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首页> 外文期刊>ISIJ international >Microstructure Evolution and Mechanical Properties Improvement in Magnetic-controlled Electroslag Remelted Bearing Steel
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Microstructure Evolution and Mechanical Properties Improvement in Magnetic-controlled Electroslag Remelted Bearing Steel

机译：磁控电子熔渣轴承钢中的微观结构演化与机械性能改进

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摘要

The transverse static magnetic field (TSMF) was introduced into the electroslag remelting (ESR) process to produce GCr15 steel ingots and the microstructure, non-metallic inclusions, chemical composition and mechanical properties of the ingots were analyzed to investigate the effect of TSMF during the ESR process. The transverse section of the ingots indicated that the application of a 130 mT static magnetic field resulted in a refined dendritic structure. The coverage ratio of the homogeneous crystallites area in the center of the transverse section increased to 52%. The metallic solid-liquid interface with different magnetic flux density (MFD) was recorded during ESR process. The depth of the metallic molten pool was 44.2 mm without the TSMF. When a 130 mT TSMF was applied, the molten pool became noticeably shallower (14.2 mm). And the oxide inclusions count in the scan area of 5.117 mm2 decreased to 239 from 1212. When the TSMF implemented, the tensile, friction and wear and Rockwell hardness properties of ingots showed a significant improvement. These results showed that the application of TSMF during the ESR process of GCr15 steel not only refine the dendritic structure, but also improve the efficiency of inclusion removal and mechanical properties.
机译：将横向静态磁场（TSMF）引入电渣重熔（ESR）工艺中，以产生GCR15钢锭，并分析了锭料的微观结构，非金属夹杂物，化学成分和机械性能，以研究台积电期间的效果ESR流程。铸锭的横截面表明，施加130mt静态磁场导致精制树突结构。横截面中心的均匀微晶区域的覆盖率增加到52％。在ESR过程中记录具有不同磁通密度（MFD）的金属固液界面。金属熔池的深度为44.2毫米，没有台积电。当施加130吨TSMF时，熔池变得明显浅（14.2毫米）。并且扫描面积为5.117mm2的氧化物夹杂物计数降至1212的239.当TSMF实施时，铸锭的拉伸，摩擦和磨损和罗克韦尔硬度特性显示出显着的改善。这些结果表明，在GCR15钢的ESR过程中，在ESR过程中的应用不仅优化树突结构，还可以提高包涵体的效率和机械性能。

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  • 来源
    《ISIJ international》 |2020年第11期|2462-2470|共9页
  • 作者

    Qiang LI; Zhibin XIA; Yifeng GUO; Zhe SHEN; Tianxiang ZHENG; Yunbo ZHONG;

  • 作者单位

    School of Materials Science and Engineering State Key Laboratory of Advanced Special Steel Shanghai Key Laboratory of Advanced Ferrometallurgy Shanghai University 333 Nanchen Road Shanghai 200444 PR China;

    School of Materials Science and Engineering State Key Laboratory of Advanced Special Steel Shanghai Key Laboratory of Advanced Ferrometallurgy Shanghai University 333 Nanchen Road Shanghai 200444 PR China;

    School of Materials Science and Engineering State Key Laboratory of Advanced Special Steel Shanghai Key Laboratory of Advanced Ferrometallurgy Shanghai University 333 Nanchen Road Shanghai 200444 PR China;

    School of Materials Science and Engineering State Key Laboratory of Advanced Special Steel Shanghai Key Laboratory of Advanced Ferrometallurgy Shanghai University 333 Nanchen Road Shanghai 200444 PR China;

    School of Materials Science and Engineering State Key Laboratory of Advanced Special Steel Shanghai Key Laboratory of Advanced Ferrometallurgy Shanghai University 333 Nanchen Road Shanghai 200444 PR China;

    School of Materials Science and Engineering State Key Laboratory of Advanced Special Steel Shanghai Key Laboratory of Advanced Ferrometallurgy Shanghai University 333 Nanchen Road Shanghai 200444 PR 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

    magnetic-controlled ESR; transverse static magnetic field; microstructure; solid-liquid interface; mechanical properties; GCr15 steel;

    机译：磁控ESR;横向静态磁场;微观结构;固液界面;机械性能;GCR15钢铁;

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