Titanium Addition of Niobium Nitride Single and Multilayer Coating on Wear Property Corrosion Resistance and Applications on High Speed Drills after Acetylene Introduction

Abstract

This study was composed of three stages In first stage NbNxA coatings were prepared by DC magnetron sputtering In second stage NbTi-NX and NbN/TiNxmin coatings were prepared using RF magnetron sputtering In third stage acetylene was introduced to prepare NbTi-NX-CH coating Considering wear property and corrosion resistance NbTi-N12-CH coating was the optimal parameter for preparation in this research Applied the NbTi-N12-CH coating to a high-speed drill and tested it by drilling 2000 4000 and 6000 holes The results revealed that applying this coating to the drill could increase its drill life to 4000 holes which is two times longer than that of an uncoated drill

Date of Award	2019
Original language	English
Supervisor	Yean-Liang Su (Supervisor)