Investigation on microstructures and mechanical behavior of in-situ synthesized TiC and TiB reinforced Ti6Al4V based composite

Bowen Zheng, Fuyu Dong*, Xiaoguang Yuan, Yue Zhang, Hongjun Huang, Xiaojiao Zuo, Liangshun Luo, Liang Wang, Yanqing Su, Xuan Wang, Peter K. Liaw

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

To enhance the friction and wear behavior of the Ti6Al4V alloy, titanium matrix composites (TMCs) were prepared by the single TiC, single TiB, and (TiC + TiB) hybrid reinforced with the volume fraction of 2, 6, and 10%, respectively. To investigate the effect of reinforcements on compressive and wear properties, the x-ray Diffraction (XRD), Scanning Electron Microscope (SEM), Electron Probe Micro-analyzer (EPMA), compression test, and pin-on-disk friction tests were applied. The results indicated that compressive strength increased with the addition of the reinforcement, and wear properties were improved due to the uniform distribution of reinforcements, which enhanced the resistance against tangential forces associated with the sliding wear. The wear mechanism appeared to be mainly based on the severe adhesive and oxidative wear, gradually transitioned to slight adhesion, abrasive, and oxidative wear.

Original languageEnglish
Article number116597
JournalMaterials Research Express
Volume6
Issue number11
DOIs
Publication statusPublished - 18 Oct 2019
Externally publishedYes

Keywords

  • compressive strength
  • microstructure
  • titanium matrix composite
  • wear properties

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