STUDY ON DRY TRIBOLOGICAL PROPERTIES OF WEAR RESISTANT FeCrB⁃TiC COMPOSITES

ZHAO HuCheng; CUI GongJun; GUO He; CUI HaoTian; HAN WenPeng

doi:10.16579/j.issn.1001.9669.2024.05.019

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STUDY ON DRY TRIBOLOGICAL PROPERTIES OF WEAR RESISTANT FeCrB⁃TiC COMPOSITES

Weld · Casting · Forge · Thermal Material | 更新时间：2025-04-27

- STUDY ON DRY TRIBOLOGICAL PROPERTIES OF WEAR RESISTANT FeCrB⁃TiC COMPOSITES
- Journal of Mechanical Strength Vol. 46, Issue 5, Pages: 1168-1174(2024)
- 作者机构：
  
  1. 太原理工大学机械与运载工程学院
  2. 山西省矿山流体控制工程实验室
  3. 矿山流体控制国家地方联合工程实验室
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2024.05.019
  CLC： TH117
- Published：15 October 2024
- 稿件说明：
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ZHAO HuCheng, CUI GongJun, GUO He, et al. STUDY ON DRY TRIBOLOGICAL PROPERTIES OF WEAR RESISTANT FeCrB⁃TiC COMPOSITES[J]. Journal of mechanical strength , 2024, 46(5): 1168-1174.
DOI：

ZHAO HuCheng, CUI GongJun, GUO He, et al. STUDY ON DRY TRIBOLOGICAL PROPERTIES OF WEAR RESISTANT FeCrB⁃TiC COMPOSITES[J]. Journal of mechanical strength , 2024, 46(5): 1168-1174. DOI： 10.16579/j.issn.1001.9669.2024.05.019.

摘要

采用粉末冶金技术设计制备了质量分数4%TiC强化的FeCrB基抗磨复合材料

与GCr15钢球配副进行往复式干摩擦实验

系统研究滑动速度和载荷对复合材料的干摩擦磨损性能的影响。使用X射线衍射(X-Ray Diffraction

XRD)、扫描电子显微镜(Scanning Electron Microscope

SEM)等技术分析了复合材料的物相成分和微观形貌。实验结果表明:复合材料物相为α-Fe、FeCr、TiC、Cr2B和Fe2B相。TiC的加入显著提高了材料的硬度

密度略有下降。随着滑动速度和载荷的增大

摩擦因数总体下降而磨损率显著增加。TiC对铁基体的钉扎作用抑制了材料的剥落和变形

材料的抗磨性能显著提高。综合分析

TiC能有效提升FeCrB合金的干摩擦学性能

其磨损机制主要是剥层磨损和磨粒磨损。

Abstract

The 4%weight percentage TiC reinforced FeCrB based anti⁃wear composite was designed and prepared by powder metallurgy technology.The effects of sliding speed and load on the dry friction and wear properties of the composite were systematically studied by reciprocating dry friction experiments with GCr15 steel ball pairs.The X⁃ray diffraction(XRD)

scanning electron microscope(SEM)and other techniques were used to analyze the phase composition and micro morphology of the composite.The experimental results show that the phase of the composite isα⁃Fe

FeCr

TiC

Cr2B and Fe2B.The addition of TiC significantly increases the hardness of the material and slightly decreases the density.With the increase of sliding speed and load

the friction coefficient decreases generally and the wear rate increases significantly.The pinning strengthening effect of TiC on the Fe matrix composite inhibits the spalling and deformation of the material

and the wear resistance of the material is significantly improved.Through comprehensive analysis

TiC can effectively improve the dry tribological properties of FeCrB alloy

and its wear mechanism is mainly delamination wear and abrasive wear.

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