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Scientists Invent A New Steel As Strong As Titanium

Discussion in 'Model 3' started by ratsbew, Feb 5, 2015.

  1. ratsbew

    ratsbew Member

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    Article

    I'm sure it's too late for this development to affect Model 3, but this sounds super promising to help advance the automotive industry. I already tweeted the article to @TeslaMotors and @ElonMusk.

    Thoughts?
     
  2. Cosmacelf

    Cosmacelf Active Member

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    They still have an unsolved science issue. Corrosion.
     
  3. santana338

    santana338 Member

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    I remember back in the day when my dad was still in the air force, he told me the mechanics working on titanium aircraft had to have titanium tools to prevent bad things from happening. I assume the bad things were corrosion. But titanium was used a lot on high performance sailboats and I don't recall hearing about any issues there other than cost. Is titanium corrosion still an issue?

    I agree this new material has a long way to go before it winds up in any products. Just like battery technology, it is a long way from the lab to production.
     
  4. jaguar36

    jaguar36 Member

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    The title is very misleading, we already have steels that are 2-3 times stronger than titanium.
     
  5. AudubonB

    AudubonB Mild-mannered Moderator Lord Vetinari*

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    INdeed, although the title is misleading, the article makes it clear that the reference is to Ti-steel alloys, which are, indeed, about as tough as anything we've yet been able to concoct. ALWAYS read beyond the headline!

    Nevertheless, the article also gives a nod to the problem of corrosion of this Al-steel alloy, as Cosmacelf pointed out. Worse for me, however, is this line which, once parsed, becomes close to malarkey, as follows - quoting the researcher:
    OK...so it's 13% lighter than a TI-alloy....and almost 13% less strong than same. So you need 13% more of it to get something that's almost as strong as a Ti alloy.

    Don't think we're quite there yet, Doc.
     
  6. gregincal

    gregincal Active Member

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    No, it's 13% lighter than normal steel, not a Ti-steel alloy. Basically not quite as good as Ti-steel alloys, but 90% cheaper.
     
  7. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Active Member

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    Bingo. Cheap and strong. So, in automotive use, you might be able to use such an alloy to provide the structural strength, reducing weight without raising the price much. Import in meeting increased efficiency standards.
     
  8. AudubonB

    AudubonB Mild-mannered Moderator Lord Vetinari*

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    Aah - fair enough. Ti-alloys also are significantly less dense than the more prosaic steels. It is, however, an enormous stretch to say something that has been created in laboratory scale costs ten percent as much as a commercially available product. You certainly cannot add up the cost of raw Fe, Ni and Al, and compare it to raw Fe and Ti, and claim a cost victory!

    Regardless, I'm all for more research into steel alloys, and hope POSCO can take the good Dr Kim's work and pound it into something cost effective.
     

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