Why Does Metal Rust? (And Why Should We Care?) | Out of Our Elements

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  • Опубликовано: 21 сен 2024

Комментарии • 117

  • @RChyshkevych
    @RChyshkevych 3 года назад +23

    Kudos to Alex for having an RHD Silvia

  • @SolaceEasy
    @SolaceEasy 3 года назад +46

    In the battle of permanence, nature prevails!

    • @hydroaegis6658
      @hydroaegis6658 3 года назад +4

      You mean physics

    • @SolaceEasy
      @SolaceEasy 3 года назад +2

      @@hydroaegis6658 No I didn't.

    • @oneshothunter9877
      @oneshothunter9877 2 года назад +2

      I think you both are right - Nature is pure physics and chemistry.

  • @Moto_Medics
    @Moto_Medics 3 года назад +21

    Clicked for the Silvia stayed for the science

  • @Kevan808
    @Kevan808 3 года назад +15

    Meanwhile here on Oahu,, Hawaii, when the state built the Aloha Stadium, they said there wasn't a need to paint it. A protective layer of rust would form. Ummm we're surrounded by salt water/ocean mist.

    • @trulyinfamous
      @trulyinfamous 3 года назад +4

      Really only copper and a few other metals do that. It forms an impermeable oxide layer, iron forms a permeable layer.
      Edit: copper will almost never degrade past the surface corrosion, aluminum can still corrode away albeit slowly, titanium isn't common, and stainless is too expensive to see widespread use in structural applications.

    • @thomasrosscmt1385
      @thomasrosscmt1385 3 года назад +1

      If it's ten-core and it's not actually in a splash zone then that is probably fine.

    • @thomasrosscmt1385
      @thomasrosscmt1385 3 года назад +2

      @@trulyinfamous No, copper isn't the only metal that does that. The whole reason stainless steel works is that the other metals in the alloy form an impermeable passivating layer. Aluminum also.

    • @trulyinfamous
      @trulyinfamous 2 года назад +1

      @@thomasrosscmt1385 I forgot about that when writing my reply, I've edited it.

  • @g00ses
    @g00ses 3 года назад +10

    SAVE THE S13s!

  • @SeanBZA
    @SeanBZA 3 года назад +10

    For the car poor surface prep, plus did not strip down to bare metal and completely cover with a chemical rust converter to make the oxide a more durable phosphate, and also do the same on the inside of the vehicle as well. First remove the rust, make the material chemically clean, and passivate with a thin chemically bonded coating, then apply the primer, make smooth, then apply the correct automotive paints, and finish with the clear top coat. Has to be done both top and inside, though the inner section under the lining you do not have to bother with looking perfect, so it is faster there.

  • @janrubia4427
    @janrubia4427 3 года назад +14

    Great video! I hope they do an episode about copper next time.

  • @realBeltalowda
    @realBeltalowda 3 года назад +17

    Part of the problem is the fabrication process is performed in oxygen filled rooms so the pieces always have a base coating of oxidation.
    Producing the pieces in facilities filled with inert gases or in a vacuum would prevent that problem and prolong the lifetimes of coated metal pieces.

  • @Beryllahawk
    @Beryllahawk 3 года назад +4

    Within the first minute:
    I felt my soul shrivel up a little bit at "my car is almost as old as I am" and then it's a 1991 vehicle and I'm just....just... Let's just say I'm definitely a fecking antique at 44 years old...
    However I also busted up laughing at the immediate silliness, so that rehydrated my poor old self a lil bit haha
    It's fascinating to me that the repair shop fellow called the rusted metal "infected," especially because of the continuing similarity to something we humans have to handle too...
    I've become unfortunately very familiar with osteomyelitis - that is, Bone Infections. These can happen to anybody but they're super common for diabetics, as a frequent complication of injuries a diabetic might find themselves having to deal with. My husband has had almost a dozen surgeries trying to chase down and "cut out" bone infection - he is now missing one of his feet, because the doctors simply had no choice, they had to go that far to get to bone that wasn't infected. Sadly you can't just fabricate new parts for human bodies with the same simplicity you can for car bodies. But the concept is very similar I think because the rust can "hide" as you showed here - those spots of rust are UNDER the new paint! That's just about exactly what we faced over and over again with my husband's bone infection. Scary.

