Influence of Ti/TiC interface and its site of formation on the properties of powder metallurgically fabricated Ti-based composites reinforced with carbonaceous materials: A review

Abstract

The applications of carbon allotrope-reinforced Ti-based composites have witnessed enormous expansion in recent times owing to their light weight and competitive properties. However, a consistent controversy still exists on the process of in-situ TiC formation (during powder preparation, reinforcement dispersion and synthesis), its site within the composite and particularly the role it plays on the properties of the bulk composite. Although some authors have opined that the presence of TiC in the bulk composite enhances its overall properties, others hold a contrary opinion. Hence, this current study is aimed at reviewing the positions of the previous studies on this seemingly controversial subject up to date; with a view to broadening the available knowledge base on this crucial area of interest.

Keywords:

• Ti-TiC interface
• titanium matrix nano-composites
• carbon allotropes
• in-situ formation

Acknowledgements

The authors are grateful to National Research Foundation (NRF), South Africa, and University of Johannesburg for their financial support.

Disclosure statement

No potential conflict of interest was reported by the authors.