Wear of different material pairings for the cylinder liner – piston ring contact

Thomas Wopelka, Ulrike Cihak-Bayr, Claudia Lenauer, F. Ditrói, S. Takács, Johannes Sequard-Base, Martin Jech

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Purpose: This paper aims to investigate the wear behaviour of different materials for cylinder liners and piston rings in a linear reciprocating tribometer with special focus on the wear of the cylinder liner in the boundary lubrication regime. Design/methodology/approach: Conventional nitrided steel, as well as diamond-like carbon and chromium nitride-coated piston rings, were tested against cast iron, AlSi and Fe-coated AlSi cylinder liners. The experiments were carried out with samples produced from original engine parts to have the original surface topography available. Radioactive tracer isotopes were used to measure cylinder liner wear continuously, enabling separation of running-in and steady-state wear. Findings: A ranking of the material pairings with respect to wear behaviour of the cylinder liner was found. Post-test inspection of the cylinder samples by scanning electron microscopy (SEM) revealed differences in the wear mechanisms for the different material combinations. The results show that the running-in and steady-state wear of the liners can be reduced by choosing the appropriate material for the piston ring. Originality/value: The use of original engine parts in a closely controlled tribometer environment under realistic loading conditions, in conjunction with continuous and highly sensitive wear measurement methods and a detailed SEM analysis of the wear mechanisms, forms an intermediate step between engine testing and laboratory environment testing.

Original languageEnglish
Pages (from-to)687-699
Number of pages13
JournalIndustrial Lubrication and Tribology
Volume70
Issue number4
DOIs
Publication statusPublished - Jan 1 2018

Fingerprint

Piston rings
Engine cylinders
Wear of materials
Engines
Radioactive Tracers
Radioactive tracers
Scanning electron microscopy
Diamond
Steel
Testing
Surface topography
Chromium
Cast iron
Nitrides
Isotopes
Lubrication
Diamonds
Carbon
Inspection

Keywords

  • Boundary lubrication
  • Internal combustion engines
  • Radioactive isotopes
  • Sliding wear
  • Surface analysis
  • Tribometer testing
  • Wear testing

ASJC Scopus subject areas

  • Mechanical Engineering
  • Energy(all)
  • Surfaces, Coatings and Films

Cite this

Wear of different material pairings for the cylinder liner – piston ring contact. / Wopelka, Thomas; Cihak-Bayr, Ulrike; Lenauer, Claudia; Ditrói, F.; Takács, S.; Sequard-Base, Johannes; Jech, Martin.

In: Industrial Lubrication and Tribology, Vol. 70, No. 4, 01.01.2018, p. 687-699.

Research output: Contribution to journalArticle

Wopelka, Thomas ; Cihak-Bayr, Ulrike ; Lenauer, Claudia ; Ditrói, F. ; Takács, S. ; Sequard-Base, Johannes ; Jech, Martin. / Wear of different material pairings for the cylinder liner – piston ring contact. In: Industrial Lubrication and Tribology. 2018 ; Vol. 70, No. 4. pp. 687-699.
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