Tensile cracking behavior of oxide scale in hot-rolled steel
The microstructure, structure, and cracking behavior of Q235-A strip iron oxide skin were studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), and a universal tensile testing machine. The results show that the composition of the iron oxide mainly consists of Fe<sub>3</...
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| Format: | Article |
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Science Press
2017-10-01
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| Series: | 工程科学学报 |
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| Online Access: | http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2017.10.012 |
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| author | WANG Shang YANG Quan REN Yun-he WANG Xiao-chen SHAN Zhong-de |
| author_facet | WANG Shang YANG Quan REN Yun-he WANG Xiao-chen SHAN Zhong-de |
| author_sort | WANG Shang |
| collection | DOAJ |
| description | The microstructure, structure, and cracking behavior of Q235-A strip iron oxide skin were studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), and a universal tensile testing machine. The results show that the composition of the iron oxide mainly consists of Fe<sub>3</sub>O<sub>4</sub>, Fe<sub>2</sub>O<sub>3</sub>, and Fe, together with small amount of FeO, the oxide layer has the same thickness all over, about 10 μm, the structure is dense, and the matrix is better connected. The tensile experiments show that with increasing strain, the increase in the number of cracks is at first slow, then fast, then slow again. When the strain reaches 0.05%, its iron oxide skin begins to crack; the number of cracks increases with increasing strain in the range 0.08% -0.10%. When the strain exceeds 0.10%, the crack number increases slowly, and when the strain exceeds 0.15%, the number of cracks stops grow. |
| format | Article |
| id | doaj-art-300a57e45cf347389376589c68dfdbea |
| institution | OA Journals |
| issn | 2095-9389 |
| language | zho |
| publishDate | 2017-10-01 |
| publisher | Science Press |
| record_format | Article |
| series | 工程科学学报 |
| spelling | doaj-art-300a57e45cf347389376589c68dfdbea2025-08-20T01:47:52ZzhoScience Press工程科学学报2095-93892017-10-0139101540154510.13374/j.issn2095-9389.2017.10.012Tensile cracking behavior of oxide scale in hot-rolled steelWANG Shang0YANG Quan1REN Yun-he2WANG Xiao-chen3SHAN Zhong-de41) School of Engineering Technology, University of Science and Technology Beijing, Beijing 100083, China1) School of Engineering Technology, University of Science and Technology Beijing, Beijing 100083, China1) School of Engineering Technology, University of Science and Technology Beijing, Beijing 100083, China1) School of Engineering Technology, University of Science and Technology Beijing, Beijing 100083, China2) State Key Laboratory of Advanced Forming Technology and Equipment, China Academy of Machinery Science and Technology, Beijing 100083, ChinaThe microstructure, structure, and cracking behavior of Q235-A strip iron oxide skin were studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), and a universal tensile testing machine. The results show that the composition of the iron oxide mainly consists of Fe<sub>3</sub>O<sub>4</sub>, Fe<sub>2</sub>O<sub>3</sub>, and Fe, together with small amount of FeO, the oxide layer has the same thickness all over, about 10 μm, the structure is dense, and the matrix is better connected. The tensile experiments show that with increasing strain, the increase in the number of cracks is at first slow, then fast, then slow again. When the strain reaches 0.05%, its iron oxide skin begins to crack; the number of cracks increases with increasing strain in the range 0.08% -0.10%. When the strain exceeds 0.10%, the crack number increases slowly, and when the strain exceeds 0.15%, the number of cracks stops grow.http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2017.10.012hot-rolled steeloxide scalecrackstensile cracking |
| spellingShingle | WANG Shang YANG Quan REN Yun-he WANG Xiao-chen SHAN Zhong-de Tensile cracking behavior of oxide scale in hot-rolled steel 工程科学学报 hot-rolled steel oxide scale cracks tensile cracking |
| title | Tensile cracking behavior of oxide scale in hot-rolled steel |
| title_full | Tensile cracking behavior of oxide scale in hot-rolled steel |
| title_fullStr | Tensile cracking behavior of oxide scale in hot-rolled steel |
| title_full_unstemmed | Tensile cracking behavior of oxide scale in hot-rolled steel |
| title_short | Tensile cracking behavior of oxide scale in hot-rolled steel |
| title_sort | tensile cracking behavior of oxide scale in hot rolled steel |
| topic | hot-rolled steel oxide scale cracks tensile cracking |
| url | http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2017.10.012 |
| work_keys_str_mv | AT wangshang tensilecrackingbehaviorofoxidescaleinhotrolledsteel AT yangquan tensilecrackingbehaviorofoxidescaleinhotrolledsteel AT renyunhe tensilecrackingbehaviorofoxidescaleinhotrolledsteel AT wangxiaochen tensilecrackingbehaviorofoxidescaleinhotrolledsteel AT shanzhongde tensilecrackingbehaviorofoxidescaleinhotrolledsteel |