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首页> 外文期刊>ISIJ international >Valorization of Coal Gangue and Vanadium-titanium Slag into Glass-ceramic Coating for Oxidation Resistance of 60Si2Mn Spring Steel at High Temperature
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Valorization of Coal Gangue and Vanadium-titanium Slag into Glass-ceramic Coating for Oxidation Resistance of 60Si2Mn Spring Steel at High Temperature

机译：煤矸石和钒渣中玻璃陶瓷涂层耐氧化铝涂层高温耐氧化抗性

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摘要

Glass coatings and ceramic coatings are usually used to protect the slabs from oxidation during the reheating process of 60Si2Mn spring steel before hot rolling. In view of the characteristic that the primary glass is able to transform from amorphous phase to ceramic phase during the reheating process, glass-ceramics are potential to become a new type of coating materials with both the advantages of the glass coatings and ceramic coatings. In this paper, glass-ceramic was firstly prepared with solid wastes including vanadium-titanium slag (VTS) and coal gangue (CG). With the increasing content of VTS, the main crystalline phase of the glass-ceramic transformed from cordierite to spinel and hercynite, and the crystallization activation energy (E_k) increased. New glass-ceramic coatings were prepared with the as-prepared primary glass powders with different proportion of VTS. When the proportion of VTS within the primary glass powders was 6% by weight, the glass-ceramic coatings possessed the best anti-oxidation effect of 74.4% at 1 100°C for 2 h. The protective mechanism of glass-ceramic coatings was discussed with the results of SEM and EDS. Before crystallization, the amorphous phase within primary glass contributed to good sintering performance, and thus the coatings formed a dense film, slowing down the oxidation caused by the direct contact between oxygen and the slabs. With the increasing temperature, amorphous phase gradually transformed to ceramic phase, preventing the oxidation resulted from the diffusion of Fe ions.
机译：玻璃涂层和陶瓷涂层通常用于在热轧前60si2mn弹簧钢的再加热过程中保护板坯免受氧化。鉴于初级玻璃能够在再加热过程中从非晶相转变为陶瓷相的特征，玻璃陶瓷具有玻璃涂层和陶瓷涂层的优点。本文首先用固体废物制备玻璃陶瓷，包括钒 - 钛渣（VTS）和煤矸石（CG）。随着VT的含量增加，从堇青石转化为尖晶石和肝癌的玻璃陶瓷的主要结晶相，以及结晶活化能量（E_K）增加。用不同比例的VTS制备的制备的原发性玻璃粉制备新的玻璃陶瓷涂料。当初级玻璃粉末内的VTS比例为6重量％时，玻璃陶瓷涂层在1 100℃下具有74.4％的最佳抗氧化效果2小时。玻璃涂料的保护机理与SEM和EDS的结果讨论。在结晶之前，初级玻璃内的非晶相有助于良好的烧结性能，因此涂层形成了致密的膜，减慢了由氧气和板之间的直接接触引起的氧化。随着温度的升高，无定形相逐渐转化为陶瓷相，防止氧化由Fe离子的扩散引起。

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  • 来源
    《ISIJ international》 |2021年第1期|326-334|共9页
  • 作者

    Bo YU; Yingchao DU; Lianqi WEI; Xiaomeng ZHANG; Gaohong ZUO; Yanhua WANG; Shufeng YE;

  • 作者单位

    State Key Laboratory of Multiphase Complex System Institute of Process Engineering Chinese Academy of Sciences PO Box 353 Beijing 100190 China University of Chinese Academy of Sciences No. 19(A) Yuquan Road Beijing 100049 China;

    State Key Laboratory of Multiphase Complex System Institute of Process Engineering Chinese Academy of Sciences PO Box 353 Beijing 100190 China University of Chinese Academy of Sciences No. 19(A) Yuquan Road Beijing 100049 China;

    State Key Laboratory of Multiphase Complex System Institute of Process Engineering Chinese Academy of Sciences PO Box 353 Beijing 100190 China;

    State Key Laboratory of Multiphase Complex System Institute of Process Engineering Chinese Academy of Sciences PO Box 353 Beijing 100190 China;

    State Key Laboratory of Multiphase Complex System Institute of Process Engineering Chinese Academy of Sciences PO Box 353 Beijing 100190 China Dalian Polytechnic University No. 1 Light Industry Court Ganjingzi District Dalian 116034 China;

    State Key Laboratory of Multiphase Complex System Institute of Process Engineering Chinese Academy of Sciences PO Box 353 Beijing 100190 China University of Chinese Academy of Sciences No. 19(A) Yuquan Road Beijing 100049 China;

    State Key Laboratory of Multiphase Complex System Institute of Process Engineering Chinese Academy of Sciences PO Box 353 Beijing 100190 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    coal gangue; vanadium-titanium slag; glass-ceramic; coatings;

    机译：煤矸石;钒钛渣;玻璃陶瓷;涂料;
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