Abstract
A new experimental capability for elevated temperature nanoscale friction measurement is described. Its stability and resolution were demonstrated in two case studies up to 750 °C. A stainless steel probe was used to study friction between steel and glass at 25, 200 and 400 °C. Friction forces were calibrated at temperature. The friction coefficient increased between 25 and 200 °C, but stickslip was dominant at 400 °C due to chemical interaction between the stainless steel probe and the glass. This was verified by scanning Energy Dispersive X-ray Spectroscopy analysis. A WCCo probe was used to study friction on a range of TiN-based and Cr54Al20C26 (so named MAX-phase composition) coatings at 25, 400 and 750 °C. A maximum in friction coefficient was observed at 400 °C. The decrease in friction at 750 °C was associated with the formation of lubricating surface oxides and oxidation- associated surface roughening.
| Language | English |
|---|---|
| Pages | 455-463 |
| Number of pages | 9 |
| Journal | Tribology Letters |
| Volume | 49 |
| Issue number | 3 |
| Early online date | 13 Jan 2013 |
| DOIs | |
| Publication status | Published - 1 Mar 2013 |
| Externally published | Yes |
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Nanoscale Friction Measurements Up to 750 °C. / Smith, J. F.; Vishnyakov, V. M.; Davies, M. I.; Beake, B. D.
In: Tribology Letters, Vol. 49, No. 3, 01.03.2013, p. 455-463.Research output: Contribution to journal › Article
TY - JOUR
T1 - Nanoscale Friction Measurements Up to 750 °C
AU - Smith, J. F.
AU - Vishnyakov, V. M.
AU - Davies, M. I.
AU - Beake, B. D.
PY - 2013/3/1
Y1 - 2013/3/1
N2 - A new experimental capability for elevated temperature nanoscale friction measurement is described. Its stability and resolution were demonstrated in two case studies up to 750 °C. A stainless steel probe was used to study friction between steel and glass at 25, 200 and 400 °C. Friction forces were calibrated at temperature. The friction coefficient increased between 25 and 200 °C, but stickslip was dominant at 400 °C due to chemical interaction between the stainless steel probe and the glass. This was verified by scanning Energy Dispersive X-ray Spectroscopy analysis. A WCCo probe was used to study friction on a range of TiN-based and Cr54Al20C26 (so named MAX-phase composition) coatings at 25, 400 and 750 °C. A maximum in friction coefficient was observed at 400 °C. The decrease in friction at 750 °C was associated with the formation of lubricating surface oxides and oxidation- associated surface roughening.
AB - A new experimental capability for elevated temperature nanoscale friction measurement is described. Its stability and resolution were demonstrated in two case studies up to 750 °C. A stainless steel probe was used to study friction between steel and glass at 25, 200 and 400 °C. Friction forces were calibrated at temperature. The friction coefficient increased between 25 and 200 °C, but stickslip was dominant at 400 °C due to chemical interaction between the stainless steel probe and the glass. This was verified by scanning Energy Dispersive X-ray Spectroscopy analysis. A WCCo probe was used to study friction on a range of TiN-based and Cr54Al20C26 (so named MAX-phase composition) coatings at 25, 400 and 750 °C. A maximum in friction coefficient was observed at 400 °C. The decrease in friction at 750 °C was associated with the formation of lubricating surface oxides and oxidation- associated surface roughening.
KW - High temperature friction
KW - Nanoscale friction
KW - Roughness
UR - http://www.scopus.com/inward/record.url?scp=84892849820&partnerID=8YFLogxK
U2 - 10.1007/s11249-013-0102-5
DO - 10.1007/s11249-013-0102-5
M3 - Article
VL - 49
SP - 455
EP - 463
JO - Tribology Letters
T2 - Tribology Letters
JF - Tribology Letters
SN - 1023-8883
IS - 3
ER -