+高级检索
激光熔覆Ni3Al/Cr3C2复合材料耐磨性能研究
作者:
作者单位:

1.河北工业大学 材料学院;2.钢铁研究总院 焊接研究所

作者简介:

通讯作者:

中图分类号:

基金项目:

国家重点研发计划资助(项目号 2017YFB1103300);国际科技合作项目资助(项目号2015DFA50970);河北工业大学联合培养博士研究生项目资助(项目号 2018GN0003)


Study on Wear Resistance of Laser Cladding Ni3Al/Cr3C2 Composites
Author:
Affiliation:

1.School of material science and technology,Hebei University of Technology;2.Central Iron and Steel Research Institute

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    采用激光熔覆技术在304不锈钢基板上制备了Ni3Al合金和Ni3Al/Cr3C2(25wt.%)复合材料耐磨涂层,考察了Ni3Al合金和Ni3Al/Cr3C2熔覆层的显微组织、硬度及耐磨性能。结果表明,Ni3Al/Cr3C2熔覆层显微组织由基体γ"-Ni3Al相和原位自生M7C3(M=Cr,Fe)型碳化物组成,且细小近圆形的M7C3弥散分布在γ"-Ni3Al基体中。与Ni3Al合金熔覆层相比较,Ni3Al/Cr3C2熔覆层显微硬度提高了近2.5倍。650℃时,其磨损量仅为对比材料蠕墨铸铁的28%左右。因此,激光熔覆制备Ni3Al/Cr3C2复合材料熔覆层具有良好的耐磨性能。

    Abstract:

    The wear resistant coatings of Ni3Al alloy and Ni3Al/Cr3C2 composites were prepared on 304 stainless steel substrate by laser cladding technique. The microstructure, hardness and wear resistance of Ni3Al alloy and Ni3Al/Cr3C2 composites were investigated. The results show that the microstructure of the cladding layer of Ni3Al/Cr3C2 consists of matrix γ"-Ni3Al phase and in-situ self-generated M7C3 (M=Cr,Fe) type carbides, and the fine near-circular M7C3 is dispersed in γ"- Ni3Al matrix. Compared with the Ni3Al alloy cladding layer, the micro-hardness of the Ni3Al/Cr3C2 composites cladding layer is increased by 2.5 times, and the weight loss is only 28% of the vermicular graphite cast iron. Therefore, the laser cladding Ni3Al/Cr3C2 composite cladding layer has good wear resistance.

    参考文献
    相似文献
    引证文献
引用本文

陈翠欣,赵向东,赵琳,韩伟,彭云,殷福星,田志凌.激光熔覆Ni3Al/Cr3C2复合材料耐磨性能研究[J].稀有金属材料与工程,2020,49(4):1388~1394.[Chen Cuixin, Zhao Xiangdong, Zhao Lin, Han Wei, Peng Yun, Yin Fuxing, Tian Zhiling. Study on Wear Resistance of Laser Cladding Ni3Al/Cr3C2 Composites[J]. Rare Metal Materials and Engineering,2020,49(4):1388~1394.]
DOI:10.12442/j. issn.1002-185X.20190012

复制
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2019-01-04
  • 最后修改日期:2019-03-20
  • 录用日期:2019-04-10
  • 在线发布日期: 2020-05-07
  • 出版日期: