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[Engadget] Detroit DIYer cooks up stronger, lighter steel, shames scientists - Page 3

post #21 of 47
Thanks for the 2nd article W4lnuts.

The Radius Kid, why would hardening steel using this 'flash bainite' method take more energy than hardening through traditional methods? Do you think there will be more pre/post-process work required?

I know nothing about steel processing or metallurgy, so please don't use too much industry jargon. If it isn't possible to give a good answer without the jargon, I guess I can trip out on wikipedia tonight trying to make sense of it.
post #22 of 47
We know how to heat treat steel. We're not banging rocks together here.
post #23 of 47
Quote:
Originally Posted by willis888 View Post
Thanks for the 2nd article W4lnuts.

The Radius Kid, why would hardening steel using this 'flash bainite' method take more energy than hardening through traditional methods? Do you think there will be more pre/post-process work required?

I know nothing about steel processing or metallurgy, so please don't use too much industry jargon. If it isn't possible to give a good answer without the jargon, I guess I can trip out on wikipedia tonight trying to make sense of it.

No problem.
In the past,they used big silos or furnaces to heat the steel for processing.
The problem is that the steel is in a coil and getting the heat to penetrate to the "core" of the coil takes a while and uses energy.
Induction heating is good,but imparts certain properties to the metal that can be alloyed in when the steel is first "brewed".
The other problem with heat treating materials to achieve results similar to more "expensive grades" is that the treatment can become undone over time.
You never get the full effect,but if you get the majority of it,it can pay off.
post #24 of 47
Quote:
Originally Posted by Jinto View Post
Ah, back to the good old days of American entrepreneurship. Corporations can shove it.
By the sound of it, you weren't even alive during whatever "good old days" didn't have corporations dominating business.

(Hint: like, a century+ ago?)
post #25 of 47
They used to do this with steel swords in the medieval times.

Flash heat their blades, quickly cool them. Multiple times they'd do this, and it'd turn the steel a blueish colour. Thus, blue steel. A blade that was stronger, but more brittle, than the average blade.
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post #26 of 47
I wonder how this compares to carbon nano tubes for tensile strength , i mean in gpa's
Edited by Toology - 6/11/11 at 6:05pm
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post #27 of 47
A lot of things are great on paper, it's bringing them to mass production scale that is the killer.
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post #28 of 47
Wait, this wasn't discovered yet? I remember learning about this years ago, it has to do with the atoms making an uneven alignment that is resistant to simply fracturing, instead of slow forging which aligns all the atoms. Pretty sure this was done to make swords. yeah what the post up above said, I made a quick post when I saw the article.
post #29 of 47
Quote:
Originally Posted by Jinto View Post
Ah, back to the good old days of American entrepreneurship. Corporations can shove it.
Sadly, a Corporation will buy it and outsource its production to a cheaper country.
    
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post #30 of 47
Why does Engadget always go for the sleazy titles to their stories?
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