Affiliation:
1. Kunming University of Science and Technology
2. Harbin Institute of Technology
Abstract
Microstructure and properties of plasma immersion ion implantation and deposition
diamond-like carbon (DLC) films on bearing steel substrate were studied. Raman spectroscopy
analysis indicates that PIII&D DLC consists of a mixture of amorphous and crystalline phases, with
a variable ratio of sp2/sp3 carbon bonds, and the sp3 bonds content more than 10%. The
nanohardness (H) and the elastic modulus (E) of DLC films measurement indicate that the
maximum H (E) value is 40GPa (430GPa). The corrosion polarization curves prove that the
corrosion resistance of DLC samples is much better than that of substrate. The friction and wear
behaviors and rolling contact fatigue (RCF) life of these samples show that the friction coefficient
decrease from 0.87 to 0.2; the L10 , L50 , La and L life of treated sample increases by 9.1, 3.2, 2.5 and
2.4 times, respectively. The RCF life scatter extent of treated samples is improved significantly.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Cited by
1 articles.
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