Quote:
Originally Posted by Logic
1: Aren't we..?
Take a look at the top graph: see the fully formulated oil vs 5% BA + surfactant.
Also NB the Wear bar chart.
I'm posting similar graphs of wear too.
2: IF
no high points ever touched
THEN
Engines would never wear out.
Is that in fact what you are saying?
3: The 'Lasts For Ever Engine' in 2 again.
4: So you're saying it's 'The Bomb' in gearboxes and differentials?
Looking at the pitting comparison:
Does it look like other anti corrosion chemicals are necessary to you?
The why:
On the left is Iron when its just started rusting but is still shiny. ie: The factory finish.
On the right is BA attached to that oxide layer.
Air being air, what do you suppose the oxide layer on other metals looks like..?
Don't forget the 'pack of playing cards' BA above that ceramic layer filling in any asperities.
And keep in mind that should that chemically inert protective layer with 80% the hardness of diamond get scraped off;
it becomes BA again and re-reacts with the newly exposed surface in a self renewing cycle. |
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Is this page-37 from Erdemir's 2013 report, Re. University of Arkansas, table-top steel block-on-ring rest?
If so, YES, it's a 'fully-formulated SAE 5W-30 motor oil, but it's yet to be tested under ASTM Sequence tests in a 'fired' engine, in a dynamometer test cell.
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Or, page-38, with 'full passenger car package, plus 0.5% BA', @ mu= 0.10- 0.12 ( same or worse than a common industrial roller -bearing ) table-top test, with some blends 'agglomerating into larger chunks ?
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As of 2011, when they 'ended' their research, no one had tested it in an automotive engine ( on page-27 Dr. Erdemir writes that they had 'an interest
for automotive application', but they never got that far ( they were just conducting ' Initial screening studies').
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I'll address your other 'dead-end' questions when I complete my library materials.