Title of article :
Effects of Si addition on the characteristic evolution and syntheses of nanocomposite Cr–Si–C–N coatings prepared by a hybrid coating system
Author/Authors :
Jeon، نويسنده , , Jun-Ha and Jang، نويسنده , , Chul Sik and Yoon، نويسنده , , Seog-Young and Shin، نويسنده , , Byoung-Chul and Kim، نويسنده , , Kwang Ho، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Abstract :
Quaternary Cr–Si–C–N coatings were deposited on steel substrates (SKD11) by a hybrid system of AIP and sputtering techniques using Cr and Si targets in a Ar/N2/CH4 gaseous mixture. The Cr–Si–C–N coatings having 9.2 at.% Si content had a fine composite microstructure comprising nano-sized crystallites of (Cr and Si)(C and N) well distributed in the amorphous phase of Si3N4 and SiC. Microhardness value of the Cr–Si–C–N coatings by nanoindentation was ∼43 GPa, which was a much largely increased one compared with ∼22 GPa of Cr–C–N coatings and ∼35 GPa of Cr–Si–N coatings. In addition, the average friction coefficient of the Cr–Si–C–N coatings largely decreased with increasing Si content and compared with CrN, Cr(C, N), and Cr–Si–N coatings. In this work, the microstructure and mechanical properties of Cr–Si–C–N coatings were systematically investigated with the instrumental analyses.
Keywords :
arc ion plating , Wear behavior , Superhardness , Cr–Si–C–N coatings , Nanocomposite
Journal title :
Surface and Coatings Technology
Journal title :
Surface and Coatings Technology