Ferrari Power Unit Hardware & Software

[PlatinumZealot]

thermal conductivity is better - that's the whole point of sintered copper steels !

http://www.scielo.br/img/revistas/mr/v1 ... 6-gf12.jpg

Tell me the alloy that you are thinking of for the pistons...

How would this stuff work? AKA Iron Man's suit material
https://phys.org/news/2016-07-lab-titan ... teels.html

Oh, ha. I really meant what copper steel alloy you would use. I was going to look on its properties.

[roon]

Tell me the alloy that you are thinking of for the pistons...

How would this stuff work? AKA Iron Man's suit material
https://phys.org/news/2016-07-lab-titan ... teels.html

"We published a study not long ago on titanium-gold, a 1-to-1 ratio compound that was a magnetic material made from nonmagnetic elements."

What causes this?

[godlameroso]

High temperatures I guess. All sorts of wacky things happen at high frequency energy, you can turn cobalt into highly radioactive metal. Smelting alloys at high temperatures can have emergent properties, maybe it's as simple as the same reason NOx is produced during high combustion temperatures.

[ncassi22]

"We published a study not long ago on titanium-gold, a 1-to-1 ratio compound that was a magnetic material made from nonmagnetic elements."

What causes this?

https://newatlas.com/turning-non-magnet ... tic/38805/

[63l8qrrfy6]

thermal conductivity is better - that's the whole point of sintered copper steels !

http://www.scielo.br/img/revistas/mr/v1 ... 6-gf12.jpg

Tell me the alloy that you are thinking of for the pistons...

They go by different names depending on the supplier - I can't name any off the top of my head. I don't have any Mahle or FM catalogues at hand but the alloys I am talking about are low alloy (5% max or so ) powder metal steels Fe-Cu-C with trace Ni and Mo and ferritic/pearlitic structure. Normally they have some form of solid lubricant (since they are primarly used for valve seats) but of course those would not be needed in a piston.
Thermal conductivity is up to 50W/mK.

I'll have a look tomorrow at work.

Edit - found this:
http://www.gkngroup.com/hoeganaes/media ... Steels.pdf

It says that endurance strength for Fe-Cu-C alloys is about 130 MPa at room temperature. By comparison one of Mahle's strongest piston Al alloys (Mahle 142) has between 90-130 MPa endurance strength at room temperature dropping to as low as 30-50 MPa at 350 °C. I haven't found high temperature Fe-Cu-C properties but I bet it won't decrease anywhere near as much as Al.
Bear in mind though it needs to be about 3 times stronger than Al to be viable..

[godlameroso]

I'm just waiting for the cars to run on knock once and for all.

[roon]

I'm just waiting for the cars to run on knock once and for all.

I have similar suspicions:

How problematic is knock & detonation when the air-fuel charge is so lean and stratified? If the fuel does ignite prematurely it will be localized. I suspect detonation can be incorporated into regular operation and be rendered irrelevant. Maintaining separation of the fuel-air charge from non-combustion air (I'll call this NCA; maybe there's another established term) is the trick. NCA or delineated CC volumes will absorb/withstand detonation, ignition and pre-ignition of the fuel-air charge. Timing, inclusion or disclusion of those events is important but only for performance, not durability or catastrophic failure of the componentry (my guess).

They’ve become far removed from road car technology; they’re effectively turning into diesel engines in some cases. http://en.f1i.com/news/284084-horner-br ... -asap.html

[godlameroso]

How about one of these as a spark plug

[PlatinumZealot]

thermal conductivity is better - that's the whole point of sintered copper steels !

http://www.scielo.br/img/revistas/mr/v1 ... 6-gf12.jpg

Tell me the alloy that you are thinking of for the pistons...

They go by different names depending on the supplier - I can't name any off the top of my head. I don't have any Mahle or FM catalogues at hand but the alloys I am talking about are low alloy (5% max or so ) powder metal steels Fe-Cu-C with trace Ni and Mo and ferritic/pearlitic structure. Normally they have some form of solid lubricant (since they are primarly used for valve seats) but of course those would not be needed in a piston.
Thermal conductivity is up to 50W/mK.

I'll have a look tomorrow at work.

Edit - found this:
http://www.gkngroup.com/hoeganaes/media ... Steels.pdf

It says that endurance strength for Fe-Cu-C alloys is about 130 MPa at room temperature. By comparison one of Mahle's strongest piston Al alloys (Mahle 142) has between 90-130 MPa endurance strength at room temperature dropping to as low as 30-50 MPa at 350 °C. I haven't found high temperature Fe-Cu-C properties but I bet it won't decrease anywhere near as much as Al.
Bear in mind though it needs to be about 3 times stronger than Al to be viable..

I was hoping to comparemanufacturing methods: sintered powder forged steel to wrought forged steel for mechanical properties and machinability.
Then the thermal properties material itself: sintered powder forged FeCu steel to Aluminum alloy to the wrought forged steel.

[roon]

How about one of these as a spark plug

I wonder if there's a compressed air line hidden in that assembly somewhere. Otherwise, those arcs could like create a shock wave sufficient to move that small hinged plate. I'm not sure what they're getting at in the press release besides technobabble.

[johnny comelately]

It may be worthwhile having a look at flame ignition first hand, it is a fantastic effect.
They are relatively easy to make and when you play around with timing and mixtures then whip the head off and have a look, it is a different world of combustion.
And you may find page 71 in this link very interesting (Smokey Yunick) https://books.google.com.au/books?id=bf ... ts&f=false

[godlameroso]

How about one of these as a spark plug

https://www.youtube.com/watch?v=U5PYzGgHx14

I wonder if there's a compressed air line hidden in that assembly somewhere. Otherwise, those arcs could like create a shock wave sufficient to move that small hinged plate. I'm not sure what they're getting at in the press release besides technobabble.

They pump 1 atm for a total of 2 into the chamber and then discharge the plasma. The heat expands the air and pushes the plate.

[roon]

How about one of these as a spark plug

https://www.youtube.com/watch?v=U5PYzGgHx14

I wonder if there's a compressed air line hidden in that assembly somewhere. Otherwise, those arcs could like create a shock wave sufficient to move that small hinged plate. I'm not sure what they're getting at in the press release besides technobabble.

They pump 1 atm for a total of 2 into the chamber and then discharge the plasma. The heat expands the air and pushes the plate.

A small lightning bolt will inevitably create a shock wave in a gaseous medium regardless of its internal pressure (within reason). I don't see what's unique about using sound waves, focused/exaggerated within a cylindrical container, to move a small pendulum.

[PlatinumZealot]

How about one of these as a spark plug

https://www.youtube.com/watch?v=U5PYzGgHx14

If you can get that Arc to travel across the entire cylinder and all the piston protuberances then you're in business.

[J.A.W.]

Too bad that such innovations are proscribed by the rules, & sparkplug ignition use remains a mandatory stipulation.