NDLI: Effect of different atmospheres on dry friction behavior of steel sliding against brass at high speed

Content Provider	Springer Nature Link
Author	Qiu, Ming Zhang, YongZhen
Copyright Year	2009
Abstract	The atmosphere components have an influence on tribological behaviors of tribo-pairs. Through changing the atmosphere component, the effect of atmosphere component on the tribological behaviors of CrNiMo steel against brass at high sliding velocity was investigated. The wear test was carried out on a high-speed friction and wear test rig whose test atmosphere could be controlled. The tests were performed at four sliding velocities (30, 40, 50, 60 m/s), one contact pressure (1.33 MPa) and two atmosphere components (N$_{2}$ or O$_{2}$). The morphologies of the worn surfaces of various pins were observed with a scanning electron microscope. The chemical compositions of the surfaces and subsurfaces for steels were determined with an energy dispersion spectroscopy. The results showed that the wear rate of the steel pins were low all the time with the sliding velocity increasing in oxygen atmosphere, and that the wear rate of the steel pin in nitrogen atmosphere was higher than that of the steel pin in oxygen atmosphere. It was found that the thin and compact oxidation layer formed on the worn surface of the steel in oxygen atmosphere played a key role in wear resistance. However, the wear rate of the steel pin increased rapidly with the sliding velocity increasing in nitrogen atmosphere, which was attributed to the thick and loose surface layer formed on the worn surface of the steel.
Starting Page	4589
Ending Page	4593
Page Count	5
File Format	PDF
ISSN	10016538
Journal	Chinese Science Bulletin
Volume Number	54
Issue Number	24
e-ISSN	18619541
Language	English
Publisher	SP Science in China Press
Publisher Date	2010-01-03
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	atmosphere CrNiMo steel high velocity dry sliding tribological behavior Engineering Earth Sciences Chemistry/Food Science Physics Life Sciences Science
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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