    • @brianisme6498
      @brianisme6498 3 года назад

      Bruh it’s a skit. No car repairman calls a rust an infection. Also this isn’t Quora. You don’t need to boast about in intellect in an absurdly long comment.

    • @Zaihanisme
      @Zaihanisme 3 года назад

      @@brianisme6498 why are you so insufferable? You don’t know every repairman, so it's a pretty bold claim to say none would use "infected" to describe rust. Also, what the fuck in her comment is even a brag?

  • @pbreedu
    @pbreedu 2 года назад

    I bought this rusty wheel barrow about 15 years ago at a garage sale for $3. I still use it despite the hole rusted in it. What I love about it is I don't have to chain it up because no one bothers stealing it. I am amazed it lasted this long.

  • @vitorhugo2331
    @vitorhugo2331 3 года назад +3

    I loved this video
    Thanks PBS

  • @dediKtion1986
    @dediKtion1986 Год назад

    Here is an interesting tidbit on rust that wasn't mentioned here that makes replacing really old infrastructure a bit more complicated. Metal made before the 1940s was much more resistant to rust. As an unforeseen impact Of the Manhattan Project + all other subsequent nuclear testing and the improper recycling of affected radioactive metals, the resistance of corrosion metals have compared to before the 1940s is greatly reduced

  • @endarior
    @endarior 3 года назад +2

    That is one sweet s13

  • @Rampage0303
    @Rampage0303 3 года назад +8

    Ah, I was hoping to hear more about the methods of rust prevention and resistance.

    • @angelicamartacahyaningtyas9083
      @angelicamartacahyaningtyas9083 3 года назад +1

      Same here. Their other videos usually contain more information than this one.

    • @whatelseison8970
      @whatelseison8970 2 года назад

      The process of bluing metal; in particular gun metal may be of interest to you. As I understand it, the process rapidly oxidizes the surface layer then converts the red iron oxide, which is soft and highly porous to black iron oxide which is more like a ceramic material.
      In general it's a type of surface passivation. Several non-corroding metals like aluminum are actually highly reactive -- much more so than iron but upon contact with air they naturally form robust surface passivation. In the case of aluminum the passivation layer is essentially sapphire so even a few nanometers is enough. Salt (chlorides actually) or alkali can still attack it though.

    • @Rampage0303
      @Rampage0303 2 года назад

      @@whatelseison8970 Interesting! They should make a video on that one. I am mostly familiar with galvanization, electroplating or alloying.

  • @rosetown_
    @rosetown_ 2 года назад +1

    I'm wondering the same as some people already mentioned why don't we make more use of metals that don't rust. Or use more materials that are not metal such as: carbon fiber, graphene, or thermoplastics / thermosets examples polycarbonate, fiberglass.

  • @patricialessard8651
    @patricialessard8651 3 года назад +4

    Maybe some day we will find an element or chemical that when mixed with Iron will make it really rust proof. We can only hope and experiment. Thank you for that very interesting video!

    • @ninjaguysith
      @ninjaguysith 3 года назад +3

      Stainless steel.

    • @trulyinfamous
      @trulyinfamous 3 года назад +2

      Stainless steel, but that stuff is much more expensive than typical structural steel.

  • @j7ndominica051
    @j7ndominica051 Год назад

    Why do some iron alloys are more prone to rust than others when neither is stainless? I have a meat grinder with a replacement bolt for holding the handle in place. If the bolt gets wet it rusts quickly, but the rest of the grinder doesn't even in places where any coating has been rubbed off.

  • @AnimilesYT
    @AnimilesYT 3 года назад +27

    Does the infrastructure remake mean that the US is finally going to move away from the inconvenience of a car dependent infrastructure?

    • @SeanBZA
      @SeanBZA 3 года назад +14

      No, too many big players who want to keep the status quo intact. Short term good for them, long term your grandchildren will be the ones having to deal with it, with those that profited from it either long gone, or wealthy enough not to care.

