TY - GEN
T1 - Friction reduction by water soluble tetraalkylammonium thiometallates
AU - Chiñas-Castillo, Fernando
AU - Lara-Romero, Javier
AU - Alonso-Núñez, Gabriel
AU - Barceinas-Sánchez, J. D.O.
AU - Jiménez-Sandoval, S.
PY - 2006
Y1 - 2006
N2 - Lubricants bases for metalworking applications make extensive use of water-soluble additives to reduce friction and wear. In order to do such task, these additives must form a lubricating film that separates the contact surfaces, thus imparting good surface finishes to the worked parts. This paper presents a study on the tribological performance of aqueous solutions of tetraalkylammonium thiomolybdates and thiotungstates. Tests were carried out on a pin-on-disc tribometer for a steel-aluminum contact while keeping load, entrainment speed, sliding distance, temperature and concentration of the additive constant to study the lubrication effect of these two salts. Chemical analysis of the wear track indicates the presence of an in-contact formed solid film enriched with MoS2 and WS2 that reduces friction markedly. This reduction in friction, observed for both solutions, is highly dependent on the alkyl group.
AB - Lubricants bases for metalworking applications make extensive use of water-soluble additives to reduce friction and wear. In order to do such task, these additives must form a lubricating film that separates the contact surfaces, thus imparting good surface finishes to the worked parts. This paper presents a study on the tribological performance of aqueous solutions of tetraalkylammonium thiomolybdates and thiotungstates. Tests were carried out on a pin-on-disc tribometer for a steel-aluminum contact while keeping load, entrainment speed, sliding distance, temperature and concentration of the additive constant to study the lubrication effect of these two salts. Chemical analysis of the wear track indicates the presence of an in-contact formed solid film enriched with MoS2 and WS2 that reduces friction markedly. This reduction in friction, observed for both solutions, is highly dependent on the alkyl group.
KW - Additive
KW - Film forming
KW - Friction
KW - Tribological
KW - Water soluble
KW - Wear
UR - http://www.scopus.com/inward/record.url?scp=33751259693&partnerID=8YFLogxK
U2 - 10.1115/ijtc2006-12077
DO - 10.1115/ijtc2006-12077
M3 - Contribución a la conferencia
AN - SCOPUS:33751259693
SN - 0791837890
SN - 9780791837894
T3 - Proceedings of STLE/ASME International Joint Tribology Conference, IJTC 2006
BT - Proceedings of STLE/ASME International Joint Tribology Conference, IJTC 2006
PB - American Society of Mechanical Engineers
T2 - STLE/ASME International Joint Tribology Conference, IJTC 2006
Y2 - 23 October 2006 through 25 October 2006
ER -