Synergetic lubricating effect of ws2 and ti3sic2 on tribological properties of ni3al matrix composites at elevated temperatures

  • Wenzheng Zhai
  • , Xiaoliang Shi
  • , Jie Yao
  • , Zengshi Xu
  • , Ahmed Mohamed Mahmoud Ibrahim
  • , Qingshuai Zhu
  • , Long Chen
  • , Yecheng Xiao

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

The tribological behaviors of the Ni3Al-WS2-Ti3SiC2 composites and synergistic effect of composite solid lubricants are investigated from room temperature to 800° C. The results show that the Ni3Al matrix composites (NASC) exhibit excellent tribological properties throughout the test temperatures compared to Ni3Al-based alloy. The excellent tribological properties of NASC are attributed to the synergistic lubricating effect ofWS2 and Ti3SiC2. A lubricating film could be formed below 400° C, and an oxidation protection film is formed above 400° C on the worn surface of NASC during the sliding process, leading to low coefficients of friction (0.18-0.39) and wear rates (1.5-3.7 x 10" mm3 N~ mT).

Original languageEnglish
Pages (from-to)454-466
Number of pages13
JournalTribology Transactions
Volume58
Issue number3
DOIs
Publication statusPublished - Jan 1 2015
Externally publishedYes

Keywords

  • Coupling Lubricants
  • Self-Lubricating Composites
  • Solid Lubrication Friction
  • Wear Mechanisms

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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