[TheForge] preserving heat colors

[Hochewa at aol.com]

To All,
In a nutshell, with outlandish difficulty.
Niobium can be electrodeposited from a molten salt under vacuum.  Dow or 
DuPont or one of those types patented a process in the mid-seventies.  It was used 
to plate the internal working of chemical pumps.  The process was not pretty.

Hochewa

In a message dated 3/14/2005 9:26:34 AM Eastern Standard Time, 
FREEMAB at pt.fdah.com writes:
Niobium jewelry often bears these colors.  I wonder whether steel could
be niobium plated?...