Uniting Superhardness And Damage-tolerance In A Nanosandwich-structured Ti-B-N Coating

Authors/Creators

Xu Jiang
Zheng Yang Li
Zonghan Xie, Edith Cowan University
Paul Munroe

Abstract

A novel nanosandwich-structured Ti–B–N coating was prepared on a Ti–6Al–4V substrate using a double glow discharge plasma technique. This coating consists of alternating Ti(N,B) nanocrystalline layers, containing nanoscale growth twins, and amorphous TiB2–BN layers. Compared with a monolithic TiB2.06 nanocrystalline coating, the new Ti–B–N coating exhibits a marked increase in both damage resistance and hardness (i.e. ∼55 GPa). The enhanced mechanical properties were found to stem from a combination of nanostructuring and nanotwinning effects.

RAS ID

16172

Document Type

Journal Article

Date of Publication

2014

Faculty

Faculty of Health, Engineering and Science

School

School of Engineering

Copyright

subscription content

Publisher

Elsevier

Comments

Jiang, X., Li, Z., Xie, Z. , & Munroe, P. (2014). Uniting superhardness and damage-tolerance in a nanosandwich-structured Ti-B-N coating. Scripta Materialia, 74(March), 88-91. Available here