    • @Beryllahawk
      @Beryllahawk 3 года назад +1

      I expect that we will still need cars and such for industrial purposes even if - do we call it "domestic use?" - anyway, whether the average person has a car or not, they're still going to depend on trucks that bring in food to their grocery stores, and public transit of many sorts still relies on gas powered vehicles. Reducing our reliance on such vehicles is certainly a goal worth pursuing! But it's never going to be possible to eliminate it, I don't think. And in the case of the USA in particular... there will always be a big need for things like the Interstate system. Without that, I think about half the nation would be almost inaccessible... Certainly the Interstate and State Highway systems made every single one of my summer trips possible when I was a kid out in western Texas. And later, those roads made it possible for my family to relocate.
      With all the costs and problems that come with roads, it's also undeniable that we NEED them. And it might be one of those questions - "the chicken or the egg" - did we become dependent because we had the roads, or did we create the roads because the need was already huge and it just didn't go away? Or was there some confluence of issues and events that joined forces as it were, and put us in this current situation?
      Lots of factors contribute to this and I am really glad that these videos - this whole channel - provokes questions like yours! It makes me happy to think on it and see that there are possibilities alongside the problems.

    • @AnimilesYT
      @AnimilesYT 3 года назад +4

      @@Beryllahawk I do agree that cars will have to stay part of our infrastructure. The thing I was mainly speaking of was car dependence. I can get groceries on the bike and get there in 5 minutes. I can also get into the city to go to work by bike. If the weather isn't great I take the train and a bus though. But to visit family somewhere else in the country I'll use the car.
      If people do their daily commute by public transport or other means of transportation then there will be way less cars on the roads. This makes everything more convenient for everyone.
      Having cars isn't a bad thing. They're really practical to move stuff and to get to places quickly. But having too many of them and being dependent on a car to do practically anything (as is the case in the US) then it will make everything very inconvenient.
      City Beautiful and Not Just Bikes, along with some other channels, made videos that answer your chicken and egg question. It is a lot more complicated than the few questions you've asked. It even goes as far as racism. But most of it is about bad city planning. Many places in Europe have a big focus on cars, but aren't car dependent. Not everyone can afford a car or can use a car, so making everything car dependent is not an option here, and I think it shouldn't be an option anywhere.
      Anyway, it's very late and I'm tired and rambling. So i'm sorry if I don't make any sense or if I misunderstood some things you said. Hopefully I can think a bit better tomorrow xD

    • @janmelantu7490
      @janmelantu7490 3 года назад

      I wish, but the current plan still has a lot of car-centric policy. It’s got more rail & transit funding than most previous plans tho

    • @thomasrosscmt1385
      @thomasrosscmt1385 3 года назад +1

      The U.S. puts a lot of local control on municipalities, so it will only ever go car-independent town by town. And zoning departments are notoriously sclerotic.

  • @elementkx
    @elementkx 2 года назад +1

    Alex just flexin. LOL

  • @ClintochX
    @ClintochX Год назад

    Very educational. Thanks

  • @rubya.8824
    @rubya.8824 3 года назад +2

    Why is Zinc used as the coating? Aluminum makes a self passivating layer, but I wonder if it doesn’t make a good contact?
    I also thought that steel alloys with chromium are rust resistant, but is this false?
    Thanks for the great videos!

    • @SeanBZA
      @SeanBZA 3 года назад +1

      Zinc is used because it is easy to deposit onto surface of steel and steel alloys, and it is a reactive metal that forms an oxide coating as well. You do get aluminium coated steel, but it is a much more expensive coating, as you have to apply it in an inert atmosphere. Zinc you can apply to clean bare steel in an open bath, either by immersing the cleaned and acid etched steel into a bath of molten zinc, or by using electrochemistry to apply it in an electrochemical cell from a zinc anode, using a zinc chloride in water solution.
      Aluminium you can do neither, the melting point is too high to have it out in the atmosphere, as it will catch fire, and in water it is too reactive. Thus you have to apply as a coating via sputtering in a relatively high vacuum, running a cleaned steel sheet from a roll to another in the vacuum.
      Chrome and it's alloys with steel work, but rely on the formation of a chromium oxide layer to passivate the surface. Thus stainless steels, but they are all slowly going to corrode as the thin surface layer wears, and are not really suited for salt water use, or near the ocean, as the saltchemically reacts with the coating to dissolve it with time. Any chloride will do it, so even road salt will slowly erode it away.

