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| Progress on statistical models of evaluating inclusions in clean steels |
| Zheng Wang1, Yue-hui Guan2, Hai-wen Luo1 |
| 1 School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China 2 Jiang Yin Xing Cheng Alloy Material Co., Ltd., Jiangyin 214432, Jiangsu, China |
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Abstract Non-metallic inclusions are critical for the fatigue failure of clean steels in service; especially, the large and hard inclusions are detrimental. Since it is not possible to measure all the inclusions in the large-volume clean steels, statistical models have been developed to evaluate inclusions, aiming at predicting the maximum inclusion size in the large volume from the data of inclusions, which are derived from the limited observations on small-volume specimens. Different statistical models were reviewed together with their supporting theories. In particular, the block maxima and the threshold types of models were discussed through a thorough comparison as they are both widely used and based on the extreme value theory. The predicted results not only are used to distinguish the different cleanliness levels of steels, but also help to estimate fatigue strength. Finally, future research is proposed to focus on tackling the present difficulties encountered by statistical models, including the sufficient credibility of obtained results and the robustness of models for applications.
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| Cite this article: |
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Zheng Wang,Yue-hui Guan,Hai-wen Luo. Progress on statistical models of evaluating inclusions in clean steels[J]. Journal of Iron and Steel Research International, 2022, 29(08): 1153-1163.
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| [1] |
Wei Liu, Shu-feng Yang, Jing-she Li, Feng Wang, Hong-bo Yang. Numerical model of inclusion separation from liquid metal with consideration of dissolution in slag[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2019, 26(11): 1147-1153. |
| [2] |
Qiang WANG,De-jun LI,Xing-an LIU,Xue-bin WANG,Jie DONG,Ji-cheng HE. Effects of Steel Teeming in New Slide Gate System with Electromagnetic Induction[J]. Chinese Journal of Iron and Steel, 2015, 22(1): 30-35. |
| [3] |
M V Venkatesan,N Murugan,B M Prasad,A Manickavasagam. Influence of FCA Welding Process Parameters on Distortion of 409M Stainless Steel for Rail Coach Building[J]. Chinese Journal of Iron and Steel, 2013, 20(1): 71-78. |
| [4] |
LIU Cheng-jun,HUANG Ya-he,JIANG Mao-fa. Effects and Mechanisms of RE on Impact Toughness and Fracture Toughness of Clean Heavy Rail Steel[J]. Chinese Journal of Iron and Steel, 2011, 18(3): 52-58. |
| [5] |
HUANG Qingxue;WANG Jianmei;MA Lifeng;ZHAO Chunjiang. Fatigue Damage Mechanism of Oil Film Bearing Sleeve[J]. Chinese Journal of Iron and Steel, 2007, 14(1): 60-0. |
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2022, Vol. 29 
