|
|
Characteristics and stability of oxide + carbonitride in H13 steel at 1250 °C |
Xiao-lin Sun1, Han-jie Guo2, Jing Guo2, Fei Wang3, Dong Xu1,4, Gao-yang Song1, Shuai Wang1,4 |
1 School of Materials Science and Engineering, Hebei University of Engineering, Handan 056038, Hebei, China
2 School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
3 High Temperature Materials Research Institute, Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China
4 Technology Innovation Center for High Quality Cold Heading Steel of Hebei Province, Hebei University of Engineering, Handan 056038, Hebei, China |
|
|
Abstract The morphology, size, quantity, and composition of complex oxide + carbonitride in H13 steel held at 1250 °C for 5, 10, and 15 h were determined. The results show that the ratio and number of complex carbonitrides with cores in H13 steel are gradually increased when holding at 1250 °C compared with those in the original H13 steel, and the core size increases. There are one or more oxide cores in (Tix,V1-x)(Cy,N1-y), including xCaO∙zAl2O3, xCaO∙yMgO∙zAl2O3, and CaO after holding at 1250 °C, in addition to MgO∙Al2O3 and Al2O3 in the original steel. The equilibrium temperature for (Tix, V1-x)(Cy,N1-y) precipitation at the solidification front and decomposition in the solid state was theoretically analyzed, which was affected by the x value and the product of Ti and N contents in H13 steel. Meanwhile, the composition of (Tix,V1-x)(Cy,N1-y) is influenced by the oxide cores. It is convinced that (Tix,V1-x)(Cy,N1-y) with oxide cores has a higher stability, especially for oxides with a high Al2O3 content. Heat treatment at high temperature facilitates a more reasonable analysis of oxide + carbonitride, and the generation mechanism of oxide + carbonitride was discussed.
|
Received: 14 January 2022
Published: 25 January 2024
|
|
|
|
Cite this article: |
Xiao-lin Sun,Han-jie Guo,Jing Guo, et al. Characteristics and stability of oxide + carbonitride in H13 steel at 1250 °C[J]. Journal of Iron and Steel Research International, 2024, 31(1): 134-142.
|
|
|
|
[1] |
Ren-lin Zhu, Run Huang, An-xun Xu, Bo Li, Yong-gang Zang, Xue Deng, Jing Yang, Miao Li, Xian-ze Long. Research status and development of extraction process of zinc-bearing dust from ironmaking and steelmaking—a critical review[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(7): 1303-1323. |
[2] |
Zi-yu Wang, Dong Han, Zheng-gen Liu, Man-sheng Chu, Yong-jie Zhang, Li-feng Zhang, Ji-wei Bao, Ming-yu Wang. Gas release characteristics during carbonization of iron coke hot briquette and influence of heating rate[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(11): 2163-2172. |
[3] |
Yu-jie Liu, Shen Wang, Jie-bin Qi, Xiao-qiang Yan. Vibrations of tandem cold rolling mill: coupled excitation of rolling force and variable stiffness of fault-free back-up roll bearing[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(09): 1792-1802. |
[4] |
Xiao-hui Fan, Zhi-an Zhou, Shu Wang, Min Gan, Zhi-yun Ji, Xu-ling Chen, Zhi-yuan Tian. Mineralization characteristics of pellets prepared by ultrafine magnetite concentrate: influence on metallurgical property and improving method[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(03): 446-455. |
[5] |
Bin-bin Lyu, Guang Wang, Lian-da Zhao, Hai-bin Zuo, Qing-guo Xue, Jing-song Wang. Effect of atmosphere and basicity on softening–melting behavior of primary slag formation in cohesive zone[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(02): 227-235. |
[6] |
Xin Zhu, Cheng-bin Shi, Shi-jun Wang, Peng Lan, Jing Li. Effect of cerium on microstructure, eutectic carbides and Laves phase in electroslag remelted 15Cr–22Ni–1Nb austenitic heat-resistant steel[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(02): 338-349. |
|
|
|
|