等 离 子 喷 涂 氮 化 硼 纳 米 片 增 强 Ni3Al复合涂层的摩擦学性能

Translated title of the contribution: Tribological properties of plasma-sprayed boron nitride nanoplatelet reinforced Ni3Al composite coating

Xuyao Lou, Bo Zhou, Ying Song, Xiaolong Lu

Research output: Contribution to journalArticlepeer-review

Abstract

Boron nitride nanoplatelet (BNNP) reinforced Ni3Al composite coatings were fabricated by using plasma spray. The results show that the main phases of the coating contain in-situ synthesized Ni3 Al and trace amounts of Al203. Compared with monolithic Ni3 Al coating, the BNNP/Ni3 Al composite coating displays a good combination of improved wear resistance and relatively low coefficient of friction, especially the wear resistance of the composite is increased up to 1.5 times. The addition of BNNPs induces a change of the dominant wear mechanisms from brittle fracture and three-body abrasive wear associated with the monolithic Ni3 Al coating to mild abrasive wear along with the BNNP/Ni3 Al composite coating. Furthermore, the formation of B N N P tribolayer on the worn surface of the composite coating not only contributes to the self-lubrication function but also significantly suppresses contact damage of both the composite coating and its counterpart.

Translated title of the contributionTribological properties of plasma-sprayed boron nitride nanoplatelet reinforced Ni3Al composite coating
Original languageChinese (Traditional)
Pages (from-to)266-271
Number of pages6
JournalJinshu Rechuli/Heat Treatment of Metals
Volume47
Issue number8
DOIs
Publication statusPublished - Aug 2022
Externally publishedYes

Keywords

  • boron nitride nanoplatelet
  • Ni3 Al composite coating
  • plasma spraying
  • tribological properties

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