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Comparison study of slag corrosion resistance of MgO–MgAl_(2)O_(4),MgO–CaO and MgO–C refractories under electromagnetic field 被引量:10
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作者 Xin‑ming Ren Bei‑yue Ma +6 位作者 Shi‑ming Li Hong‑xia Li Guo‑qi Liu Wen‑gang Yang Fan Qian Shi‑xian Zhao Jing‑kun Yu 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2021年第1期38-45,共8页
To illuminate the corrosion behavior of MgO-based refractories under electromagnetic field(EMF),herein,the slag corrosion and penetration resistance of MgO–MgAl_(2)O_(4),MgO–CaO,and MgO–C refractories were investig... To illuminate the corrosion behavior of MgO-based refractories under electromagnetic field(EMF),herein,the slag corrosion and penetration resistance of MgO–MgAl_(2)O_(4),MgO–CaO,and MgO–C refractories were investigated using the rotary immersion slag resistance test at 1873 K for 1 h.The results showed that the order of the good slag resistance of as-tested refractories was MgO–C>MgO–CaO>MgO–MgAl_(2)O_(4).The EMF accelerated the corrosion and penetration of slag to the refractories,which caused the molten slag to be easier into the refractories by natural convection and Marangoni effect.In addition,the MgO–C refractories did not show an overwhelming advantage in slag resistance because EMF impeded the formation of the dense protection layer.Consequently,in view of the present results,the MgO–C refractories are still the most promising slag line material for refining furnace among MgO–MgAl_(2)O_(4),MgO–CaO,and MgO–C refractories. 展开更多
关键词 MgO-based refractory Corrosion Basic slag Electromagnetic field
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Influence of pre-synthesized Al_(2)O_(3)-SiC composite powder from clay on properties of low-carbon MgO-C refractories
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作者 Bei-yue Ma Xin-ming Ren +5 位作者 Zhi Gao Fan Qian Zhao-yang Liu Guo-qi Liu Jing-kun Yu Gao-feng Fu 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2022年第7期1080-1088,共9页
To improve the properties of low-carbonization of MgO–C refractories,the introduction of composite additives is an effective strategy.Al_(2)O_(3)–SiC composite powder was prepared from clay using electromagnetic ind... To improve the properties of low-carbonization of MgO–C refractories,the introduction of composite additives is an effective strategy.Al_(2)O_(3)–SiC composite powder was prepared from clay using electromagnetic induction heating and carbon embedded methods.Further,the Al_(2)O_(3)–SiC composite powder synthesized by electromagnetic induction heating at 600 A was added into low-carbon MgO–C refractories(4 wt.%)to improve their properties.The results showed that when the addition amount of Al_(2)O_(3)–SiC composite powder is within the range of 2.5–5.0 wt.%,the properties of low-carbon MgO–C samples were significantly improved,e.g.,the apparent porosity of 7.58%–8.04%,the bulk density of 2.98–2.99 g cm-3,the cold compressive strength of 55.72–57.93 MPa,the residual strength after three air quenching at 1100°C of 74.86%–78.04%,and the decarburized layer depth after oxidized at 1400°C for 2 h of 14.03–14.87 mm.Consequently,the idea for the rapid synthesis of Al_(2)O_(3)–SiC composite powder provides an alternative low-carbon MgO–C refractories performance optimization strategy. 展开更多
关键词 MgO–C refractory Electromagnetic induction heating Al_(2)O_(3)–SiC composite powder Oxidation
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