Dendritic Alloys: how are they created?

B

bald1

Joined
Oct 3, 1998
Messages
1,646
Most of us know about Boye and his dendritic 440C and now dendritic cobalt alloys. Fewer may know of Gary Kelley and his dendritic D2 steel.

My impression is that this stuff is molten and then cast, producing the crystalline microcarbides during cooling that are the hallmark of the appellation "dendritic".

Not being schooled in metallurgy I'd really like to know how dendritic alloys are really made. I'd sure appreciate an explanation of the process.



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-=[Bob]=-

Bald is beautiful! Rub a dome for luck today!

 
Oh hair challenged one, try Boye's description of the process. He mentions the actual foundry in UT who has always cast his steel. You may wish to contact the foundry for further info. Here's the URL:

http://www2.cruzio.com/~larstein/dendritic.html

Hope this helps, Walt

 
Thanks Doc! I'll check that out.

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-=[Bob]=-

Bald is beautiful! Rub a dome for luck today!

 
In the world of big steel,40+ton castings the word Dendrtic causes much wailling and gnashing of teeth.
It is caused by improper freezing, bad for big castings but is great for knives.

The dendritic crystals have a composition that progesivly changes from the center of the crystal to the last boundry.

If you want more info email me and I will send it to you.

ED


 
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