Tribological Properties of Nitrided Steels Lubricated with Fully Formulated Oils in Boundary Lubrication Condition

Nitriding is one of the most popular heat treatments widely used in hydraulic sliding parts of automotive or construction machinery components. Since the nitrided steels shows great wear resistance due to its high hardness, it is widely applied to various sliding parts in the hydraulic system of con...

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Autores principales:	Hiroto Aota, Yukio Tamura, Hiroshi Yamamoto, Shinji Tanaka, Masao Kikuchi, Masabumi Masuko
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2018
Materias:	nitriding compound layer diffusion layer hydraulic tribofilm additive zndtp 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/a0aa840b1536423aa248135baed99d72
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spelling	oai:doaj.org-article:a0aa840b1536423aa248135baed99d722021-11-05T09:19:16ZTribological Properties of Nitrided Steels Lubricated with Fully Formulated Oils in Boundary Lubrication Condition1881-219810.2474/trol.13.166https://doaj.org/article/a0aa840b1536423aa248135baed99d722018-07-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/13/3/13_166/_pdf/-char/enhttps://doaj.org/toc/1881-2198Nitriding is one of the most popular heat treatments widely used in hydraulic sliding parts of automotive or construction machinery components. Since the nitrided steels shows great wear resistance due to its high hardness, it is widely applied to various sliding parts in the hydraulic system of construction machinery. During operation, these parts are usually lubricated with fully formulated oils, which include various additives such as dialkyldithiophosphate (ZnDTP), dispersant, detergent, etc. In this study, the tribological features of two kinds of nitrided surfaces lubricated with fully formulated oil and sample oils were evaluated by changing the combination of additive element formulations, and the effect of additive formulation on tribofilm formation and frictional property were investigated in detail. As a result, it was revealed that there is a large interaction between the nitrided surfaces and additives, the coexistence of ZnDTP and detergent affects the phosphorous-derived tribofilm formation on nitrided surface as well as their frictional properties. In particular, the low frictional characteristics of nitrided compound layer was characterized by the smoothed surface and low tribofilm formation on the track.Hiroto AotaYukio TamuraHiroshi YamamotoShinji TanakaMasao KikuchiMasabumi MasukoJapanese Society of Tribologistsarticlenitridingcompound layerdiffusion layerhydraulictribofilmadditivezndtpPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 13, Iss 3, Pp 166-171 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	nitriding compound layer diffusion layer hydraulic tribofilm additive zndtp Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	nitriding compound layer diffusion layer hydraulic tribofilm additive zndtp Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Hiroto Aota Yukio Tamura Hiroshi Yamamoto Shinji Tanaka Masao Kikuchi Masabumi Masuko Tribological Properties of Nitrided Steels Lubricated with Fully Formulated Oils in Boundary Lubrication Condition
description	Nitriding is one of the most popular heat treatments widely used in hydraulic sliding parts of automotive or construction machinery components. Since the nitrided steels shows great wear resistance due to its high hardness, it is widely applied to various sliding parts in the hydraulic system of construction machinery. During operation, these parts are usually lubricated with fully formulated oils, which include various additives such as dialkyldithiophosphate (ZnDTP), dispersant, detergent, etc. In this study, the tribological features of two kinds of nitrided surfaces lubricated with fully formulated oil and sample oils were evaluated by changing the combination of additive element formulations, and the effect of additive formulation on tribofilm formation and frictional property were investigated in detail. As a result, it was revealed that there is a large interaction between the nitrided surfaces and additives, the coexistence of ZnDTP and detergent affects the phosphorous-derived tribofilm formation on nitrided surface as well as their frictional properties. In particular, the low frictional characteristics of nitrided compound layer was characterized by the smoothed surface and low tribofilm formation on the track.
format	article
author	Hiroto Aota Yukio Tamura Hiroshi Yamamoto Shinji Tanaka Masao Kikuchi Masabumi Masuko
author_facet	Hiroto Aota Yukio Tamura Hiroshi Yamamoto Shinji Tanaka Masao Kikuchi Masabumi Masuko
author_sort	Hiroto Aota
title	Tribological Properties of Nitrided Steels Lubricated with Fully Formulated Oils in Boundary Lubrication Condition
title_short	Tribological Properties of Nitrided Steels Lubricated with Fully Formulated Oils in Boundary Lubrication Condition
title_full	Tribological Properties of Nitrided Steels Lubricated with Fully Formulated Oils in Boundary Lubrication Condition
title_fullStr	Tribological Properties of Nitrided Steels Lubricated with Fully Formulated Oils in Boundary Lubrication Condition
title_full_unstemmed	Tribological Properties of Nitrided Steels Lubricated with Fully Formulated Oils in Boundary Lubrication Condition
title_sort	tribological properties of nitrided steels lubricated with fully formulated oils in boundary lubrication condition
publisher	Japanese Society of Tribologists
publishDate	2018
url	https://doaj.org/article/a0aa840b1536423aa248135baed99d72
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Tribological Properties of Nitrided Steels Lubricated with Fully Formulated Oils in Boundary Lubrication Condition

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