The Effect of a TiN Interlayer on the Tribological Properties of Diamond-like Carbon Films Deposited on 7A04 Aluminum Alloy

Author

Su, Yongyao ; Gui, X. ; Xie, D. ; Li, S.Y. ; Sun, H. ; Leng, Yongxiang ; Huang, N.

Author_Institution

Key Lab. for Adv. Technol. of Mater., Southwest Jiaotong Univ., Chengdu, China

Volume

39

Issue

11

fYear

2011

Firstpage

3144

Lastpage

3148

Abstract

Aluminum-based alloys are known to be significant candidates in the automotive and aerospace industries. However, the relatively poor wear resistance of aluminum alloys restricts their further application. In this paper, diamond-like carbon (DLC) films are deposited on the 7A04 aluminum alloy to improve its wear resistance by electron cyclotron resonance plasma-enhanced chemical vapor deposition. Before the DLC film deposition, TiN films were first fabricated as interlayer between the 7A04 aluminum alloy and DLC films by unbalanced magnetron sputtering. The influence of the TiN buffer layer on the mechanical properties of the DLC film is studied. The results showed that the TiN interlayer could provide enough mechanical support for the DLC films by suppressing plastic deformation of the aluminum alloy and then could effectively improve wear resistance of DLC films on 7A04 aluminum alloy.

Keywords

cyclotron resonance; diamond-like carbon; plasma CVD; plastic deformation; sputter deposition; thin films; titanium compounds; wear resistance; 7A04 aluminum alloy; DLC; diamond-like carbon films; electron cyclotron resonance plasma-enhanced chemical vapor deposition; mechanical properties; plastic deformation; tribological properties; unbalanced magnetron sputtering; wear resistance; Aluminum alloys; Educational institutions; Resistance; Substrates; Tin; Aluminum alloy; TiN interlayer; diamond-like carbon (DLC); wear resistance;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2011.2169091

Filename

6036184