Tribological properties of sputtered CrN coatings under dry sliding oscillation motion at elevated temperatures

Citation
H. Scheerer et al., Tribological properties of sputtered CrN coatings under dry sliding oscillation motion at elevated temperatures, SURF COAT, 142, 2001, pp. 1017-1022
Citations number
6
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Material Science & Engineering
Journal title
SURFACE & COATINGS TECHNOLOGY
ISSN journal
0257-8972 → ACNP
Volume
142
Year of publication
2001
Pages
1017 - 1022
Database
ISI
SICI code
0257-8972(200107)142:<1017:TPOSCC>2.0.ZU;2-O
Abstract
In the future dry running machine elements may play a more important role, due to environmental legislation. The economical demand for cost and timesa ving causes higher mechanical and thermal stresses for tools in high-speed production processes. Is it possible to improve the wear resistance by the use of thin hard coatings and will they find an area of application especia lly at elevated temperatures where lubricants fail? Therefore, oscillating sliding motion dry wear experiments at specific temperatures ranging from 3 0 to 700 degreesC (900 degreesC is possible) were performed on PVD-coated s teels and light metal alloys. The characterisation of the coatings includes fundamental properties such as thickness, hardness, structure and residual stresses. The tribological tests were done with an SRV3 apparatus from Opt imol, the coatings were tested against 100Cr6 balls using a ball-on-disk ar rangement. The friction and wear behaviour was documented. The wear traces were characterised using a Hommel Tester T 8000. Topographical microanalysi s was done with SEM and EDX. (C) 2001 Elsevier Science BN. All rights reser ved.