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A study on friction and wear reduction due to porosity in powder metallurgic gear materials
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).ORCID iD: 0000-0003-2489-0688
2017 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 110, 86-95 p.Article in journal (Refereed) Published
Abstract [en]

It has been widely acknowledged that controlled texturing on a surface can contribute to friction and wear reduction at lubricated sliding contact interfaces. This paper investigates the influence on friction and wear of different pore size distributions of powder metallurgy gear materials. The pore sizes are controlled by different densities of the powder metallurgic materials. Two different kinds of powder metallurgy (PM) gear materials were applied and a standard gear material are used as a reference. The friction and wear coefficients of PM materials sliding on PM materials increase with increasing pore size. The friction and wear coefficients of regular steel sliding on PM materials decrease with increasing pore size. No matter what the material of the disc, peeling is one of the main damage mechanisms of powder metallurgy pins with the biggest porosity.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 110, 86-95 p.
Keyword [en]
Powder metallurgy gear material, Pore size, Friction, Wear
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-206671DOI: 10.1016/j.triboint.2017.02.008ISI: 000398871700010Scopus ID: 2-s2.0-85013213277OAI: oai:DiVA.org:kth-206671DiVA: diva2:1094513
Note

QC 20170510

Available from: 2017-05-10 Created: 2017-05-10 Last updated: 2017-05-10Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • de-DE
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  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
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