Posted on 04/18/2016 12:15:38 AM PDT by 2ndDivisionVet
Interesting. I’ve sent this to my son, the metallurgist. Thanks for posting.
I’m curious as to the corrosion resistance if any.
I read about this in Atlas Shrugged.
Reardon Metal?
I’m confused...what does this article have to do with Ted Cruz?
If this pans out, the U.S. Steel industry will be revitalized. Thanks for posting this.
“I’m confused...what does this article have to do with Ted Cruz?”
Apparently there is some controversy about the poster being a paid operative of Cruz (who knows?), and the suggestion would be that paid operatives, having little credibility, try to throw in some neutral sounding stuff to misdirect from the mercenary nature of the agency.
Stronger, lighter airplanes perhaps?
I'd like to compare it too:
* 4130 Chromemoly
* The Structure of steels after Cryogenic processing
* And, Austempered Ductile Iron (ADI) which has a weird niche of a being a decent casted crankshaft material.
ADI is not Bainite read this from the link prvided: "The preponderance of information on the austempering of steel and the superficial similarities between the austempering heat treatments applied to steels and ADI, have resulted in comparisons which are incorrect and damaging to the understanding of the structure and properties of ADI. ADI is sometimes referred to as "bainitic Ductile Iron", but correctly heat treated ADI contains little or no bainite. Bainite consists of a matrix of acicular (plate-like) ferrite and carbide. ADI’s ausferrite matrix is a mix of acicular ferrite and carbon stabilized austenite. This ausferrite may resemble bainite metallographically, however it is not because it contains few or none of the fine carbides characteristic in bainite. An ausferrite matrix will only convert to bainite if it is over tempered."
http://www.ductile.org/didata/Section4/4intro.htm#Crankshafts
I wonder with this process if they are almost nitriting with the heat ( total thickness however ) and then almost cryo-ing with the water bath.
Interesting, and yes Aircraft applications would be interesting...
Always a major issue to deal with. Not much value to a super strong & light steel with a very short lifespan of structural integrity due to corrosion!
Since we are living through the rest of Atlas Shrugged, we might as well get Reardon metal.
“Always a major issue to deal with. Not much value to a super strong & light steel with a very short lifespan of structural integrity due to corrosion!”
Automotive steel is covered with anti-corrosion coatings. Remove them, and rust will ensue. I don’t believe any steel in current automotive use is particularly corrosion resistant.
It sounds as though the Army is on board, and its requirements are likely much more stringent than those of automakers.
Sure sounds like it doesn’t it?
In other words, the steel is lighter and stronger pound for pound, but your car won't necessarily be stronger -- or safer. It'll only be lighter.
I think one of the reasons grown-ups prefer heavier vehicles in the first place is their perception that a heavy vehicle is safer than a light vehicle in a collision.
Great news for racing, though. And with any luck, car prices will slow their race to the stratosphere.
Cool.
Does it still rust?
Here in the NE It would rust through by Christmas.
Heat, then cool.
Little heat treating joke for you.
L
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