In-situ analysis on morphology,distribution and entrapped inclusions of bubbles in thick slab

LI Xiang-long; LI Bao-kuan; LIU Zhong-qiu; NIU Ran; LIU Qiang; REN Neng; XU Guo-dong; RUAN Xiao-ming

doi:10.13374/j.issn2095-9389.2018.s1.026

Volume 40 Issue S1

Dec. 2018

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Article Navigation > Chinese Journal of Engineering > 2018 > 40(S1): 180-184

LI Xiang-long, LI Bao-kuan, LIU Zhong-qiu, NIU Ran, LIU Qiang, REN Neng, XU Guo-dong, RUAN Xiao-ming. In-situ analysis on morphology,distribution and entrapped inclusions of bubbles in thick slab[J]. Chinese Journal of Engineering, 2018, 40(S1): 180-184. doi: 10.13374/j.issn2095-9389.2018.s1.026

Citation:

LI Xiang-long, LI Bao-kuan, LIU Zhong-qiu, NIU Ran, LIU Qiang, REN Neng, XU Guo-dong, RUAN Xiao-ming. In-situ analysis on morphology,distribution and entrapped inclusions of bubbles in thick slab[J]. Chinese Journal of Engineering, 2018, 40(S1): 180-184. doi: 10.13374/j.issn2095-9389.2018.s1.026

Citation:

LI Xiang-long, LI Bao-kuan, LIU Zhong-qiu, NIU Ran, LIU Qiang, REN Neng, XU Guo-dong, RUAN Xiao-ming. In-situ analysis on morphology,distribution and entrapped inclusions of bubbles in thick slab[J]. Chinese Journal of Engineering, 2018, 40(S1): 180-184. doi: 10.13374/j.issn2095-9389.2018.s1.026

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In-situ analysis on morphology,distribution and entrapped inclusions of bubbles in thick slab

doi: 10.13374/j.issn2095-9389.2018.s1.026

1. School of Metallurgy,Northeastern University;
2. Baoshan Iron & Steel Co.,Ltd.

Received Date: 2018-05-08
Available Online: 2023-07-18

Abstract

Abstract

The morphology, distribution, and entrapped inclusions of bubbles in thick slab of X70 pipeline steels were investigated by peeling layer.The results show that the diameters of 94%bubbles in thick slab are less than 200μm;the bubbles and the entrapped inclusions are common in 8 mm depth from the slab surface, but the defects are hardly found as peeling deeper into the middle of slab, only a small number of defects are shown, presenting a random distribution in this area;the main morphology of bubbles existing in slab are single bubbles and twin bubbles, the calabash bubbles and petal bubbles are also found;the inclusions are mainly in four existent forms:oxides, aggregation in clusters, bubbles in clusters, and ash inclusions.
- thick slab,
- bubbles,
- inclusions,
- in-situ analysis

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References(15)

References

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