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dc.contributor.authorWantana Koetniyomen_US
dc.contributor.authorYossawas Nopjindaen_US
dc.contributor.authorRomechalee Tepnoken_US
dc.contributor.authorNattaya Tosangthumen_US
dc.contributor.authorMonnapas Morakotjindaen_US
dc.contributor.authorThanyaporn Yotkaewen_US
dc.contributor.authorPongsak Wilaen_US
dc.contributor.authorRuangdaj Tongsrien_US
dc.date.accessioned2020-10-08T08:36:16Z-
dc.date.available2020-10-08T08:36:16Z-
dc.date.issued2020en_US
dc.identifier.citationChiang Mai Journal of Science 47,4 (Special Issue II : July 2020), p.838-853en_US
dc.identifier.issn2465-3845en_US
dc.identifier.urihttps://epg.science.cmu.ac.th/ejournal/dl.php?journal_id=11110en_US
dc.identifier.urihttp://cmuir.cmu.ac.th/jspui/handle/6653943832/69895-
dc.descriptionThe Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science are welcomed except in areas such as agriculture, engineering and medical science which are outside the scope of the Journal. Currently, we focus on manuscripts in biology, chemistry, physics, materials science and environmental science. Papers in mathematics statistics and computer science are also included but should be of an applied nature rather than purely theoretical. Manuscripts describing experiments on humans or animals are required to provide proof that all experiments have been carried out according to the ethical regulations of the respective institutional and/or governmental authorities and this should be clearly stated in the manuscript itself. The Editor reserves the right to reject manuscripts that fail to do so.en_US
dc.description.abstractTraditional powder metallurgical process is commonly used for producing self-lubricating composites. Solid lubricant dispersion in the steel matrices affects tribological properties by lowering friction coefficient leading to lifetime extension of steel matrix composite parts. Molybdenum disulfide (MoS2) is one of the most used solid lubricants since its lamellar crystalline structure can form a sliding film adhering to the rubbing surfaces. The sliding film acts as anti-friction or anti-wear layer. Due to such action, MoS2 is widely used for providing friction reduction in a situation where the use of liquid lubricants is impractical. However, MoS2 decomposes and reacts with the matrix at high temperatures, usually employed for producing sintered self-lubricating composites. The reaction leads to undesirable products when the powder metallurgical route is used to incorporate MoS2 into steel matrices. In order to lessen undesirable reaction, the temperature-activated phenomenon, resulting in decrease of lubricating efficiency, it is necessary to find the method for mitigating decomposition and reaction. In this work, tin (Sn) powder was added to the mixtures of 316L stainless steel and MoS2 powders with expectation that sintering enhancement by Sn powder addition would reduce sintering temperatures and thus reduce MoS2 + 316L reaction. Varied MoS2 contents (5, 10 and 15 wt. %) were mixed with fixed 4 wt. % Sn and balance 316L stainless steel powder. The green compacts of powder mixtures were sintered at temperatures of 1,150 C and 1,200 C in hydrogen atmosphere for 45 min. Mechanical properties and dry-sliding wear behavior of the sintered composites were investigated. Liquid phase sintering due to Sn powder addition was observed. However, the energy dispersive spectroscopy (element mapping mode) showed that the reaction between MoS2 and alloying elements in 316L powder occurred and resulted in sulfide formation. It was found that the amount of added MoS2 had influences on the tensile properties, hardness and sintered density. Although wear resistance and friction coefficient slightly increased according to the MoS2 content, the added MoS2 amounts higher than 10 wt.% led to adverse effect.en_US
dc.language.isoEngen_US
dc.publisherFaculty of Science, Chiang Mai Universityen_US
dc.subjectpowder metallurgyen_US
dc.subjectsolid lubricantsen_US
dc.subjectmolybdenum disulfideen_US
dc.subjectfriction coefficienten_US
dc.titleDry Sliding Wear Behavior of Sintered SS316L-Sn Containing MoS2 Solid Lubricanten_US
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