Details
| Translated title of the contribution | Surface analysis of gears and gear oils by time of flight secondary ion mass spectrometry of the additives in the tribological strata of the gears |
|---|---|
| Original language | German |
| Pages (from-to) | 29-35 |
| Number of pages | 7 |
| Journal | Tribologie und Schmierungstechnik |
| Volume | 58 |
| Issue number | 2 |
| Publication status | Published - Mar 2011 |
Abstract
A discussion covers an experimental study involving Time of Flight-Secondary Ion Mass Spectrometry (ToF-SIMS) analysis of additive and substrate signals as a function of substrate temperature with respect to frictional loads in gearing as a function of the strata boundary layer structure of a fully additivated lubricant. The additives included zinc dialkyl dithio phosphate (ZDDP) and calcium sulfonate. Discussion topics include introduction; test preparation and analysis conditions; mass spectrometric analysis of thermally formed additive layers; temperature dependence of additive binding; thermal stability of surface films; mass spectrometric analysis of tribologically purposed additive films; residual friction studies with high lateral resolution; synchronization components in continuous connection tests; and summary. The simultaneous behavior of both additives versus temperature and at the beginning of formation of phosphate glass films was analyzed. Temperature programmed Secondary Ion Mass Spectrometry (TP SIMS) indicated that a short time immersion in gear oil yielded a stable phosphate glass film that was less contaminated with sulfur than after a lengthy immersion in heated oil. For the study of temperature dependent binding of surface active additives and the thermal stability of the films thus formed, steel substrates 10 by 10 sq mm, 1 mm thick) were used that had been prepared by immersion in an oil bath. After 96 hr immersion at 130°C in the gear oil, a 100 nm thick thermal phosphate glass film formed. Two approaches were taken to study sliding friction generation of tribological films. One involved use of a table drill machine with integrated thermal oil bath to study varying sliding friction loads, single and multiple friction processes as a function of additive binding and formation of tribofilms. The counter body in the drill lining was brass. To study boundary layers formed upon 100,000 frictional loadings a steel cone and brass synchronous ring with trapezoidal thread was used. The overall study showed that ToF-SIMS serves real systems well and can be of use in further development of materials and material combinations and in the design of tribo-systems.
ASJC Scopus subject areas
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Materials Science(all)
- Surfaces, Coatings and Films
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In: Tribologie und Schmierungstechnik, Vol. 58, No. 2, 03.2011, p. 29-35.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Oberflächenanalyse der aus additiven gebildeten tribologischen schichten mit der flugzeit-sekundärionenmassenspektrometrie
AU - Lipinsky, Dieter
AU - Brüning, Christoph
AU - Mayer, Christoph
AU - Arlinghaus, Heinrich Franz
AU - Skubacz, Tobias
AU - Poll, Gerhard
PY - 2011/3
Y1 - 2011/3
N2 - A discussion covers an experimental study involving Time of Flight-Secondary Ion Mass Spectrometry (ToF-SIMS) analysis of additive and substrate signals as a function of substrate temperature with respect to frictional loads in gearing as a function of the strata boundary layer structure of a fully additivated lubricant. The additives included zinc dialkyl dithio phosphate (ZDDP) and calcium sulfonate. Discussion topics include introduction; test preparation and analysis conditions; mass spectrometric analysis of thermally formed additive layers; temperature dependence of additive binding; thermal stability of surface films; mass spectrometric analysis of tribologically purposed additive films; residual friction studies with high lateral resolution; synchronization components in continuous connection tests; and summary. The simultaneous behavior of both additives versus temperature and at the beginning of formation of phosphate glass films was analyzed. Temperature programmed Secondary Ion Mass Spectrometry (TP SIMS) indicated that a short time immersion in gear oil yielded a stable phosphate glass film that was less contaminated with sulfur than after a lengthy immersion in heated oil. For the study of temperature dependent binding of surface active additives and the thermal stability of the films thus formed, steel substrates 10 by 10 sq mm, 1 mm thick) were used that had been prepared by immersion in an oil bath. After 96 hr immersion at 130°C in the gear oil, a 100 nm thick thermal phosphate glass film formed. Two approaches were taken to study sliding friction generation of tribological films. One involved use of a table drill machine with integrated thermal oil bath to study varying sliding friction loads, single and multiple friction processes as a function of additive binding and formation of tribofilms. The counter body in the drill lining was brass. To study boundary layers formed upon 100,000 frictional loadings a steel cone and brass synchronous ring with trapezoidal thread was used. The overall study showed that ToF-SIMS serves real systems well and can be of use in further development of materials and material combinations and in the design of tribo-systems.
AB - A discussion covers an experimental study involving Time of Flight-Secondary Ion Mass Spectrometry (ToF-SIMS) analysis of additive and substrate signals as a function of substrate temperature with respect to frictional loads in gearing as a function of the strata boundary layer structure of a fully additivated lubricant. The additives included zinc dialkyl dithio phosphate (ZDDP) and calcium sulfonate. Discussion topics include introduction; test preparation and analysis conditions; mass spectrometric analysis of thermally formed additive layers; temperature dependence of additive binding; thermal stability of surface films; mass spectrometric analysis of tribologically purposed additive films; residual friction studies with high lateral resolution; synchronization components in continuous connection tests; and summary. The simultaneous behavior of both additives versus temperature and at the beginning of formation of phosphate glass films was analyzed. Temperature programmed Secondary Ion Mass Spectrometry (TP SIMS) indicated that a short time immersion in gear oil yielded a stable phosphate glass film that was less contaminated with sulfur than after a lengthy immersion in heated oil. For the study of temperature dependent binding of surface active additives and the thermal stability of the films thus formed, steel substrates 10 by 10 sq mm, 1 mm thick) were used that had been prepared by immersion in an oil bath. After 96 hr immersion at 130°C in the gear oil, a 100 nm thick thermal phosphate glass film formed. Two approaches were taken to study sliding friction generation of tribological films. One involved use of a table drill machine with integrated thermal oil bath to study varying sliding friction loads, single and multiple friction processes as a function of additive binding and formation of tribofilms. The counter body in the drill lining was brass. To study boundary layers formed upon 100,000 frictional loadings a steel cone and brass synchronous ring with trapezoidal thread was used. The overall study showed that ToF-SIMS serves real systems well and can be of use in further development of materials and material combinations and in the design of tribo-systems.
UR - http://www.scopus.com/inward/record.url?scp=80052414672&partnerID=8YFLogxK
M3 - Artikel
AN - SCOPUS:80052414672
VL - 58
SP - 29
EP - 35
JO - Tribologie und Schmierungstechnik
JF - Tribologie und Schmierungstechnik
SN - 0724-3472
IS - 2
ER -