[TheForge] New technique builds super-hard metals from nanoparticles

[Rob Fertner]

Okay, that makes sense. I'm not a metallurgist either.

Rob
Wichita, KS

-----Original Message-----
From: theforge-bounces at mailman.qth.net <theforge-bounces at mailman.qth.net> On
Behalf Of Bruce
Sent: Tuesday, January 26, 2021 6:45 AM
To: Blacksmithing List Sponsored by ABANA <theforge at mailman.qth.net>
Subject: Re: [TheForge] New technique builds super-hard metals from
nanoparticles

No, "closer" would be nearly impossible.  Changes in the volume of steel
grains as they change crystal structure is fairly small, not negligible, but
small.  And martensite (which I believe is the hardest form of steel, short
of cementite = iron carbide) actually occupies slightly *more *space than
ferrite (which I believe is the softest form).  (*Caveat*:  I'm no
metallurgist.)

"More uniform," quite likely.  That may be the point.

Bruce
NJ


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