Mike E wrote:Care to explain the ideology behind such a steel? I have no knowledge of today except for that the new "base" steel is 15% more efficient mass/strength wise.
It's the same concept as carbon fibre composites. Layers of fabric with alternating thread orientation fused in a resin. Steel does not need
the resin, but having the crystal structure of each steel layer be orientated in alternating directions produces the same mechanical effect as
for carbon fibre. The steel becomes a composite material with strength that its basic nature cannot provide. Concrete and rebars are another
type of composite where you get a material with properties that simple concrete could never have.
This composite steel requires the knowhow how to cast steel with a preferential crystal orientation, which is not trivial. It also requires
this steel to be worked into thin sheets without losing its crystal coherence. Finally these sheets have to be fused in a way that
does not degrade the original crystal structure of the each sheet but at the same time is strong enough to produce a single thick
sheet of super strong steel that does not come apart like filo pastry. I am actually surprised they achieved this on a commercial
scale and it is quite possible I am hallucinating all of this
It is interesting that the Japanese sword makers produced what amounts to high quality steel without actually having the recipe
for producing the steel directly. The smiths would pound the raw metal into ultra think layers stacked on each other. The
properties of these Japanese swords were very close to those made with Damask steel. Of course, they were not producing the
material I am talking about, but there is a hint of it.