Influence of Wear Surface Morphology and Phosphorus-Containing Tribofilm on Crack Initiation of Manganese Phosphate Coated Steel under Rolling–Sliding Contact

To improve the rolling–sliding contact fatigue strength of a case-carburized steel, the effect of the wear surface morphologies of manganese phosphate (MnP) coated steel and the growth and removal of phosphorus-containing tribofilm on surface-initiated crack formation was investigated. In order to m...

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Autores principales:	Yukio Tamura, Kazutaka Kobayashi, Kenichiro Aratani, Shinji Tanaka, Masao Kikuchi, Masabumi Masuko, Naoto Ohtake
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2020
Materias:	manganese phosphate coating wear rolling contact fatigue rolling–sliding contact tribofilm carburized steel 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/545ef538bf8d4c58aa1acd1b807c3bdc
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spelling	oai:doaj.org-article:545ef538bf8d4c58aa1acd1b807c3bdc2021-11-05T09:10:33ZInfluence of Wear Surface Morphology and Phosphorus-Containing Tribofilm on Crack Initiation of Manganese Phosphate Coated Steel under Rolling–Sliding Contact1881-219810.2474/trol.15.154https://doaj.org/article/545ef538bf8d4c58aa1acd1b807c3bdc2020-06-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/15/3/15_154/_pdf/-char/enhttps://doaj.org/toc/1881-2198To improve the rolling–sliding contact fatigue strength of a case-carburized steel, the effect of the wear surface morphologies of manganese phosphate (MnP) coated steel and the growth and removal of phosphorus-containing tribofilm on surface-initiated crack formation was investigated. In order to modify the wear surface morphologies, two types of surface textures (ground and shot blasted) were prepared, followed by the MnP coating process. The tribological properties of the coated steel, tribofilm growth and removal, and surface-initiated crack formation were evaluated using a ball-on-disk tribometer with a rolling–sliding mode. The MnP coating on both the ground and shot blasted steel had nearly the same thickness and surface roughness. However, for the ground surface sample, the interface morphology between the coating and steel substrate was more irregular than the shot blasted surface sample, resulting in a larger number of exposed steel areas with smaller sizes after the MnP was almost worn away on tribological tests. During the running-in period, phosphorus-containing tribofilm growth and removal on the smaller exposed steel areas were observed. The surface-initiated crack formation on the smaller exposed steel areas was suppressed compared with larger exposed steel areas.Yukio TamuraKazutaka KobayashiKenichiro ArataniShinji TanakaMasao KikuchiMasabumi MasukoNaoto OhtakeJapanese Society of Tribologistsarticlemanganese phosphate coatingwearrolling contact fatiguerolling–sliding contacttribofilmcarburized steelPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 15, Iss 3, Pp 154-169 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	manganese phosphate coating wear rolling contact fatigue rolling–sliding contact tribofilm carburized steel Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	manganese phosphate coating wear rolling contact fatigue rolling–sliding contact tribofilm carburized steel Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Yukio Tamura Kazutaka Kobayashi Kenichiro Aratani Shinji Tanaka Masao Kikuchi Masabumi Masuko Naoto Ohtake Influence of Wear Surface Morphology and Phosphorus-Containing Tribofilm on Crack Initiation of Manganese Phosphate Coated Steel under Rolling–Sliding Contact
description	To improve the rolling–sliding contact fatigue strength of a case-carburized steel, the effect of the wear surface morphologies of manganese phosphate (MnP) coated steel and the growth and removal of phosphorus-containing tribofilm on surface-initiated crack formation was investigated. In order to modify the wear surface morphologies, two types of surface textures (ground and shot blasted) were prepared, followed by the MnP coating process. The tribological properties of the coated steel, tribofilm growth and removal, and surface-initiated crack formation were evaluated using a ball-on-disk tribometer with a rolling–sliding mode. The MnP coating on both the ground and shot blasted steel had nearly the same thickness and surface roughness. However, for the ground surface sample, the interface morphology between the coating and steel substrate was more irregular than the shot blasted surface sample, resulting in a larger number of exposed steel areas with smaller sizes after the MnP was almost worn away on tribological tests. During the running-in period, phosphorus-containing tribofilm growth and removal on the smaller exposed steel areas were observed. The surface-initiated crack formation on the smaller exposed steel areas was suppressed compared with larger exposed steel areas.
format	article
author	Yukio Tamura Kazutaka Kobayashi Kenichiro Aratani Shinji Tanaka Masao Kikuchi Masabumi Masuko Naoto Ohtake
author_facet	Yukio Tamura Kazutaka Kobayashi Kenichiro Aratani Shinji Tanaka Masao Kikuchi Masabumi Masuko Naoto Ohtake
author_sort	Yukio Tamura
title	Influence of Wear Surface Morphology and Phosphorus-Containing Tribofilm on Crack Initiation of Manganese Phosphate Coated Steel under Rolling–Sliding Contact
title_short	Influence of Wear Surface Morphology and Phosphorus-Containing Tribofilm on Crack Initiation of Manganese Phosphate Coated Steel under Rolling–Sliding Contact
title_full	Influence of Wear Surface Morphology and Phosphorus-Containing Tribofilm on Crack Initiation of Manganese Phosphate Coated Steel under Rolling–Sliding Contact
title_fullStr	Influence of Wear Surface Morphology and Phosphorus-Containing Tribofilm on Crack Initiation of Manganese Phosphate Coated Steel under Rolling–Sliding Contact
title_full_unstemmed	Influence of Wear Surface Morphology and Phosphorus-Containing Tribofilm on Crack Initiation of Manganese Phosphate Coated Steel under Rolling–Sliding Contact
title_sort	influence of wear surface morphology and phosphorus-containing tribofilm on crack initiation of manganese phosphate coated steel under rolling–sliding contact
publisher	Japanese Society of Tribologists
publishDate	2020
url	https://doaj.org/article/545ef538bf8d4c58aa1acd1b807c3bdc
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Influence of Wear Surface Morphology and Phosphorus-Containing Tribofilm on Crack Initiation of Manganese Phosphate Coated Steel under Rolling–Sliding Contact

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