The effect of retained austenite stability on the formability of third generation advanced high strength steel
This study aims to evaluate the effect of retained austenite (RA) stability on the performance of third-generation advanced high-strength steel (AHSS). The analysis focuses on two quenching and partitioning (Q&P) steels with a minimum tensile strength designation above 1.0 GPa. Additionally, two...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | MATEC Web of Conferences |
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| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2025/02/matecconf_iddrg2025_02037.pdf |
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| author | Yim Gihak Shin Heegwon Kim Hyejin Jung Seungpill Jeon Jinhwa Lee Dongyul |
| author_facet | Yim Gihak Shin Heegwon Kim Hyejin Jung Seungpill Jeon Jinhwa Lee Dongyul |
| author_sort | Yim Gihak |
| collection | DOAJ |
| description | This study aims to evaluate the effect of retained austenite (RA) stability on the performance of third-generation advanced high-strength steel (AHSS). The analysis focuses on two quenching and partitioning (Q&P) steels with a minimum tensile strength designation above 1.0 GPa. Additionally, two conventional dual-phase (DP) steels with tensile strengths of 780 MPa and 1.0 GPa were included for comparison. The retained austenite stability of the Q&P steels was first assessed through tensile testing by observing changes in the retained austenite volume fraction. Subsequently, its impact on formability was investigated by comparing formability parameters, including instantaneous n-values, hole expansion ratio (HER), limit drawing ratio (LDR), bending angle, and forming limit curve (FLC). Furthermore, a hydrogen-induced cracking (HIC) test was conducted on drawn cups to explore the relationship between retained austenite stability and resistance to hydrogen embrittlement. The results demonstrate that the stability of retained austenite plays a significant role in determining the overall formability and performance of third generation AHSS. |
| format | Article |
| id | doaj-art-52e5abf245514d6e886e27d5d65a2dab |
| institution | Kabale University |
| issn | 2261-236X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj-art-52e5abf245514d6e886e27d5d65a2dab2025-08-20T03:53:51ZengEDP SciencesMATEC Web of Conferences2261-236X2025-01-014080203710.1051/matecconf/202540802037matecconf_iddrg2025_02037The effect of retained austenite stability on the formability of third generation advanced high strength steelYim Gihak0Shin Heegwon1Kim Hyejin2Jung Seungpill3Jeon Jinhwa4Lee Dongyul5Application Engineering Group, Hyundai SteelApplication Engineering Group, Hyundai SteelApplication Engineering Group, Hyundai SteelApplication Engineering Group, Hyundai SteelApplication Engineering Group, Hyundai SteelApplication Engineering Group, Hyundai SteelThis study aims to evaluate the effect of retained austenite (RA) stability on the performance of third-generation advanced high-strength steel (AHSS). The analysis focuses on two quenching and partitioning (Q&P) steels with a minimum tensile strength designation above 1.0 GPa. Additionally, two conventional dual-phase (DP) steels with tensile strengths of 780 MPa and 1.0 GPa were included for comparison. The retained austenite stability of the Q&P steels was first assessed through tensile testing by observing changes in the retained austenite volume fraction. Subsequently, its impact on formability was investigated by comparing formability parameters, including instantaneous n-values, hole expansion ratio (HER), limit drawing ratio (LDR), bending angle, and forming limit curve (FLC). Furthermore, a hydrogen-induced cracking (HIC) test was conducted on drawn cups to explore the relationship between retained austenite stability and resistance to hydrogen embrittlement. The results demonstrate that the stability of retained austenite plays a significant role in determining the overall formability and performance of third generation AHSS.https://www.matec-conferences.org/articles/matecconf/pdf/2025/02/matecconf_iddrg2025_02037.pdfretained austenitethird generation steelformabilityhydrogen embrittlement |
| spellingShingle | Yim Gihak Shin Heegwon Kim Hyejin Jung Seungpill Jeon Jinhwa Lee Dongyul The effect of retained austenite stability on the formability of third generation advanced high strength steel MATEC Web of Conferences retained austenite third generation steel formability hydrogen embrittlement |
| title | The effect of retained austenite stability on the formability of third generation advanced high strength steel |
| title_full | The effect of retained austenite stability on the formability of third generation advanced high strength steel |
| title_fullStr | The effect of retained austenite stability on the formability of third generation advanced high strength steel |
| title_full_unstemmed | The effect of retained austenite stability on the formability of third generation advanced high strength steel |
| title_short | The effect of retained austenite stability on the formability of third generation advanced high strength steel |
| title_sort | effect of retained austenite stability on the formability of third generation advanced high strength steel |
| topic | retained austenite third generation steel formability hydrogen embrittlement |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2025/02/matecconf_iddrg2025_02037.pdf |
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