Effects of Partial Replacement of Si by Al on Cold Formability in Two Groups of Low-Carbon Third-Generation Advanced High-Strength Steel Sheet: A Review
Partial replacement of Si by Al improves the coatability (or galvanizing property) of Si-Mn advanced high-strength steel (AHSS) sheets. In this paper, the effects of the partial replacement on the microstructure, tensile property, and cold formability are reported for the low-carbon third-generation...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/12/2069 |
| _version_ | 1827637754467450880 |
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| author | Koh-ichi Sugimoto |
| author_facet | Koh-ichi Sugimoto |
| author_sort | Koh-ichi Sugimoto |
| collection | DOAJ |
| description | Partial replacement of Si by Al improves the coatability (or galvanizing property) of Si-Mn advanced high-strength steel (AHSS) sheets. In this paper, the effects of the partial replacement on the microstructure, tensile property, and cold formability are reported for the low-carbon third-generation AHSS sheets, which are classified into two groups, “Group I” and “Group II”. The partial replacement by 1.2 mass% Al increases the carbon concentration or mechanical stability of retained austenite and decreases its volume fraction in the AHSSs, compared to Al-free AHSSs. The partial replacement deteriorates the tensile ductility and stretch formability in the AHSSs with a tensile strength above 1.2 GPa. On the other hand, it achieves the same excellent stretch-flangeability as Al-free AHSSs. A complex addition of Al and Nb/Mo further enhances the stretch-flangeability. The cold formabilities are related to the heat treatment condition and microstructural and tensile properties, and the stress state. |
| first_indexed | 2024-03-09T16:06:17Z |
| format | Article |
| id | doaj.art-86cf1b182eb34c26ab9b8f15b5e32a1f |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T16:06:17Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-86cf1b182eb34c26ab9b8f15b5e32a1f2023-11-24T16:40:20ZengMDPI AGMetals2075-47012022-12-011212206910.3390/met12122069Effects of Partial Replacement of Si by Al on Cold Formability in Two Groups of Low-Carbon Third-Generation Advanced High-Strength Steel Sheet: A ReviewKoh-ichi Sugimoto0School of Science and Technology, Shinshu University, Nagano 380-8553, JapanPartial replacement of Si by Al improves the coatability (or galvanizing property) of Si-Mn advanced high-strength steel (AHSS) sheets. In this paper, the effects of the partial replacement on the microstructure, tensile property, and cold formability are reported for the low-carbon third-generation AHSS sheets, which are classified into two groups, “Group I” and “Group II”. The partial replacement by 1.2 mass% Al increases the carbon concentration or mechanical stability of retained austenite and decreases its volume fraction in the AHSSs, compared to Al-free AHSSs. The partial replacement deteriorates the tensile ductility and stretch formability in the AHSSs with a tensile strength above 1.2 GPa. On the other hand, it achieves the same excellent stretch-flangeability as Al-free AHSSs. A complex addition of Al and Nb/Mo further enhances the stretch-flangeability. The cold formabilities are related to the heat treatment condition and microstructural and tensile properties, and the stress state.https://www.mdpi.com/2075-4701/12/12/2069third-generation advanced high-strength steel (AHSS)Al additionmicrostructureretained austenitetensile propertycold formability |
| spellingShingle | Koh-ichi Sugimoto Effects of Partial Replacement of Si by Al on Cold Formability in Two Groups of Low-Carbon Third-Generation Advanced High-Strength Steel Sheet: A Review Metals third-generation advanced high-strength steel (AHSS) Al addition microstructure retained austenite tensile property cold formability |
| title | Effects of Partial Replacement of Si by Al on Cold Formability in Two Groups of Low-Carbon Third-Generation Advanced High-Strength Steel Sheet: A Review |
| title_full | Effects of Partial Replacement of Si by Al on Cold Formability in Two Groups of Low-Carbon Third-Generation Advanced High-Strength Steel Sheet: A Review |
| title_fullStr | Effects of Partial Replacement of Si by Al on Cold Formability in Two Groups of Low-Carbon Third-Generation Advanced High-Strength Steel Sheet: A Review |
| title_full_unstemmed | Effects of Partial Replacement of Si by Al on Cold Formability in Two Groups of Low-Carbon Third-Generation Advanced High-Strength Steel Sheet: A Review |
| title_short | Effects of Partial Replacement of Si by Al on Cold Formability in Two Groups of Low-Carbon Third-Generation Advanced High-Strength Steel Sheet: A Review |
| title_sort | effects of partial replacement of si by al on cold formability in two groups of low carbon third generation advanced high strength steel sheet a review |
| topic | third-generation advanced high-strength steel (AHSS) Al addition microstructure retained austenite tensile property cold formability |
| url | https://www.mdpi.com/2075-4701/12/12/2069 |
| work_keys_str_mv | AT kohichisugimoto effectsofpartialreplacementofsibyaloncoldformabilityintwogroupsoflowcarbonthirdgenerationadvancedhighstrengthsteelsheetareview |