Volume 12, Number 2 (June 2015)                   IJMSE 2015, 12(2): 47-55 | Back to browse issues page



DOI: 10.22068/ijmse.12.2.47

XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Shafiei S M M, Divandari M, Boutorabi S M A, Naghizadeh. COMPARISON OF PROPERTIES OF TiN/TiCN AND PLASMA NITRIDING/TiCN FILMS DEPOSITED ON THE TOOL STEEL BY PULSED DC- PACVD. IJMSE. 2015; 12 (2) :47-55
URL: http://ijmse.iust.ac.ir/article-1-802-en.html

Abstract:   (1744 Views)
In this work, TiN/TiCN & PN/TiCN multilayer films were deposited by plasma- assisted chemical vapour deposition (PACVD). Plasma nitriding (PN) and TiN intermediate layer prior to coating leads to appropriate hardness gradient and it can greatly improve the mechanical properties of the coating. The composition, crystalline structure and phase of the films were investigated by X-ray diffraction. Atomic force microscopy and scanning electron microscopy were employed to observe the morphology and structure of the films. The TiCN layer exhibited a columnar structure. The adhesion force between the film and the tool steel substrate was 30.8 MPa for TiN/TiCN and 25.4 MPa for PN/TiCN film determined by pull off tests. The hardness of TiN/TiCN film was 12.75 GPa while it was 5.4 GPa for PN/TiCN film, respectively. The improvement of the adhesion in TiN/TiCN was attributed to a less gradient hardness configuration. In addition, the mean friction coefficients of the films were about 0.2 for TiN/TiCN and 0.3 for PN/TiCN film determined by nanoindentation tests.
Full-Text [PDF 6192 kb]   (963 Downloads)    
Type of Study: Research paper |

Add your comments about this article : Your username or email:
Write the security code in the box

© 2016 All Rights Reserved | Iranian Journal of Materials Science and Engineering

Designed & Developed by : Yektaweb