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Tribological Behaviour of Polymer Materials for Gear Applications
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Investigations about friction and wear behaviour of polymer gears have been relatively limited. Majority of studies were carried out on pin-on-disc equipment and between polymer and steel material pairs. This study compared polymer/polymer contacts to polymer/steel contacts for rolling-sliding motion. Materials used were: ultra high molecular weight polyethylene (UHMWPE), poly ether ether ketone (PEEK), high density polyethylene (HDPE) and steel 280D in shape of discs running against each other. The tests were carried out on twin disc apparatus at room temperature in dry contact conditions. Various polymeric surface roughness values and addition of tap water in contact were tested to observe their influence on coefficient of friction and wear of materials. The specific wear rates were calculated using gravimetric measurements. Abrasive resistance of UHMWPE showed to be the key material property reflecting in good performance. Optical and scanning electronic microscopy (SEM) showed the adhesion of polymer material on steel surface, while steel particles were found on polymer surface. Added tap water increased wear and coefficient of friction and caused corrosion of metal surfaces.

Place, publisher, year, edition, pages
2016. , 80 p.
Keyword [en]
Technology
Keyword [sv]
Teknik
Identifiers
URN: urn:nbn:se:ltu:diva-55043Local ID: bf40ca44-1a7a-49db-8fe5-1a20e9d817b4OAI: oai:DiVA.org:ltu-55043DiVA: diva2:1028424
Subject / course
Student thesis, at least 30 credits
Educational program
Mechanical Engineering, master's level
Supervisors
Examiners
Note
Validerat; 20160105 (global_studentproject_submitter)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf