Hi Colleagues,
Recent tantalum .002" foil material (either e-beam melted or arc cast) has tearing problems forming small cup shapes, while 5-10 years old vintage material (.0023 to .0024" thick) does not. The source of the old vintage material cannot be verified, but we can can assume that both...
Unalloyed tantalum can be annealed in vacuum or in inert-gas atmospheres at 2400F for 1 hour. Can it be heated, as in copper, to near its critical temperature to produce a dead soft condition?
Thank you for your comments.
I am trying to find the best temperature (C) and time (minutes) at temperature for annealing C1018 steel to obtain the lowest permeability. Please suggest the amount of time per cross-sectional thickness. What permeability should I expect to get?
Thank you.
