국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Improved Lubrication Performance of Sputtered MoS2 Film by Surface Treatments of Ti-Alloy Substrate
저자	Makoto NISHIMURA, Katsuhiro KISHI, Mineo SUZUKI, Toshihiko AIKAWA, Masashi ARITA
Keyword	Solid film lubricants; Molybdenum disulfide; Sputter-deposited film; Wear life; Ti-alloy substrate; Surface treatment; Adhesion improvement
URL	http://send.nal.go.jp/send/jpn/dlfile.php3/naltr01213?doctype=7&filetype=20&path0=naltr01213&path1=pdf&path2=naltr01213.pdf
보고서번호	NAL TR-1213
발행년도	1993.10
출처	NAL (National Aerospace Laboratory of Japan)
ABSTRACT	A molybdenum disulfide (MoS2) solid film lubricant and a stainless steel substrate are the most common combination used in lubrication systems for aerospace applications.The use of a titanum (Ti) alloy as the substrate is very effective in reducing the weight of mechanical systems,however,it has not been applied for fear that it shortens the wear life of the solid lubricant film as compared with a stainless steel substrate.The aim of this work was to examine whether surface treatment applied to a Ti-alloy substrate are effective in improving the wear life of solid lubricant films,in particular,sputtered MoS2 film.Seventeen kinds of surface treatments were applied to a Ti-6Al-4V alloy substrate,and the lubrication performance and wear life of sputter-deposited MoS2 film on the substrate were eveluated.Tribological performance was investigated by conducting pin/disk sliding tests in a vacuum condition(10-5Pa).The test results indicated that the wear life of the MoS2 film was noticeably improved by applying some types of surface treatment to the Ti-alloy substrate.The MoS2 film deposited on the cyanate-bath-treated Ti-alloy substrate showed a 300-fold improvement in wear life compared with the film on an untreated substrate.This improvement is presumably caused by the increased affinity between the MoS2 film and Ti2O,which was formed on the substrate by the surface treatment.