Visualization of slag corrosion process of corundum based refractories

doi:10.3969/j.issn.1001-1935.2021.05.008

Refractories ›› 2021, Vol. 55 ›› Issue (5): 410-413.DOI: 10.3969/j.issn.1001-1935.2021.05.008

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Visualization of slag corrosion process of corundum based refractories

Li Shenghao(), Huang Ao(), Gu Huazhi, Yang Pengpeng, Fu Lyuping, Yang Shuang

The State Key Laboratory of Refractory and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China

Received:2021-07-30 Online:2021-10-15 Published:2021-10-25
Contact: Huang Ao

刚玉质耐火材料渣蚀过程的可视化研究

李昇昊(), 黄奥(), 顾华志, 杨鹏鹏, 付绿平, 杨爽

武汉科技大学省部共建耐火材料与冶金国家重点实验室湖北武汉 430081

通讯作者: 黄奥
作者简介:李昇昊:男,1996年生,博士研究生。E-mail: lishenghao-wust@163.com
基金资助:
国家自然科学基金资助项目(U1860205、U1908227);湖北省中央引导地方科技发展专项资助项目(2019ZYYD076)

Abstract

Abstract:

The evolution of the corrosion peak at the three-phase interface of acorundum based crucible was recorded using a self-made high-temperature visualization system,revealing the evolution law of the volcano-like corrosion peak morphology.The strain distribution nephogram of the side surface and the full field average strain-time curve of the block corundum specimen during slag corrosion were obtained by the high-temperature digital image correlation technology.The results show that the strain distribution nephogram of the side surface is highly correlated with the distribution regions of the corrosion and penetration caused by the slag in the refractories.The dynamic strain distribution nephogram can be used to reflect the dynamic development process of slag corrosion and penetration of refractories.

Key words: refractories, slag corrosion, high-temperature visualization, non-contact measurement

摘要：

采用自制的高温可视化系统,对刚玉质坩埚三相界面处侵蚀峰演变过程进行了动态记录,揭示了“类火山”侵蚀峰形貌的演变规律;结合高温数字图像相关技术,获得了块状刚玉试样上表面受熔渣侵蚀过程中其侧面的应变分布云图、全场平均应变-时间曲线。结果表明:块状刚玉试样上表面受熔渣侵蚀过程中,其侧面的应变分布云图与耐火材料内部熔渣侵蚀、渗透区域分布存在较大的相关性,因此可以采用动态应变分布云图来反映耐火材料受熔渣侵蚀、渗透状况的动态发展过程。

关键词: 耐火材料, 熔渣侵蚀, 高温可视化, 非接触式检测

CLC Number:

Li Shenghao, Huang Ao, Gu Huazhi, Yang Pengpeng, Fu Lyuping, Yang Shuang. Visualization of slag corrosion process of corundum based refractories[J]. Refractories, 2021, 55(5): 410-413.

李昇昊, 黄奥, 顾华志, 杨鹏鹏, 付绿平, 杨爽. 刚玉质耐火材料渣蚀过程的可视化研究[J]. 耐火材料, 2021, 55(5): 410-413.

Figures/Tables 6

Fig.1 Diagram of corundum based crucible

Fig.2 Evolution of corrosion peak morphology at the three-phase interface

Fig.3 Strain distribution nephogram at different times

Fig.4 Full field average strain-time curve from 0 s to 9 000 s

Fig.5 Photo of block specimens after corrosion test

Fig.6 Strain distribution nephogram after soaking at 1 600 ℃ for 2 h

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Visualization of slag corrosion process of corundum based refractories

刚玉质耐火材料渣蚀过程的可视化研究

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