  • @humanrightsadvocate
    @humanrightsadvocate 2 года назад

    1. Metal doesn't rust. Only iron rusts. It's a form of oxidation.
    2. There are metals that don't rust, or don't even oxidize under conditions in which iron would rust. We call those metals PRECIOUS METALS.

  • @johnthetoolmanchess8932
    @johnthetoolmanchess8932 Год назад

    Look to give you guys a heads up. Rust is a very slow reaction so you know it’s only really a problem if you live at the coast then you need to put some prevention in because Rust will build up very quickly, but if you live in dry areas and inland, you can have bits of steel outside for a few years and it only just damages the surface layer I’ve got big steel plates that are 2 inches and 3 inches thick and they’ve been outside for a few years and they just got surface rust layer of discolouration but no major penetration damage of the rust probably less than 1 mm if that it’s more the appearance of the plate looks awful. Also guys it depends on the thickness of the steel see when it comes to stuff like cars they made out of paper thin metal. They rust through pretty quickly once it starts in a matter of a year or a few years depending on the environment, you live at. Also ships that sail across sea once the paint layer Wears off or the zinc. Bars have corroded away Steel Will Rust pretty quickly to? But in reality, if you have blocks of steel outside in your backyard and you live in inland Australia or inland in a country that you live at Rust is not going to destroy the block of steel in your lifetime it’s such a slow reaction. Also, iron and Steel are pretty much almost the same thing. Steel is just the alloy of iron. It’s just a little bit of carbon added to iron and small traces of other metals to depending on the grade of steel.

  • @DereC519
    @DereC519 Год назад

    thanks

  • @saltdaemon4453
    @saltdaemon4453 2 года назад

    I feel ya brother... my daily driver is as old as me and upstate NY isn't easy on either of us.

  • @blender_wiki
    @blender_wiki 2 года назад

    Nice vidéo but you must pay attention at the audio quality because is quite bad and really not at the lever that we are used at PBS

  • @0HARE
    @0HARE Год назад

    Neil Young called it.
    The stuff never sleeps.

  • @jammbbs1688
    @jammbbs1688 3 года назад +2

    I've actually been doing research on sickle cell anemia because the mutated hemoglobins become hydrophobic causing water to be repelled this in turn makes the iron unable to attract oxygen which in turn causes the person with SCA to not have the proper blood oxygen saturation I feel if we could replicate what causes those spacific cells to do this we could not only possibly find a way to treat or cure SCA but also a way to synthetically make this chemical and apply it to steel and iron objects my other ideas to combat rust involves a vacuum chamber filled with oils and forging these steel or iron parts within these high pressure oil vats but the latter choice would be extremely dangerous

    • @elgracko
      @elgracko 2 года назад

      is it because the hemoglobin protein is misfolded, it's a genetic condition no?

    • @jammbbs1688
      @jammbbs1688 2 года назад +1

      @@elgracko it's misshapend due to lack of water inside the hemoglobin it's self which can also cause blood clots

    • @jammbbs1688
      @jammbbs1688 2 года назад +1

      @@elgracko but yes it's a genetic issue that's only effect places where malaria is high in number and it only effects black people but the super power of SCA is the ones infected with SCA can't get malaria if they tried there hardest to get ot

    • @elgracko
      @elgracko 2 года назад

      @@jammbbs1688 , so it could be seen as some sort of evolutionary adaptation?
      that seems interesting,
      do syntoms generally onset after or around child bearing **years or mostly before that?

    • @elgracko
      @elgracko 2 года назад

      @@jammbbs1688 , also, yeah, is gene therapy an option?

  • @cyankirkpatrick5194
    @cyankirkpatrick5194 2 года назад

    Sand so I've heard also rusts so what do you recommend .

