Microstructure and residual stress analysis of Strenx 700 MC welded joint
High strength low alloy (HSLA) steels are a new generation of plain carbon steels with significantly improved mechanical properties while maintaining good weldability with common commercial techniques. Residual stress and microstructural analysis of welded HSLA Strenx 700 MC was carried out in this...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Sciendo
2020-06-01
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| Series: | Production Engineering Archives |
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| Online Access: | https://doi.org/10.30657/pea.2020.26.09 |
| _version_ | 1818307568474259456 |
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| author | Trško Libor Lago Ján Jambor Michal Nový František Bokůvka Otakar Florková Zuzana |
| author_facet | Trško Libor Lago Ján Jambor Michal Nový František Bokůvka Otakar Florková Zuzana |
| author_sort | Trško Libor |
| collection | DOAJ |
| description | High strength low alloy (HSLA) steels are a new generation of plain carbon steels with significantly improved mechanical properties while maintaining good weldability with common commercial techniques. Residual stress and microstructural analysis of welded HSLA Strenx 700 MC was carried out in this research. Results have shown that the welding process causes significant grain coarsening in the heat affected zone. The microstructural changes are also accompanied with creation of tensile residual stress field in the weld metal and heat affected zone, reaching up-to depth of 4 mm. Tensile residual stresses are well known for acceleration of fatigue crack initiation and together with coarse grains can lead to significant decrease of the fatigue properties of the welded structure. |
| first_indexed | 2024-12-13T07:00:27Z |
| format | Article |
| id | doaj.art-68132ec296664127b110ce52c9decc0e |
| institution | Directory Open Access Journal |
| issn | 2353-7779 |
| language | English |
| last_indexed | 2024-12-13T07:00:27Z |
| publishDate | 2020-06-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Production Engineering Archives |
| spelling | doaj.art-68132ec296664127b110ce52c9decc0e2022-12-21T23:55:56ZengSciendoProduction Engineering Archives2353-77792020-06-01262414410.30657/pea.2020.26.09Microstructure and residual stress analysis of Strenx 700 MC welded jointTrško Libor0Lago Ján1Jambor Michal2Nový František3Bokůvka Otakar4Florková Zuzana5Research centre of the University of Žilina, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovak RepublicLago Nástrojáreň s. r. o., Veľké Rovné 1571, 013 62 Veľké Rovné, Slovak RepublicInstitute of Physics of Materials, Czech Academy of Sciences, Žižkova 513/22, 602 00 Brno, Czech RepublicFaculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovak RepublicFaculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovak RepublicResearch centre of the University of Žilina, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovak RepublicHigh strength low alloy (HSLA) steels are a new generation of plain carbon steels with significantly improved mechanical properties while maintaining good weldability with common commercial techniques. Residual stress and microstructural analysis of welded HSLA Strenx 700 MC was carried out in this research. Results have shown that the welding process causes significant grain coarsening in the heat affected zone. The microstructural changes are also accompanied with creation of tensile residual stress field in the weld metal and heat affected zone, reaching up-to depth of 4 mm. Tensile residual stresses are well known for acceleration of fatigue crack initiation and together with coarse grains can lead to significant decrease of the fatigue properties of the welded structure.https://doi.org/10.30657/pea.2020.26.09residual stresshigh strength steelweldingmicrostructuregrain coarsening |
| spellingShingle | Trško Libor Lago Ján Jambor Michal Nový František Bokůvka Otakar Florková Zuzana Microstructure and residual stress analysis of Strenx 700 MC welded joint Production Engineering Archives residual stress high strength steel welding microstructure grain coarsening |
| title | Microstructure and residual stress analysis of Strenx 700 MC welded joint |
| title_full | Microstructure and residual stress analysis of Strenx 700 MC welded joint |
| title_fullStr | Microstructure and residual stress analysis of Strenx 700 MC welded joint |
| title_full_unstemmed | Microstructure and residual stress analysis of Strenx 700 MC welded joint |
| title_short | Microstructure and residual stress analysis of Strenx 700 MC welded joint |
| title_sort | microstructure and residual stress analysis of strenx 700 mc welded joint |
| topic | residual stress high strength steel welding microstructure grain coarsening |
| url | https://doi.org/10.30657/pea.2020.26.09 |
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