Dry sliding friction behaviour of ALCRN and tin coating
This thesis examine the friction and wear behaviour of AICrN and TiN PVD coatings using the ball-on-disc and reciprocating tests. Comparative study on the coatings in air and vacuum environment was aimed to provide important insight on the effect of oxidation on the friction behaviour of the coat...
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| Main Authors: | , , |
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| Format: | Research Report |
| Language: | English |
| Published: |
Universiti Malaysia Sabah
2012
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| Subjects: | |
| Online Access: | https://eprints.ums.edu.my/id/eprint/22843/1/Dry%20sliding%20friction%20behaviour%20of%20ALCRN%20and%20tin%20coating.pdf https://eprints.ums.edu.my/id/eprint/22843/ |
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| Summary: | This thesis examine the friction and wear behaviour of AICrN and TiN PVD coatings
using the ball-on-disc and reciprocating tests. Comparative study on the coatings in
air and vacuum environment was aimed to provide important insight on the effect
of oxidation on the friction behaviour of the coatings. Other important factors such
as load, sliding velocity and temperature effects on the coatings were also
investigated. In the ball-on-disc tests carried out in vacuum, (i) TiN gave lower COF
than AICrN, showing that the surface of TiN was more lubricous, and (ii) the COF of
both coatings were lower than that produced in air. In ambient air, AICrN gave
lower COF than TiN with high wear debris retention on the sliding interface due to
the effect of oxidation. In the reciprocating tests, increasing the temperature from
room temperature to 150°C resulted in a reduction in the COF. Higher nominal
load resulted in lower COF while higher speed resulted in higher COF |
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