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作者:

Li Yutao (Li Yutao.) | Wang Kaiming (Wang Kaiming.) | Fu Hanguang (Fu Hanguang.) (学者:符寒光) | Guo Xingye (Guo Xingye.) | Lin Jian (Lin Jian.)

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EI Scopus SCIE

摘要:

High-entropy alloy (HEA) coatings of AlCoCrFeNi are being investigated as potential wear-resistance materials due to their excellent hardness and wear resistance. In this work, AlCoCrFeNi-based coatings were reinforced by in-situ TiC particles via laser cladding. The microstructure and wear resistance were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), and wear resistance tests. In addition, the hardness of oxidation TiC particles was analyzed by first principles calculations. The results show that the dominant phase of AlCoCrFeNi-based coatings is BCC phase. In-situ TiC particles present a flower-shaped morphology with Al2O3 core. Based on the calculated hardness, the hardness of TiC decreases with the increase of oxygen atoms in TiC. The hardness and wear resistance are improved considerably with the generation of the in-situ TiC particles. The AlCoCrFeNi-20% TiC coating exhibits the best wear resistance with an average hardness of 684.4 HV0.3, and the main wear mechanism is abrasive wear.

关键词:

In-situ TiC Microstructure Wear Resistance High Entropy Alloy Laser Cladding

作者机构:

  • [ 1 ] [Li Yutao]Beijing Univ Technol, Inst Welding & Surface Technol, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Fu Hanguang]Beijing Univ Technol, Inst Welding & Surface Technol, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Guo Xingye]Beijing Univ Technol, Inst Welding & Surface Technol, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Lin Jian]Beijing Univ Technol, Inst Welding & Surface Technol, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 5 ] [Wang Kaiming]Changsha Univ Sci & Technol, Coll Automobile & Mech Engn, Changsha, Peoples R China

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来源 :

APPLIED SURFACE SCIENCE

ISSN: 0169-4332

年份: 2022

卷: 585

6 . 7

JCR@2022

6 . 7 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:66

JCR分区:1

中科院分区:2

被引次数:

WoS核心集被引频次: 89

SCOPUS被引频次: 90

ESI高被引论文在榜: 1 展开所有

  • 2023-7

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