New Process Makes Stronger, Lighter Steel

[eyec]

Found this on Endgadget

http://www.engadget.com/2011/06/11/detroit-diyer-cooks-up-stronger-lighter-steel-shames-scientist/]Detroit DIYer cooks up stronger, lighter steel, shames scientists[/url]

Source
http://www.eurekalert.org/pub_releases/2011-06/osu-anw060911.php]eurekalert[/url]

 

[btrueblood]

links don't work?

 

[swall]

Yes, this was passed on to me Friday. The initial article was vague but I later found a link to a paper written by the participants. Basically, they are working with 8620 alloy of small section size and austenitizing it at higher than normal temperature for short time intervals, then rapid water quenching. It sounds like the initial work was with flame heating, but it is claimed that the process would work with induction heating also. I found no mention of a tempering temperature. The "lighter, stronger" is somewhat of a misnomer. Only lighter by virtue of replacing heaver, low tensile steels with the 8620 "flash processed" material and the stronger is misleading, as the tensiles are about what would be obtained with high tensile chrome silicon wire of similar cross section.

 

[eyec]

http//

http://www.engadget.com/2011/06/11/detroit-diyer-cooks-up-stronger-lighter-steel-shames-scientist/

http//

http://www.eurekalert.org/pub_releases/2011-06/osu-anw060911.php

 

[cloa]

http://www.bainitesteel.com/verification.asp

 

[ornerynorsk]

Without muddling through all the links and hype, are they claiming lower density than .283 #/cu in for 8620 or .28 for 4140? Sorry if I missed the obvious.

It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.

 

[swall]

No, density is the same as the low alloy steels you have cited. It is 8620, after all.

 

[blacksmith37]

I think this is the same guy that invented a pill that you drop into a tank of water and the water turns to motor fuel . Obviously the oil corps are preventing public sale of the pill.