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I Don’t Know Why Women Keep Laughing at Me When I’m Out Driving my Tesla Cybertruck
(www.torquenews.com)
this post was submitted on 28 Oct 2024
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I thought they were all plain metal. I wonder if it was a custom paint job.
Many will opt to get a custom wrap because the steel could get scratched and start rusting, plus they are buying for clout and are now in too deep to stop throwing money away on making it "look" better.
Some have also opted into getting a third party service to chemically deposit a layer of gold on the surface of the steel. Making it an even bigger money sink for little benefit and basically not worth driving around almost at all except for showing off.
It doesn’t rust.
Iron particles in the air land on the bare stainless steel, react with it, and rust. It’s the iron particles rusting, not the steel itself. This is called 'fallout,' and it mostly comes from brake rotors. It contaminates the surface of all vehicles and needs to be removed, but with paint and clearcoat in between, this reaction doesn’t happen. The 'rust' on Cybertrucks is just surface contamination that can be cleaned off. If you left a bunch of modern cars out in the rain for 100 years, the Cybertruck would likely be the only one with anything left of it.
There's plenty to criticise the Cybertruck for but spreading this rusting myth is dishonest.
I have an MS in mechanical engineering focused in materials and I wrote a few papers on 3d printing of stainless tool steels. I've read further down the thread and you are completely wrong.
It's rusting because it's a low grade stainless. Its low grade because stainless steel work hardens when bent or machined. Lower grades have less issues with work hardening. They made this choice to save on tooling costs I assume.
Work hardening is when you permanently deform a material it gets more brittle. Stainless is an unbelievably stupid choice for a vehicle body because it needs to be formed into complex shapes which require lots of deformation. It's why SS cars feature mostly large flat panels and also partially why we have been moving towards aluminum body panels.
What am I completely wrong about exactly? I haven't made any claims about the quality of the steel.
Most of the articles I find when googling about the rusting points towards iron particles.
The lower the grade the faster it rusts. Forgot most people don't know that. Its rusting because there is iron in steel (duh). It's rusting quickly because it has low concentration of rust inhibitors like chromium or nickel. Increasing the concentration of these metals makes it rust slower. It also makes it harder to tool into a car body, making it a shifty choice for a car shell.
The article you linked is either uninformed or being misleading about "free iron". That just means there are no rust inhibitors so they are leaving free energy available on the surface of an iron grain at the surface of the material. This makes it rust quickly where those grains are. There are millions of these grains at the surface where the metal interfaces with air. The iron particles are in the body panel, not on top of it.