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无金属粘结剂WC硬质合金增强增韧的研究进展与展望

邹芹 李爽 李艳国 王明智 赵玉成

邹芹, 李爽, 李艳国, 等. 无金属粘结剂WC硬质合金增强增韧的研究进展与展望[J]. 复合材料学报, 2020, 37(10): 2376-2385. doi: 10.13801/j.cnki.fhclxb.20200701.001
引用本文: 邹芹, 李爽, 李艳国, 等. 无金属粘结剂WC硬质合金增强增韧的研究进展与展望[J]. 复合材料学报, 2020, 37(10): 2376-2385. doi: 10.13801/j.cnki.fhclxb.20200701.001
ZOU Qin, LI Shuang, LI Yanguo, et al. Research progress and prospect of strengthening and toughening WC cemented carbide without metal binder[J]. Acta Materiae Compositae Sinica, 2020, 37(10): 2376-2385. doi: 10.13801/j.cnki.fhclxb.20200701.001
Citation: ZOU Qin, LI Shuang, LI Yanguo, et al. Research progress and prospect of strengthening and toughening WC cemented carbide without metal binder[J]. Acta Materiae Compositae Sinica, 2020, 37(10): 2376-2385. doi: 10.13801/j.cnki.fhclxb.20200701.001

无金属粘结剂WC硬质合金增强增韧的研究进展与展望

doi: 10.13801/j.cnki.fhclxb.20200701.001
基金项目: 丹凤朝阳人才支持计划(丹人才办[2019]3号);新型硬质合金材料的研究(2018042)
详细信息
    通讯作者:

    李艳国,博士,副研究员,研究方向为陶瓷及其复合材料  E-mail:lyg@ysu.edu.cn

  • 中图分类号: TB331

Research progress and prospect of strengthening and toughening WC cemented carbide without metal binder

  • 摘要: 无金属粘结剂WC硬质合金(Binderless tungsten carbide, BTC)硬度高,具有良好的耐磨性、耐腐蚀性,被广泛应用于刀具、耐磨零件等领域,成为近年来硬质合金领域的研究热点。然而,由于没有添加金属粘结剂,其在烧结过程中易出现晶粒长大,致密化难度加大,对烧结方法烧结工艺的要求较高,韧性难与金属粘结剂WC硬质合金相媲美。因此,一些研究人员通过添加非金属粘结剂及调整烧结工艺等方法抑制晶粒长大、促进其致密化,有效改善了BTC材料的性能。本文对于应用金属氧化物、金属碳化物、碳材料及复合增强增韧来提高BTC性能的研究进行综述,介绍了添加剂的种类、增强增韧机制及可以改善材料性能的烧结方法及烧结工艺。

     

  • 图  1  1 600℃下烧结的Y2O3/WC和La2O3/WC的SEM图像:(a)Y2O3质量分数为0wt%;(b) Y2O3质量分数为1wt%;(c) La2O3质量分数为0wt%;(d) La2O3质量分数为1wt%[31-32]

    Figure  1.  SEM images of Y2O3/WC and La2O3/WC sintered at 1 600℃: (a)Mass fraction of Y2O3 is 0wt%; (b) Mass fraction of Y2O3 is 1wt%; (c)Mass fraction of Cr3C2 is 0wt%; (d) Mass fraction of Cr3C2 is 1wt%[31-32]

    图  2  SiC/WC的维氏硬度:(a)随VC、Cr3C2含量的变化;(b)随Mo2C含量的变化[44,46]

    Figure  2.  Hardness of SiC/WC composites: (a) Changed with content of VC and Cr3C2; (b) Changed with content of Mo2C[44,46]

    图  3  WC-TiC-Al2O3陶瓷的TEM图像(a)、位错形貌((b)、 (c)、 (d))、电子衍射斑点((e)、(f)、(g))以及WC/Al2O3、WC/TiC界面的HRTEM图像((h)、(i))[56]

    Figure  3.  TEM image of WC-TiC-Al2O3 ceramics (a), dislocation morphologies((b), (c), (d)), electron diffraction spots((e), (f), (g)) andHRTEM images of WC/Al2O3 and WC/TiC interface((h), (i)) [56]

    图  4  石墨烯片(GPLs)-Al2O3/WC复合材料的SEM图像:(a)GPLs质量分数为0.1wt%;(b)GPLs质量分数为0.3wt%[68]

    Figure  4.  SEM images of Al2O3-graphene sheets (GPLs)/WC: (a)Mass fraction of GPLs is 0.1wt%; (b)Mass fraction of GPLs is 0.3wt%[68]

    图  5  GPLs的质量分数对GPLs-Al2O3/WC材料性能的影响[68]

    Figure  5.  Influence of the amount of GPLs mass fraction on the material properties of GPLs-Al2O3/WC[68]

    图  6  无金属粘接剂WC硬质合金(BTC)材料的性能分布:(a)不同增强增韧相的BTC材料的性能分布;(b)不同阶段BTC材料的性能分布[10-12,16-23,27-29,31-33,37-46,49-57,63-64,68]

    Figure  6.  Properties distribution of WC binderless tungsten carbide(BTC) materials :(a) Properties distribution of BTC materials with different reinforcement and toughening phases;(b) Performance distribution of BTC materials at different stages[10-12,16-23,27-29, 31-33, 37-46, 49-57, 63-64, 68]

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出版历程
  • 收稿日期:  2020-04-23
  • 录用日期:  2020-06-05
  • 网络出版日期:  2020-07-02
  • 刊出日期:  2020-10-15

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