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界面反应对Cu35Ni25Co25Cr15多主元合金/金刚石复合材料磨损性能的影响

高阳 肖海波 刘咏 张伟

高阳, 肖海波, 刘咏, 等. 界面反应对Cu35Ni25Co25Cr15多主元合金/金刚石复合材料磨损性能的影响[J]. 复合材料学报, 2023, 40(2): 1105-1117. doi: 10.13801/j.cnki.fhclxb.20220331.004
引用本文: 高阳, 肖海波, 刘咏, 等. 界面反应对Cu35Ni25Co25Cr15多主元合金/金刚石复合材料磨损性能的影响[J]. 复合材料学报, 2023, 40(2): 1105-1117. doi: 10.13801/j.cnki.fhclxb.20220331.004
GAO Yang, XIAO Haibo, LIU Yong, et al. Effect of interfacial reaction on wear properties of Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites[J]. Acta Materiae Compositae Sinica, 2023, 40(2): 1105-1117. doi: 10.13801/j.cnki.fhclxb.20220331.004
Citation: GAO Yang, XIAO Haibo, LIU Yong, et al. Effect of interfacial reaction on wear properties of Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites[J]. Acta Materiae Compositae Sinica, 2023, 40(2): 1105-1117. doi: 10.13801/j.cnki.fhclxb.20220331.004

界面反应对Cu35Ni25Co25Cr15多主元合金/金刚石复合材料磨损性能的影响

doi: 10.13801/j.cnki.fhclxb.20220331.004
基金项目: 国家重点研发计划重点专项(2021YFB3701800);国家自然科学基金(U20A20236)
详细信息
    通讯作者:

    刘咏,博士,教授,博士生导师,研究方向为硬质合金、高熵合金、金刚石超硬材料等设计与制备 E-mail: yonliu@csu.edu.cn

    张伟,博士,副研究员,博士生导师,研究方向为金刚石超硬材料设计与制备 E-mail: waycsu@csu.edu.cn

  • 中图分类号: TB331

Effect of interfacial reaction on wear properties of Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites

Funds: National Key R&D Program of China (2021YFB3701800); National Natural Science Foundation of China (U20A20236)
  • 摘要: 金刚石超硬磨具在高端芯片加工、3C陶瓷等领域发挥的作用日益重要,粘结相与金刚石的界面结合情况在很大程度上影响了金刚石超硬复合材料的力学和磨损性能。为了研究粘结相和金刚石的界面结合情况,采用放电等离子烧结方法制备了Cu35Ni25Co25Cr15多主元合金/金刚石复合材料,通过热力学计算和实验研究了粘结相和金刚石颗粒的界面反应。结果表明:烧结过程中,金属粘结相中的Cr元素与金刚石在界面处发生了化学反应,生成Cr—C化合物,且Cr—C化合物层的厚度随着烧结温度的升高而增加。当烧结温度达到950℃时,Cr—C化合物反应层均匀连续,厚度大约为1.1 μm。复合材料粘结相与金刚石颗粒的粘结系数随着Cr—C化合物层厚度的增加而增大。摩擦磨损测试表明,在900℃和950℃烧结的样品表面,粘结相在摩擦过程中首先被磨除,金刚石随后露出,而Cr—C界面反应层有助于保持对金刚石颗粒的把持能力,提高复合材料的磨削性能。因此,适当的界面反应可提升金刚石复合材料的服役性能。

     

  • 图  1  (a) 不同温度烧结的Cu35Ni25Co25Cr15多主元合金/金刚石复合材料XRD图谱;(b) 金属与金刚石反应的吉布斯自由能∆G与温度的关系

    Figure  1.  (a) XRD patterns of Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites sintered at different temperatures; (b) Gibbs free energy ∆G of reaction between metals and diamond as a function of temperature

    图  2  不同温度烧结的Cu35Ni25Co25Cr15多主元合金/金刚石复合材料的粘结相与金刚石颗粒的界面观察及EDS线扫结果: (a) 850℃;(b) 900℃;(c) 950℃;(d) 不同复合材料界面处Cr元素含量变化

    Figure  2.  Interfacial microstructure between binder phase and diamond particles of Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites sintered at different temperatures and EDS line scanning results: (a) 850℃; (b) 900℃; (c) 950℃; (d) Cr content at the interface of different samples

    图  3  不同温度烧结的Cu35Ni25Co25Cr15多主元合金/金刚石复合材料的粘接相与金刚石颗粒界面处的场发射电子探针(EPMA)图像:((a1)~(g1)) 850℃;((a2)~(g2)) 900℃;((a3)~(g3)) 950℃

