Is it possible to use nitrogen in place of argon during the
melting process? I am using.952 palladium alloyed with ruthenium
Since I'm not a chemist or experienced caster, I'll let those with
the proper credentials give the definitive answer.
However, the reason argon is used as a cover gas when melting metals
is, it is an inert gas. It doesn't combine chemically with the metal
or anything else. Nitrogen on the other hand is NOT an inert gas &
may combine chemically with the metal being melted producing
undesired characteristics. This is the same reason it's used with
MIG, TIG, ABI Pulse Arc & PUK welders.