of Laser-Welded Heat-Resistant Pressure Vessel Steel, Verification on Vessel Model |
| title_full_unstemmed | Fatigue Properties and Residual Stresses of Laser-Welded Heat-Resistant Pressure Vessel Steel, Verification on Vessel Model |
| title_short | Fatigue Properties and Residual Stresses of Laser-Welded Heat-Resistant Pressure Vessel Steel, Verification on Vessel Model |
| title_sort | fatigue properties and residual stresses of laser welded heat resistant pressure vessel steel verification on vessel model |
| topic | laser welding heat-resistant pressure vessel steel microstructure X-ray diffraction high-cycle fatigue tests |
| url | https://www.mdpi.com/2075-4701/12/9/1517 |
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