Experimental study on improving tribological performance of servo steering gear bearing by preparing Ni60A/WC-Co12 composite coating

Zhen Tian, Bin Wang*, Zhuanghua Liu, Dongchang Liu, Saipeng Xie, Xiaodong Wang, Chaoyang Wang, Jun Dai

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

To improve the tribological performance of servo steering gear bearing, five different Ni60A/WC-Co12 composite coatings were prepared by using high-velocity oxygen fuel technology (HVOF). The friction and wear properties of these composite coatings under four different loads (2N, 5N, 8N, 11N) were investigated. The results showed that the composite coatings in the ratio of 30%Ni60A/70%WC-Co12 had the most excellent performance of friction reduction and wear resistance. Under this ratio, the friction coefficient decreases with the increase of load. Further studies illustrate that the structure of this coating is more conducive to collecting the abrasive debris. In addition, the generation of self-lubricating and transfer films further facilitates the transfer of abrasive particles during the process of friction, thus avoiding the occurrence of the abrasive wear. This study provides technical support in the method of improving the performance of servo steering gear bearings.

Original languageEnglish
Title of host publicationFifth International Conference on Mechanical Engineering and Materials, ICMEM 2024
EditorsGupta Manoj, Jinyang Xu
PublisherSPIE
ISBN (Electronic)9781510688964
DOIs
Publication statusPublished - 2025
Event5th International Conference on Mechanical Engineering and Materials, ICMEM 2024 - Nanchang, China
Duration: 15 Nov 202416 Nov 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13547
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference5th International Conference on Mechanical Engineering and Materials, ICMEM 2024
Country/TerritoryChina
CityNanchang
Period15/11/2416/11/24

Keywords

  • bearing
  • friction
  • Ni60A/WC-Co12
  • Servo steering gear
  • wear

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