  • @kennyhill2678
    @kennyhill2678 2 года назад

    While you're driving in snow, rock salt and calcium chloride are eating your car

  • @apocalypse487
    @apocalypse487 3 года назад

    Is it detective week in PBS Studios?

  • @elgracko
    @elgracko 2 года назад

    so it's not a reversible reaction, through electrolysis or something?

  • @AustinPerdue
    @AustinPerdue 3 года назад +1

    Nice car.

  • @iZigXD
    @iZigXD 2 года назад

    meanwhile all the carguys clicking this video for the sick '91 Nissan Silvia K's

  • @jammbbs1688
    @jammbbs1688 3 года назад

    Interesting fact a way to actually fight rust on old firearms is done by boiling all metal parts in water using a carting wheel you knock off the converted rust and then leave the parts in a kerosene bath fully submerged for a day then take out blast dry with air oil all parts and put back together it will not make it look new it only stops the decay from going further

  • @joshuapepito8581
    @joshuapepito8581 2 года назад

    What if we just reapply the coatings before they disappear instead of waiting for the metal to rust and be replaced?

  • @karomel7
    @karomel7 3 года назад

    Clicked because of s13 on thumbnail

  • @m10538
    @m10538 3 года назад +5

    I thought an episode about rust would be boring. And I was right. 😴

    • @kevincronk7981
      @kevincronk7981 3 года назад +2

      Honestly I agree, it would've been better if they went into more of the chemistry behind it all, but even then rust isn't a very interesting topic

    • @m10538
      @m10538 3 года назад +1

      @@kevincronk7981 Exactly. More details about electron orbits and whatnot would have been nice. The main point of this video seems to be that old rusty bridges need to be replaced. Ugh, sure, yeah. Duh! Boring! I'm watching science shows to see secrets of nature revealed, not watch someone doing routine maintenance!

  • @rajivgobardhan1566
    @rajivgobardhan1566 2 года назад

    My s14 is rusting out also brother:(

  • @adrianchristopherx
    @adrianchristopherx 3 года назад +1

    Reminds me of RMS Titanic...RIP

  • @humansmene
    @humansmene 3 года назад

    to be honest i came here because of the silvia in the thumbnail

  • @Barnardrab
    @Barnardrab 2 года назад +1

    Is it possible to replace metal entirely? What if we made our cars and bridges out of carbon nanotubes or graphene?

    • @ambergris5705
      @ambergris5705 2 года назад

      It's not yet feasible because of cost. And carbon will decay in its own way, it also has different properties than metal, which does not automatically make it the best option (think heat/cold resistance, ductility and elasticity, shock resistance, etc.)

  • @平和-v1z
    @平和-v1z 3 года назад

    Paris: "Finally, a worthy opponent!"

  • @naufalap
    @naufalap 2 года назад

    I like to think of the presidents' statements as foreshadowing for city design overhaul, but who am I kidding

  • @bcraiders11
    @bcraiders11 2 года назад

    Clean car. Darn rust making stuff old

  • @WilhelmDrake
    @WilhelmDrake 2 года назад

    So, what's the price of a life in these cost-benefit calculations?

  • @Ariane-Bouchard
    @Ariane-Bouchard 2 года назад

    Seriously? You're not even going to touch the most obvious solution: don't use iron? Aluminium is among the most common elements in the Earth's crust, you know, and it doesn't rust.

  • @danedane55
    @danedane55 3 года назад

    I'm here for the silvia

  • @randylmacwhite9666
    @randylmacwhite9666 Год назад

    Iron metal has worst oxide layer then any metal by except for copper metal oxide erosion turns green but isn't rust..

  • @AressaKeter
    @AressaKeter Год назад

    In Rust, We Trust!

