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首页> 外文期刊>RSC Advances >Influence of Mn on the iron-based friction material directly prepared by in situ carbothermic reaction from vanadium-bearing titanomagnetite concentrates
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Influence of Mn on the iron-based friction material directly prepared by in situ carbothermic reaction from vanadium-bearing titanomagnetite concentrates

机译：Mn对直接制备的铁基摩擦材料从含钒钛镁胺浓缩物直接制备的铁基摩擦材料

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摘要

In this work, we prepared an iron-based frictional material from vanadium-bearing titanomagnetite concentrates by in situ carbothermic reaction with improved tribological properties. Effects of Mn content (1-4 wt%) on the microstructure and properties of iron-based friction material were investigated. The microstructure and properties of iron-based friction material with Mn are significantly improved. In particular, the friction coefficient decreases from 0.54 to 0.40-0.49 and the wear rate reduces from 1.899 x 10(-7) cm(3) J(-1) to 0.229 x 10(-7) cm(3) J(-1) - 1.309 x 10(-7) cm(3) J(-1). Appropriate Mn addition (1-3 wt%) contributes efficiently to the sintering densification and increasing laminated pearlites. Comparatively, the density, hardness and wear resistance are improved. The dominant wear mechanism changes from severe abrasive wear to mild abrasive wear and oxidative wear is also enhanced. However, when Mn content increases to 4 wt%, the microstructure, relative density, hardness and wear performance of iron-based friction material are deteriorated. Consequently, the optimal addition of Mn is 3 wt% in the iron-based friction material.
机译：在这项工作中，我们通过在具有改进的摩擦性能原位碳热还原反应制备从钒钛磁铁矿浓缩物的铁基摩擦材料。进行了调查Mn含量（1-4％（重量））上的微观结构和铁基摩擦材料的性能的影响。微观结构和铁基摩擦材料的性能与被锰改善显著。特别是，摩擦系数降低为0.54〜0.40-0.49和磨损率从1.899×10降低（-7）厘米（3）.J（-1），以0.229×10（-7）厘米（3）.J（ - 1） - 1.309×10（-7）厘米（3）.J（-1）。适当的Mn添加（1-3重量％）有效地有助于烧结的致密化和增加珠光体层叠。相比之下，密度，硬度和耐磨损性提高。从严重的磨料磨损的主要磨损机理变化轻微磨粒磨损和氧化磨损也得到了增强。然而，当Mn含量增加至4％（重量），微结构，相对密度，硬度和铁基摩擦材料的磨损性能变差。因此，Mn的最佳添加在铁基摩擦材料3重量％。

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  • 来源
    《RSC Advances》 |2018年第64期|共9页
  • 作者

    Shui Yue; Feng Keqin; Zhang Yanyan; Yan Zidi;

  • 作者单位

    Sichuan Univ Sch Mfg Sci &

    Engn Chengdu 610065 Sichuan Peoples R China;

    Sichuan Univ Sch Mfg Sci &

    Engn Chengdu 610065 Sichuan Peoples R China;

    Sichuan Univ Sch Mfg Sci &

    Engn Chengdu 610065 Sichuan Peoples R China;

    Sichuan Univ Sch Mfg Sci &

    Engn Chengdu 610065 Sichuan Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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