Cold Fussion wrote: ↑
Sun Jun 21, 2020 5:37 pm
humble sabot wrote: ↑
Wed Jun 10, 2020 7:48 am
It's been very common on f1 cam shafts as well.
The nicest thing about it is that it's harder than most low friction coatings, even Ti nitride. The hardness of the coating only gets you so far, the rest of the system has to be well engineered too.
Do these coatings change the material hardness significantly? I would have thought the hardness would be more a function of the base material since the nano coatings are so thin.
Depends on the scale (scale as in size) you are measuring on. Micro scale hardness will increase dramatically (e.g. scratch resistance), but large scale hardness would hardly be affected (so same as base material hardness,
hammer would leave same size dent).
I guess exactly as you thought it would be.