What are the main tribological parameters for sliding and impact abrasion mechanisms, other than initial material hardness controlling the wear behavior ?
In addition to material hardness the surface quality (finish) also effects the wear behaviour
For sliding wear, majorly, consider the interrelationship between1)applied load, 2)sliding velocity, 3)path radious and 4) path texture. Minorly can interrelate with sliding distance, pin and disc materias
for impact abrasion : 1) type of abrasion materials/erodant, 2) erodaant impact rate, 3) eroded materials hardness, 4)impact angle , 5)test emperature
Would like to add temperature , lubricant if any also has effect on the tribological properties.
Many variables can affect the mechanism and kinetics of wear of sliding surfaces such as: normal load, sliding speed, surface geometry, relative surface movement, surface roughness, type of material, hardness of material, vibration, third body particles and their characteristics, temperature, lubrication (chemical interaction between AW/EP additives and surfaces and formation of a structural layer, etc.).
Dear Zia,
Our recently published study (open access, still in pre-proof) gives a good understanding on the role of microstructure on wear mechanisms (abrasion, delamination, oxidative, etc).
Please see the link below:
https://www.sciencedirect.com/science/article/pii/S0264127520306110?via%3Dihub
Best regards,
Mohanad
Formation of mechanically mixed layer during wear is also affecting material properties
Dear Zia,
Besides the surface hardness of materials, the fracture toughness can also play a crucial role in the wear behaviour of materials, especially for ceramics. On the other hand, if you have layered surface such as a coating on a substrate, the difference in their elastic properties (i.e Young's moduli) and their CTE's are also effective parameters for controlling wear performance.
Best Regards,
Manny parameters may effect the wear behaviour of your samples, like, the applied normal load, surface roughness, contact temperature and pressure, contacte humidity...etc.
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