Effect of Chromium on Microstructure and Mechanical Properties of Hot-Dip Galvanized Dual-Phase (DP980) Steel
Generally, the addition of Chromium (Cr) into the dual-phase (DP) steels can suppress bainitic transformation. In this work, the continuous hot-dip galvanization of DP980 steel is thermally simulated with various Cr contents of 0/0.3/0.6 wt.%, and the effect of Cr on bainitic transformation and prop...
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MDPI AG
2023-08-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/8/1287 |
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| author | Xuefei Chen Jiawei Liang Dapeng Yang Zhiping Hu Xin Xu Xingli Gu Guangming Xie |
| author_facet | Xuefei Chen Jiawei Liang Dapeng Yang Zhiping Hu Xin Xu Xingli Gu Guangming Xie |
| author_sort | Xuefei Chen |
| collection | DOAJ |
| description | Generally, the addition of Chromium (Cr) into the dual-phase (DP) steels can suppress bainitic transformation. In this work, the continuous hot-dip galvanization of DP980 steel is thermally simulated with various Cr contents of 0/0.3/0.6 wt.%, and the effect of Cr on bainitic transformation and properties of steels is studied. The results indicate that the bainitic transformation is obviously inhibited. The fraction of bainite decreases with the increasing Cr content. The incubation time is prolonged in the 0.6Cr steel with a slower bainitic transformation rate. Compared to that of 0 and 0.3Cr steels, the 0.6Cr steel exhibits a high tensile strength of 1033 MPa and uniform elongation of 9.1% due to the rapid strain-hardening rate. As a result, the mechanical properties of 0.6Cr steel satisfy the requirements of hot-dip galvanized DP980 steel. |
| first_indexed | 2024-03-11T00:01:34Z |
| format | Article |
| id | doaj.art-b0e93442916847bc883d5523a527717e |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-11T00:01:34Z |
| publishDate | 2023-08-01 |
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| series | Crystals |
| spelling | doaj.art-b0e93442916847bc883d5523a527717e2023-11-19T00:46:03ZengMDPI AGCrystals2073-43522023-08-01138128710.3390/cryst13081287Effect of Chromium on Microstructure and Mechanical Properties of Hot-Dip Galvanized Dual-Phase (DP980) SteelXuefei Chen0Jiawei Liang1Dapeng Yang2Zhiping Hu3Xin Xu4Xingli Gu5Guangming Xie6State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaTechnology Center of Angang Steel Company Limited, 63 Wuyi Road, Anshan 114009, ChinaTechnology Center of Angang Steel Company Limited, 63 Wuyi Road, Anshan 114009, ChinaTechnology Center of Angang Steel Company Limited, 63 Wuyi Road, Anshan 114009, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaGenerally, the addition of Chromium (Cr) into the dual-phase (DP) steels can suppress bainitic transformation. In this work, the continuous hot-dip galvanization of DP980 steel is thermally simulated with various Cr contents of 0/0.3/0.6 wt.%, and the effect of Cr on bainitic transformation and properties of steels is studied. The results indicate that the bainitic transformation is obviously inhibited. The fraction of bainite decreases with the increasing Cr content. The incubation time is prolonged in the 0.6Cr steel with a slower bainitic transformation rate. Compared to that of 0 and 0.3Cr steels, the 0.6Cr steel exhibits a high tensile strength of 1033 MPa and uniform elongation of 9.1% due to the rapid strain-hardening rate. As a result, the mechanical properties of 0.6Cr steel satisfy the requirements of hot-dip galvanized DP980 steel.https://www.mdpi.com/2073-4352/13/8/1287dual-phase steelCrbainitic transformationhot-dip galvanization |
| spellingShingle | Xuefei Chen Jiawei Liang Dapeng Yang Zhiping Hu Xin Xu Xingli Gu Guangming Xie Effect of Chromium on Microstructure and Mechanical Properties of Hot-Dip Galvanized Dual-Phase (DP980) Steel Crystals dual-phase steel Cr bainitic transformation hot-dip galvanization |
| title | Effect of Chromium on Microstructure and Mechanical Properties of Hot-Dip Galvanized Dual-Phase (DP980) Steel |
| title_full | Effect of Chromium on Microstructure and Mechanical Properties of Hot-Dip Galvanized Dual-Phase (DP980) Steel |
| title_fullStr | Effect of Chromium on Microstructure and Mechanical Properties of Hot-Dip Galvanized Dual-Phase (DP980) Steel |
| title_full_unstemmed | Effect of Chromium on Microstructure and Mechanical Properties of Hot-Dip Galvanized Dual-Phase (DP980) Steel |
| title_short | Effect of Chromium on Microstructure and Mechanical Properties of Hot-Dip Galvanized Dual-Phase (DP980) Steel |
| title_sort | effect of chromium on microstructure and mechanical properties of hot dip galvanized dual phase dp980 steel |
| topic | dual-phase steel Cr bainitic transformation hot-dip galvanization |
| url | https://www.mdpi.com/2073-4352/13/8/1287 |
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