含铁铜基陶瓷复合材料高温氧化行为与耐磨性研究

doi:10.11902/1005.4537.2019.227

中国腐蚀与防护学报

2020, Vol. 40

Issue (2): 191-198 DOI: 10.11902/1005.4537.2019.227

研究报告

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含铁铜基陶瓷复合材料高温氧化行为与耐磨性研究

郑艳欣¹, 刘颖¹, 宋青松¹, 郑峰¹, 贾玉川², 韩培德¹(

)

1 太原理工大学材料科学与工程学院太原 030024
2 洛阳鹏飞耐磨材料股份有限公司洛阳 471200

High-temperature Oxidation Behavior and Wear Resistance of Copper-based Composites with Reinforcers of C, ZrSiO₄ and Fe

ZHENG Yanxin¹, LIU Ying¹, SONG Qingsong¹, ZHENG Feng¹, JIA Yuchuan², HAN Peide¹(

)

1 College of Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China
2 Luoyang Pengfei Abrasion Resistant Material Company Limited, Luoyang 471200, China

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摘要:

在25，250，350和450 ℃高温摩擦磨损实验条件下，对两种不同铁含量的Cu基摩擦材料进行高温氧化行为及耐磨性研究。结果表明：Fe在Cu基体中的尺寸、分布影响Cu基摩擦材料的高温抗氧化性和耐磨性，随实验温度升高，Cu基摩擦材料试样中Cu氧化产物为Cu₂O，Fe从Fe₂O₃转变为Fe₃O₄，金属氧化膜厚度逐渐增加；Fe以小尺寸、均匀分布于Cu基体时，更有利于提高Cu基体整体的抗氧化性能，在350~450 ℃可形成稳定的氧化膜降低粘着磨损，展现出了较好的高温耐磨性能；而Fe以较大尺寸分布在Cu基体中时，则使Cu基体出现氧化不均匀现象，不利于高温耐磨性能的提高。

关键词 ： Cu基摩擦材料, Fe, 高温氧化, 高温耐磨性

Abstract：

Composites of Cu matrix with reinforcers of graphite, ZrSiO₄ and Fe were prepared via powder metallurgy, then their high temperature oxidation behavior and wear performance were assessed in air at 25, 250, 350 and 450 ℃. The results show that the size and distribution of Fe particles in Cu-matrix affect the oxidation resistance and wear resistance of Cu-based friction materials. With the increasing temperature, the formed oxidation product of Cu on the surface of copper-based friction materials is Cu₂O, but that of Fe changed from Fe₂O₃ to Fe₃O₄, and the thickness of oxide scale increased gradually. When Fe particles of small size distribute uniformly in the Cu-matrix, it is more conducive to improving the overall oxidation resistance of the Cu-matrix, in the range of 350~450 ℃, the formation of stable oxide scale was beneficial to reduce the adhesive wear, demonstrating better high-temperature wear resistance. However, when the Fe particles in the Cu-matrix were of large size, the phenomenon of heterogeneous oxidation can be observed, which is not conducive to improving the high-temperature wear resistance.

Key words： Cu-based friction material Fe high-temperature oxidation high-temperature wear resistance

收稿日期: 2019-04-26

ZTFLH:

TF124

基金资助:国家自然科学基金(U1860204);国家自然科学基金(51871159);河南省科技开放合作项目(182106000014)

通讯作者: 韩培德 E-mail: hanpeide@126.com

Corresponding author: HAN Peide E-mail: hanpeide@126.com

作者简介: 郑艳欣，女，1993年生，硕士生

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引用本文:

郑艳欣, 刘颖, 宋青松, 郑峰, 贾玉川, 韩培德. 含铁铜基陶瓷复合材料高温氧化行为与耐磨性研究[J]. 中国腐蚀与防护学报, 2020, 40(2): 191-198.
Yanxin ZHENG, Ying LIU, Qingsong SONG, Feng ZHENG, Yuchuan JIA, Peide HAN. High-temperature Oxidation Behavior and Wear Resistance of Copper-based Composites with Reinforcers of C, ZrSiO₄ and Fe. Journal of Chinese Society for Corrosion and protection, 2020, 40(2): 191-198.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2019.227 或 https://www.jcscp.org/CN/Y2020/V40/I2/191

表1 Cu基摩擦材料成分 (mass fraction / %)

图1 试样1和试样2的光学显微组织及组成相EDS分析

图2 不同温度下试样1和试样2未磨损处微观形貌

图3 不同温度下试样1和试样2的SEM形貌及EDS元素分析

图4 高温磨擦前、后试样表面XRD谱

图5 试样1和2的高温氧化示意图

图6 不同温度下试样的摩擦系数和磨损率

图7 试样1和试样2不同温度下试样磨损表面

图8 试样1和试样2不同温度下试样磨损表面三维图

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