Affiliation:
1. School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
2. School of Mechanical Engineering, Changzhou University, Changzhou 213164, P. R. China
3. Changzhou High Technology Research Key Laboratory of Mould Advanced Manufacturing, Changzhou University, Changzhou 213164, P. R. China
Abstract
A diamond-like carbon (DLC) coating was deposited on YT14 cemented carbide cutting tools using an MS (magnetron sputtering), and the surface–interface morphologies, phases, and bonding energy of the obtained coatings were investigated using a scanning electron microscope (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), respectively. The wear behaviors of DLC coatings were measured using high temperature wear tests. The results show that the [Formula: see text] and [Formula: see text] appear at 284.4, and 285.3[Formula: see text]eV, respectively, the DLC coating is composed of the crystal planes (111) and (220). The average COF of DLC coatings at 750, 800, and 850[Formula: see text]C was 0.1956, 0.2082, and 0.4085, respectively, the wear depth increases with the wear temperatures increasing: At 750[Formula: see text]C, the diamond planes (111) and (222) remained, while at 800 and 850[Formula: see text]C, only the diamond plane (111) still remained, the diamond plane (220) was oxidized, resulting in wear capability decreasing. The wear mechanism was composed of abrasive wear, delamination, and oxidation wear.
Funder
the Jiangsu Province Science and Technology Support Program
Publisher
World Scientific Pub Co Pte Lt
Subject
Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics