Dry sliding wear behaviour of Ti-TiB-TiNx in-situ composite synthesised by reactive hot pressing

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Silva, JI (Author) Other; Alves, AC (Author) Other; Pinto, AM (Author) Other; Silva, FS (Author) Other; Toptan, F (Author) Other

Journal

Title: International Journal of Surface Science and Engineering

Vol. 10

Pages: 317-329

ISSN: 1749-785X

Publisher: Inderscience Publishers

Indexing

ISI Web of Knowledge - 3 Citations

Scopus - 9 Citations

Other information

Authenticus ID: P-00K-NEF

DOI: 10.1504/ijsurfse.2016.077533

Abstract (EN): Ti and its alloys are attractive materials for a variety of fields; however, a major problem of Ti and its alloys is their poor wear resistance. It is known that reinforcing Ti with hard ceramic phases can substantially improve the wear resistance. Thus, Ti-TiB-TiNx in-situ metal matrix composites were synthesised by reactive hot pressing utilising Ti/BN powder blends with 23:1 Ti:BN weight ratio. Ball-on-plate reciprocating dry sliding wear tests were performed against a 10 mm of alumina ball under 10 N normal load, at a frequency of 1 Hz, and with the total stroke length of 3 mm during 1,800 s. Results showed that the total wear volume loss was significantly decreased on the composite (11.4 +/- 2.0 x 10(-3) mm(3)) as compared to the unreinforced Ti (40.9 +/- 4.2 x 10(-3) mm(3)) due to the strengthening effect of the in-situ reinforcing phases.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13