Soft magnetics Ni alloy
Soft magnetics Ni alloy
(OP)
Hi. I have a problem identifying this alloy (material) . It should be soft magnetics material made in Germany (1940-1960) . Thanks
Ni-58%
Fe-26.3%
Cr-6.6%
Cu-3.7%
Mn-1.1%
Al-1.2%
Na-1%
Si-0.7%
Co-0.3%
Ni-58%
Fe-26.3%
Cr-6.6%
Cu-3.7%
Mn-1.1%
Al-1.2%
Na-1%
Si-0.7%
Co-0.3%





RE: Soft magnetics Ni alloy
It will not have a very high saturation but will be very constant.
= = = = = = = = = = = = = = = = = = = =
Plymouth Tube
RE: Soft magnetics Ni alloy
RE: Soft magnetics Ni alloy
There is no Na in it. Was it cleaned and freshly polished? Might be surface contamination messing with the analysis.
You are correct, the 60% Ni/25% Fe is an odd ratio.
It does make me wonder how close their reference standard was.....
But if this material was used in the 40's, it may be a design from the 20's.
The alloy may not be for maximum perm but rather for either constant perm with field strength or constant perm with temperature.
It could have been used as a tuning shunt on a magnetic circuit. Bleed off more field at room temp and less at high temp so that the working field stays more consent.
What kind of device what this used in?
= = = = = = = = = = = = = = = = = = = =
Plymouth Tube
RE: Soft magnetics Ni alloy
RE: Soft magnetics Ni alloy
nowadays, people like to use mumetal or permalloy for audio transformer, since one of main goals is to decrease the exciting current in primary to negligible level, high permeabiltiy is obviously beneficial. Also, since harmonci distortion is inversely proportional to permeability, high permeability means low distortion.
constant permeability is beneficial either, but if you can design a transformer to operate at a low flux density such that mumetal is more in the linear portion of curve, you will obtain benefit for a constant permeability.
RE: Soft magnetics Ni alloy
RE: Soft magnetics Ni alloy
A full wet chemistry analysis would give you an accurate composition of the alloy. But an electrical steel might be able to do a better job if you could design the transformer properly. And Si steel is cheap too.
RE: Soft magnetics Ni alloy
RE: Soft magnetics Ni alloy
Who knows what the Germans did.
= = = = = = = = = = = = = = = = = = = =
Plymouth Tube
RE: Soft magnetics Ni alloy
RE: Soft magnetics Ni alloy