  • @barrycadena2501
    @barrycadena2501 3 года назад

    You left out cathodic protection systems

  • @nukelaloosh4795
    @nukelaloosh4795 3 года назад

    that chicks uptalking is off the charts

  • @desireeespinosa3954
    @desireeespinosa3954 2 года назад

    Feb 2022… well this is depressing

  • @7GtwNYkHYs
    @7GtwNYkHYs 3 года назад

    I clicked because I saw an s13 in the thumbnail, my first car was an s13
    edit: it eventually rusted through the frame rails 😥

  • @alimirza2320
    @alimirza2320 3 года назад

    Speed

  • @cyanide_7033
    @cyanide_7033 2 года назад

    s13

  • @Sparkyminor
    @Sparkyminor 3 года назад

    Engagement engagement engagement

  • @Noman1000
    @Noman1000 3 года назад

    That s13 tho

  • @ricecakeboii94
    @ricecakeboii94 3 года назад

    New 2022 WRX has plastic bumpers. Solved your rust problems. Just get a new car

  • @mikebauer6917
    @mikebauer6917 3 года назад

    Can I interest you in an extended warranty?

  • @paytonpryor
    @paytonpryor 3 года назад +1

    We should just stop building with steel and use carbon.

    • @brianisme6498
      @brianisme6498 3 года назад

      So diamonds

    • @paytonpryor
      @paytonpryor 3 года назад

      @@brianisme6498 diamond's aren't the only form of carbon. 🤣

    • @brianisme6498
      @brianisme6498 3 года назад

      @@paytonpryor no it is not. But it is almost entirely carbon, being about 95% carbon. The most pure of any gem. Plus it’s concentration makes it extremely tough. It’s highly unrealistic for us to suddenly stop using steel for diamonds. Or any other material actually, but it’s a random suggestion off the top of my head.

    • @paytonpryor
      @paytonpryor 3 года назад +1

      @@brianisme6498 carbon fiber is extremely strong and lightweight. You're right it is a random suggestion. But I want to make it as clear as a VVVS Diamond for the second time, when I said carbon, I wasn't talking about building with diamonds. That's ridiculous. If I meant diamonds I would have said diamonds. BTW there's a ton of carbon in our atmosphere to capture and convert. We have concrete that can absorb carbon from the air. Steel is old technology. It's time to advance humanity.

    • @paytonpryor
      @paytonpryor 2 года назад

      @@brianisme6498 ruclips.net/video/To3mwf_YBjE/видео.html

  • @accutronitisthe2nd95
    @accutronitisthe2nd95 3 года назад +1

    Someone needs to tell Qtrumplicans this!

  • @SailingPachamama
    @SailingPachamama 2 года назад

    The suitable audience is 2nd grade.

  • @theobserver9131
    @theobserver9131 3 года назад

    Why did you have to punish us with horrible presidents?GAH!

  • @mandarhulsurkar7840
    @mandarhulsurkar7840 2 года назад +1

    I love the last part where Bush, Trump and now Biden talks about building infrastructure. Politicians are same every where. Here in India we vote them every 5 years practically for the same reason 😄 😉

  • @johnsmith9903
    @johnsmith9903 3 года назад

    Wow, Buch and tRUMPuntia are your examples of Us presidents wanting infrastructure improvements. Interesting angle or not eh.? Wat Wat.

  • @tumic77
    @tumic77 3 года назад

    If your target audience is kids I get it.. Not for me though until your production gets more serious and presenters more invested and more informed. It feels forced like any other menial job so... .. . 🤨

  • @will2see
    @will2see 2 года назад

    What is this for 5 yo or what?

  • @morsamorsa7843
    @morsamorsa7843 3 года назад +2

    America is rotting.

  • @Hakeeeeeeem
    @Hakeeeeeeem 2 года назад

    No speech from Obama?

  • @cutratecontractor1000
    @cutratecontractor1000 2 года назад

    Joe bidens dee 1:03

  • @santossarmiento9602
    @santossarmiento9602 Год назад

    I bet you it's diseases breh

  • @nodical802
    @nodical802 3 года назад +3

    Get a less annoying narrator thank you

    • @monsoonmast
      @monsoonmast 3 года назад +2

      wtf the narrator is good

    • @brianisme6498
      @brianisme6498 3 года назад +3

      @@monsoonmast he’s talking like it’s a children’s show. Kinda stopped watching because of the cringe.

  • @turgsh01
    @turgsh01 3 года назад

    Thumbs down because you included politics. The world would be a far better place without it's existence.