Tribological behaviors of in situ TiB2 ceramic reinforced TiAl-based composites under sea water environment. Issue 5 (1st April 2017)

• Record Type: Journal Article
• Authors: Wang, Long; Cheng, Jun; Qiao, Zhuhui; Yang, Jun; Liu, Weimin
• Is Part Of: Ceramics international. Volume 43:Issue 5(2017)
• Page Start: 4314
• Page End: 4323
• Publication Date: 2017-04-01
• Subjects: B. Composites -- C. Wear resistance -- D. TiB2; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2016.12.075
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: In this paper, the tribological behaviors of 20 and 40 vol% in situ TiB2 reinforced TiAl-based composites sliding against SiC balls were investigated in artificial sea water, and TiAl alloy was also studied as a comparison. The results showed that the TiAl-TiB2 composites are lubricated in artificial sea water and TiB2 is effective to improve the wear resistance of the TiAl alloy. Also, it was found that the tribological behaviors have a dependency on the applied loads and sliding speeds. Worn surface morphologies and composition together with electrochemical behaviors of the materials were evaluated and related to the tribological behaviors.