No image available for this title
Penanda Bagikan

e-journal

Tribological behaviors of diamond-like carbon coatings on plasma nitrided steel using three BN-containing lubricants

Abstract.
In this work, diamond-like carbon (DLC) coatings were deposited on plasma nitrided AISI 1045 steel by
magnetron sputtering. Three BN-containing additives andmolybdenum dithiocarbamate (MoDTC) were
added to poly-alpha-olefin (PAO) as additives. The additive content (mass fraction) in PAO was fixed at
0.5 wt%. The friction and wear characters of DLC coatings on nitrided steel discs sliding against AISI
52100 steel balls were tested under the lubricated conditions. It was found that borate esters have a
higher load carrying capacity and much better anti-wear and friction-reducing ability than that of
MoDTC. X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) were
employed to explore the properties of the worn surface and the mechanism of friction and wear.
According to the XPS analysis, the adsorbed organic N-containing compounds and BN are, possibly, the
primary reason for the novel borate esters to possess a relatively constant coefficient of friction and
lower wear rate. On the other hand, possibly, the MoDTC molecules break down during sliding and
produce many Mo-oxides, and then the Mo-oxides destroy the DLC coating because of its sharp edge
crystalline solid structure. After destroying the DLC coating, the MoDTC react withmetals and form MoS2
tribofilm, and decrease coefficient of friction of rubbing pairs.

Keywords: BN-containing additives, Diamond-like carbon coating, Tribology, XPS

Ketersediaan

Tidak ada salinan data

Informasi Detail
Judul Seri
Applied Surface Science
No. Panggil
-
Penerbit
London : Elsevier B.V..,
Deskripsi Fisik
Applied Surface Science 255 (2009) 6666–6674
Bahasa
English
ISBN/ISSN
-
Klasifikasi
-
Tipe Isi
-
Tipe Media
-
Tipe Pembawa
-
Edisi
-
Subjek
KIMIA
Info Detail Spesifik
-
Pernyataan Tanggungjawab
Versi lain/terkait

Tidak tersedia versi lain

Lampiran Berkas
Komentar
Anda harus masuk sebelum memberikan komentar