Friction and Wear Property of Copper Alloys for Plain Bearing

Copper alloys have been used for plain bearing material in many kinds of engineering machines. In this study typical copper alloys are selected from the view point of strength and thermal conductivity that is proportional to electric conductivity. The aim of this study is to investigate that the the...

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Autores principales:	Masahito Fujita, Shintaro Fujii, Hayao Eguchi, Genjiro Hagino
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2015
Materias:	copper alloy friction coefficient wear thermal conductivity electric conductivity tribology 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/7ab12045f4644589ab5664b55796e1cf
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spelling	oai:doaj.org-article:7ab12045f4644589ab5664b55796e1cf2021-11-05T09:22:14ZFriction and Wear Property of Copper Alloys for Plain Bearing1881-219810.2474/trol.10.366https://doaj.org/article/7ab12045f4644589ab5664b55796e1cf2015-11-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/10/5/10_366/_pdf/-char/enhttps://doaj.org/toc/1881-2198Copper alloys have been used for plain bearing material in many kinds of engineering machines. In this study typical copper alloys are selected from the view point of strength and thermal conductivity that is proportional to electric conductivity. The aim of this study is to investigate that the thermal conductivity is very important character to keep mild friction with appropriate condition of block-on-ring tests. The results show that the patterns of friction coefficient of time are classified into four types. Type I is stable in low friction. Type II is slightly up in the end part. Type III is less stable and up to 0.4 level of friction coefficient (μ). Type IV is rough waving in more over 0.4 level of friction coefficient (μ). The materials of Type I are chromium copper alloy and Corson copper alloy. The Type II is beryllium copper alloy. These Type I & II alloys have the same properties of high thermal conductivity and characteristic microstructure of dispersed hard particles in copper matrix. High thermal conductivity reveals good tribological performance, i. e., low friction and wear. Moreover after tribological test, the surface of these alloys changes and transformes to rich oxide surface with condensed hard particles. It’s action is simple application of friction steps to escape the severe wear. Especially the copper alloy with ferrous particles dispersed in matrix makes severe mode of friction by the same element of friction.Masahito FujitaShintaro FujiiHayao EguchiGenjiro HaginoJapanese Society of Tribologistsarticlecopper alloyfriction coefficientwearthermal conductivityelectric conductivitytribologyPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 10, Iss 5, Pp 366-376 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	copper alloy friction coefficient wear thermal conductivity electric conductivity tribology Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	copper alloy friction coefficient wear thermal conductivity electric conductivity tribology Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Masahito Fujita Shintaro Fujii Hayao Eguchi Genjiro Hagino Friction and Wear Property of Copper Alloys for Plain Bearing
description	Copper alloys have been used for plain bearing material in many kinds of engineering machines. In this study typical copper alloys are selected from the view point of strength and thermal conductivity that is proportional to electric conductivity. The aim of this study is to investigate that the thermal conductivity is very important character to keep mild friction with appropriate condition of block-on-ring tests. The results show that the patterns of friction coefficient of time are classified into four types. Type I is stable in low friction. Type II is slightly up in the end part. Type III is less stable and up to 0.4 level of friction coefficient (μ). Type IV is rough waving in more over 0.4 level of friction coefficient (μ). The materials of Type I are chromium copper alloy and Corson copper alloy. The Type II is beryllium copper alloy. These Type I & II alloys have the same properties of high thermal conductivity and characteristic microstructure of dispersed hard particles in copper matrix. High thermal conductivity reveals good tribological performance, i. e., low friction and wear. Moreover after tribological test, the surface of these alloys changes and transformes to rich oxide surface with condensed hard particles. It’s action is simple application of friction steps to escape the severe wear. Especially the copper alloy with ferrous particles dispersed in matrix makes severe mode of friction by the same element of friction.
format	article
author	Masahito Fujita Shintaro Fujii Hayao Eguchi Genjiro Hagino
author_facet	Masahito Fujita Shintaro Fujii Hayao Eguchi Genjiro Hagino
author_sort	Masahito Fujita
title	Friction and Wear Property of Copper Alloys for Plain Bearing
title_short	Friction and Wear Property of Copper Alloys for Plain Bearing
title_full	Friction and Wear Property of Copper Alloys for Plain Bearing
title_fullStr	Friction and Wear Property of Copper Alloys for Plain Bearing
title_full_unstemmed	Friction and Wear Property of Copper Alloys for Plain Bearing
title_sort	friction and wear property of copper alloys for plain bearing
publisher	Japanese Society of Tribologists
publishDate	2015
url	https://doaj.org/article/7ab12045f4644589ab5664b55796e1cf
work_keys_str_mv	AT masahitofujita frictionandwearpropertyofcopperalloysforplainbearing AT shintarofujii frictionandwearpropertyofcopperalloysforplainbearing AT hayaoeguchi frictionandwearpropertyofcopperalloysforplainbearing AT genjirohagino frictionandwearpropertyofcopperalloysforplainbearing
_version_	1718444419201368064

Friction and Wear Property of Copper Alloys for Plain Bearing

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