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Issue 64, 2018, Issue in Progress
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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

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Abstract

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 × 10−7 cm3 J−1 to 0.229 × 10−7 cm3 J−1 – 1.309 × 10−7 cm3 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.

Graphical abstract: 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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Publication details

The article was received on 21 Jun 2018, accepted on 16 Oct 2018 and first published on 29 Oct 2018


Article type: Paper
DOI: 10.1039/C8RA05307C
Citation: RSC Adv., 2018,8, 36503-36511
  • Open access: Creative Commons BY-NC license
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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

    Y. Shui, K. Feng, Y. Zhang and Z. Yan, RSC Adv., 2018, 8, 36503
    DOI: 10.1039/C8RA05307C

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