Wear and Friction of Greases Containing Organic and Inorganic Sulfur Carriers

Lithium based grease formulations are the most common lubricants used in industry today. Sulfur containing additives play a key role in improving wear and friction performance of these greases. The current study is focused on developing an understanding of characteristics of chemical bonding between...

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Autores principales:	Ami Shah, Sujay Bagi, Pranesh Aswath
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2017
Materias:	sulfur carriers wear grease tribofilms extreme-pressure additives Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/55f730834bde48b8a3c0ed77fa5dd865
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spelling	oai:doaj.org-article:55f730834bde48b8a3c0ed77fa5dd8652021-11-05T09:20:03ZWear and Friction of Greases Containing Organic and Inorganic Sulfur Carriers1881-219810.2474/trol.12.162https://doaj.org/article/55f730834bde48b8a3c0ed77fa5dd8652017-08-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/12/4/12_162/_pdf/-char/enhttps://doaj.org/toc/1881-2198Lithium based grease formulations are the most common lubricants used in industry today. Sulfur containing additives play a key role in improving wear and friction performance of these greases. The current study is focused on developing an understanding of characteristics of chemical bonding between sulfur carriers (MoS2, WS2 , MoDTC and organo tungstate ) and the interacting surfaces and evaluates their effect as anti-wear and anti-friction agents. ASTM D2266 and spectrum loading tests with varying loads while keeping other tests parameters constant were performed on the grease blends to understand effects of cyclic loading on tribochemical degradation of sulfur carriers. Tribofilms formed on the wear surface were analyzed using surface characterization techniques like SEM, EDS and Stereo Optical Microscopes. Wear scar diameter (WSD) and coefficient of friction (COF) were reported for the tests performed. This research aims to gain better insight on the atomic coordination or oxidation states of sulfur atom in additives and their correlation with anti-wear and extreme pressure performance when blended in greases.Ami ShahSujay BagiPranesh AswathJapanese Society of Tribologistsarticlesulfur carriersweargreasetribofilmsextreme-pressure additivesPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 12, Iss 4, Pp 162-170 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	sulfur carriers wear grease tribofilms extreme-pressure additives Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	sulfur carriers wear grease tribofilms extreme-pressure additives Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Ami Shah Sujay Bagi Pranesh Aswath Wear and Friction of Greases Containing Organic and Inorganic Sulfur Carriers
description	Lithium based grease formulations are the most common lubricants used in industry today. Sulfur containing additives play a key role in improving wear and friction performance of these greases. The current study is focused on developing an understanding of characteristics of chemical bonding between sulfur carriers (MoS2, WS2 , MoDTC and organo tungstate ) and the interacting surfaces and evaluates their effect as anti-wear and anti-friction agents. ASTM D2266 and spectrum loading tests with varying loads while keeping other tests parameters constant were performed on the grease blends to understand effects of cyclic loading on tribochemical degradation of sulfur carriers. Tribofilms formed on the wear surface were analyzed using surface characterization techniques like SEM, EDS and Stereo Optical Microscopes. Wear scar diameter (WSD) and coefficient of friction (COF) were reported for the tests performed. This research aims to gain better insight on the atomic coordination or oxidation states of sulfur atom in additives and their correlation with anti-wear and extreme pressure performance when blended in greases.
format	article
author	Ami Shah Sujay Bagi Pranesh Aswath
author_facet	Ami Shah Sujay Bagi Pranesh Aswath
author_sort	Ami Shah
title	Wear and Friction of Greases Containing Organic and Inorganic Sulfur Carriers
title_short	Wear and Friction of Greases Containing Organic and Inorganic Sulfur Carriers
title_full	Wear and Friction of Greases Containing Organic and Inorganic Sulfur Carriers
title_fullStr	Wear and Friction of Greases Containing Organic and Inorganic Sulfur Carriers
title_full_unstemmed	Wear and Friction of Greases Containing Organic and Inorganic Sulfur Carriers
title_sort	wear and friction of greases containing organic and inorganic sulfur carriers
publisher	Japanese Society of Tribologists
publishDate	2017
url	https://doaj.org/article/55f730834bde48b8a3c0ed77fa5dd865
work_keys_str_mv	AT amishah wearandfrictionofgreasescontainingorganicandinorganicsulfurcarriers AT sujaybagi wearandfrictionofgreasescontainingorganicandinorganicsulfurcarriers AT praneshaswath wearandfrictionofgreasescontainingorganicandinorganicsulfurcarriers
_version_	1718444410351386624

Wear and Friction of Greases Containing Organic and Inorganic Sulfur Carriers

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