    Ave—Average

    Figure  3.  Field emission electron probe (EPMA) images at the interface between binder phase and diamond particles of Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites sintered at different temperatures: ((a1)-(g1)) 850℃; ((a2)-(g2)) 900℃; ((a3)-(g3)) 950℃

    图  4  不同温度烧结的Cu35Ni25Co25Cr15多主元合金/金刚石复合材料中金刚石颗粒的形貌:(a)未烧结;(b) 850℃;(c) 900℃;(d) 950℃

    Figure  4.  Morphology of diamond particles in Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites sintered at different temperatures: (a) Unsintered; (b) 850℃; (c) 900℃; (d) 950℃

    图  5  不同温度烧结的Cu35Ni25Co25Cr15多主元合金/金刚石复合材料中金刚石颗粒表面的Raman光谱:(a) 未烧结;(b) 850℃;(c) 900℃;(d) 950℃

    Figure  5.  Raman spectra on the surface of diamond particles in Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites sintered at different temperatures: (a) Unsintered; (b) 850℃; (c) 900℃; (d) 950℃

    图  6  不同温度烧结的Cu35Ni25Co25Cr15多主元合金/金刚石复合材料在不同载荷下的摩擦系数((a), (b))和磨损率((c), (d))

    Figure  6.  Friction coefficient ((a), (b)) and wear rate ((c), (d)) of Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites sintered at different temperatures under different loads

    图  7  不同温度烧结的Cu35Ni25Co25Cr15多主元合金/金刚石复合材料经过不同载荷摩擦后的表面磨损形貌:((a)~(c)) 20 N;((d)~(f)) 40 N

    Figure  7.  Wear morphology of Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites sintered at different temperatures after friction under different loads: ((a)-(c)) 20 N; ((d)-(f)) 40 N

    图  8  950℃烧结的Cu35Ni25Co25Cr15多主元合金/金刚石复合材料经过40 N载荷摩擦后表面的磨损形貌(a)及元素分布图((b)~(j))

    Figure  8.  Wear morphology (a) and elements distribution ((b)-(j)) of Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites sintered at 950℃ after friction under 40 N load

    图  9  不同温度烧结的Cu35Ni25Co25Cr15多主元合金/金刚石复合材料经过不同载荷摩擦后的表面三维轮廓形貌:((a)~(c)) 20 N;((d)~(f)) 40 N

    Figure  9.  3D-profile micrographs of Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites sintered at different temperatures after friction under different loads: ((a)-(c)) 20 N; ((d)-(f)) 40 N

    表  1  Cu35Ni25Co25Cr15多主元合金粘结相的名义成分

    Table  1.   Nominal composition of Cu35Ni25Co25Cr15 multi-principal components alloy binder phase at%

    CuNiCoCr
    35252515
    下载: 导出CSV

    表  2  样品名称缩写

    Table  2.   Sample name abbreviation

    Sample Sintering temperature/℃
    SPS@850℃ 850
    SPS@900℃ 900
    SPS@950℃ 950
    Note: SPS—Spark plasma sintering.
    下载: 导出CSV

    表  3  不同温度烧结的Cu35Ni25Co25Cr15多主元合金/金刚石复合材料的密度、硬度、横向断裂强度(TRS)及粘结系数

    Table  3.   Density, hardness, transverse rupture strength (TRS) and cohesion coefficient of Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites sintered at different temperatures

    CompositeDensity/(g·cm−3)Hardness of composites
    (HB)
    Hardness of binder phase
    (HV)
    TRS of binder phase/MPaTRS of composites/MPaCohesion coefficient
    SPS@850℃7.8378±0.0028161.2±5.5202.23±4.141068.86 868.790.187
    SPS@900℃8.1232±0.0074205.2±4.7202.55±3.281486.081016.480.316
    SPS@950℃8.0187±0.0081208.7±6.2205.16±2.371898.941046.840.449
    下载: 导出CSV

    表  4  不同温度烧结的Cu35Ni25Co25Cr15多主元合金/金刚石复合材料的磨耗比

    Table  4.   Abrasion ratios of Cu35Ni25Co25Cr15 multi-principal components alloy/diamond composites sintered at different temperatures

    CompositeAbrasion ratio
    SPS@850℃ 766.7±57.7
    SPS@900℃1033.3±208.1
    SPS@950℃1766.7±251.6
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-02-11
  • 修回日期:  2022-03-16
  • 录用日期:  2022-03-23
  • 网络出版日期:  2022-04-02
  • 刊出日期:  2023-02-15

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