Effect of bending temperatures on the microstructure and springback of a TRIP steel sheet
Transformation-induced plasticity (TRIP) steel possesses high strength and formability, enabling the use of a thinner gauge material and allowing for the fabrication of complex shapes. In this research, we measured the effect of bending temperatures on the microstructure and air-bending springback a...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2020-10-01
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| Series: | Defence Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214914719310384 |
| _version_ | 1818611214892138496 |
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| author | Natthasak Pornputsiri Kannachai Kanlayasiri |
| author_facet | Natthasak Pornputsiri Kannachai Kanlayasiri |
| author_sort | Natthasak Pornputsiri |
| collection | DOAJ |
| description | Transformation-induced plasticity (TRIP) steel possesses high strength and formability, enabling the use of a thinner gauge material and allowing for the fabrication of complex shapes. In this research, we measured the effect of bending temperatures on the microstructure and air-bending springback angle of TRIP steel at temperatures from 25 to 600 °C. Real-time in situ X-ray diffraction and scanning electron microscopy were used for pre- and postbending analysis. As the prebending temperature increased from 25 °C to 600 °C, the retained austenite (RA) volume fraction decreased, and the RA transformed to bainite at temperatures above 400 °C. The springback angle was positively correlated with the prebending RA volume fraction, with the smallest springback angle achieved at 400 °C. Additionally, the springback angle was positively correlated with the bending angle, because the RA transformation ratio contributed to increased strain hardening. Further microstructure analysis revealed that the RA became elongated in the tension direction as the bending temperatures increased. |
| first_indexed | 2024-12-16T15:26:47Z |
| format | Article |
| id | doaj.art-c9e544d511e44e4e8695064459abdf8e |
| institution | Directory Open Access Journal |
| issn | 2214-9147 |
| language | English |
| last_indexed | 2024-12-16T15:26:47Z |
| publishDate | 2020-10-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Defence Technology |
| spelling | doaj.art-c9e544d511e44e4e8695064459abdf8e2022-12-21T22:26:29ZengKeAi Communications Co., Ltd.Defence Technology2214-91472020-10-01165980987Effect of bending temperatures on the microstructure and springback of a TRIP steel sheetNatthasak Pornputsiri0Kannachai Kanlayasiri1Industrial Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520, ThailandCorresponding author.; Industrial Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520, ThailandTransformation-induced plasticity (TRIP) steel possesses high strength and formability, enabling the use of a thinner gauge material and allowing for the fabrication of complex shapes. In this research, we measured the effect of bending temperatures on the microstructure and air-bending springback angle of TRIP steel at temperatures from 25 to 600 °C. Real-time in situ X-ray diffraction and scanning electron microscopy were used for pre- and postbending analysis. As the prebending temperature increased from 25 °C to 600 °C, the retained austenite (RA) volume fraction decreased, and the RA transformed to bainite at temperatures above 400 °C. The springback angle was positively correlated with the prebending RA volume fraction, with the smallest springback angle achieved at 400 °C. Additionally, the springback angle was positively correlated with the bending angle, because the RA transformation ratio contributed to increased strain hardening. Further microstructure analysis revealed that the RA became elongated in the tension direction as the bending temperatures increased.http://www.sciencedirect.com/science/article/pii/S2214914719310384TRIP steelIn situ X-ray diffractionPhase transformationBending temperatureSpringbackAir-bending test |
| spellingShingle | Natthasak Pornputsiri Kannachai Kanlayasiri Effect of bending temperatures on the microstructure and springback of a TRIP steel sheet Defence Technology TRIP steel In situ X-ray diffraction Phase transformation Bending temperature Springback Air-bending test |
| title | Effect of bending temperatures on the microstructure and springback of a TRIP steel sheet |
| title_full | Effect of bending temperatures on the microstructure and springback of a TRIP steel sheet |
| title_fullStr | Effect of bending temperatures on the microstructure and springback of a TRIP steel sheet |
| title_full_unstemmed | Effect of bending temperatures on the microstructure and springback of a TRIP steel sheet |
| title_short | Effect of bending temperatures on the microstructure and springback of a TRIP steel sheet |
| title_sort | effect of bending temperatures on the microstructure and springback of a trip steel sheet |
| topic | TRIP steel In situ X-ray diffraction Phase transformation Bending temperature Springback Air-bending test |
| url | http://www.sciencedirect.com/science/article/pii/S2214914719310384 |
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