Hi Pankaj

Tribological tests may be carried out on a ball-on-disk tribometer in accordance with ASTM G99 -95.

The ball is placed in contact with the sample surface under a predetermined load witch generate a friction force.

You can calculate the wear rate (W) in mm3m-1 of specimens using the following equations:

W=Vdisk⁄ D                  

Where, Vdisk is the disc volume loss (mm3) and D is the sliding distance (m).

The disc volume loss:

Vdisk=2πR [r2 sin-1(d⁄2r)-(d⁄4) (4r2-d2)(1⁄2)]      

Where:  R is the radius of the wear track (mm), d is width of the wear track (mm), r is the radius of the ball (mm). 

To determine the wear track (d) you need to take micrographic images by optical microscopy

Good luck

Amine

You have a good book for this task. The name is: Wear of metal, from A.S.Sarkar, Pergamon Press.

Dear Daniel,

I have tried to search this book online but unable to get. Do you have pdf format of it ? if can you please send me?

There are many mechanisms of wear such as abrasion, erosion, ... each of this mechanisms has a different models. I think that first of all you should choose which mechanisms do you want to model, then you can search and get the better solutions.

Dear Ahad,

 There are different mechanisms such as adhesion, abrasion, fretting, fatigue etc. when I search the wear model for these mechanism all look similar such as Holm model, Burwell model, Archard model, rabinowicz abrasion, Delamination model etc. but all these model look similar irrespect of wear mechanism just only difference is number of uncertain parameters in those wear models. To reduce the complexity, Archard model is the most preferable on literature for common wear mechanism irrespective of wear mechanism Adhesion or abrasion.  let me know if you have some literature which shows each mechanism have different wear model ?.   

Dear Pankaj

I use Archard model in my master thesis, on wear behavior of liner mills, there was some special cases that abrasion wear of some martensitic liners did not obey the Archard rule. You can reed the Hutchings book (Tribology, Friction and Wear of Engineering Materials) to see some good idea, but you should be careful about the mechanisms. As I saw sliding is very different from abrasion.

Dear Pankaj,

I think that I.V.Kragelsky's model of fatigue wear is the best for you,

Excuse Pankaj. I have the book only in paper.

You can see about the book in Science Direct:

http://www.sciencedirect.com/science/book/9780080197371

Dear Jankar,.

I have the book of P. Blau in pdf format and I can send it to you, just give me your e-mail.

You can download my two papers on wear of ceramics composites. I am sure u will find ur answer there. All available on my research gate.

Good luck,

You can see any book of Russian tribologists.

For instance in: Доценко А.И., Буяновский И.А. Основы триботехники. - М.:ИНФРА-М, 2014.

Мy best wishes

It is complex. I worked on wear of polymer gears which is quite different from metals wear. In my view, you should read some papers and books to reach on the conclusion. There is no simple answer.

Hi Pankaj

Tribological tests may be carried out on a ball-on-disk tribometer in accordance with ASTM G99 -95.

The ball is placed in contact with the sample surface under a predetermined load witch generate a friction force.

You can calculate the wear rate (W) in mm3m-1 of specimens using the following equations:

W=Vdisk⁄ D                  

Where, Vdisk is the disc volume loss (mm3) and D is the sliding distance (m).

The disc volume loss:

Vdisk=2πR [r2 sin-1(d⁄2r)-(d⁄4) (4r2-d2)(1⁄2)]      

Where:  R is the radius of the wear track (mm), d is width of the wear track (mm), r is the radius of the ball (mm). 

To determine the wear track (d) you need to take micrographic images by optical microscopy

Good luck

Amine