Effect of Cobalt and Copper Additions on the Properties of New High Magnetic Permeability Alloy “Nimalloy” in the Nickel and Manganese System

Masumoto Hakaru, Murakami Yûetsu, Hinai Masakatsu

doi:10.2320/jinstmet1952.34.4_380

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Ni-Mn系新高透磁率合金「Nimalloy」の特性におよぼすCoおよびCu添加の影響について
Ni-Mnケイシンコウトウジリツゴウキン Nimalloy ノトクセイニオヨボス Co オヨビ Cu テンカノエイキョウニツイテ
Effect of Cobalt and Copper Additions on the Properties of New High Magnetic Permeability Alloy “Nimalloy” in the Nickel and Manganese System

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Abstract

Masumoto et al. previously discovered that alloys near the composition of Ni₃Mn exhibit high permeability by optimum heat treatments, and named them “Nimalloy”. Subsequent studies of the authors on various element additions on the properties of Ni-Mn alloys have revealed that the highest initial permeability of 76000 and the highest maximum permeability of 441000 can be obtained in Ni-Mn-Fe-Cr alloys.<BR>The results obtained by Co and Cu additions to Ni-Mn alloys show that the initial and maximum permeabilities of Ni-Mn alloys decrease rapidly with increasing Co content and gradually with increasing Cu content. In the case of Co additions, the alloy consisting of 77.70%Ni, 19.30%Mn and 3.00%Co shows the highest initial permeability of 2250, and the alloy of 81.25%Ni, 11.75%Mn and 7.00%Co exhibits the highest maximum permeability of 7700. In the case of Cu additions, the highest initial permeability of 5750 is obtained on the alloy consisting of 75.88%Ni, 20.30%Mn and 3.82%Cu, and the highest maximum permeability of 17600, on the alloy of 77.28%Ni, 20.95%Mn and 1.77%Cu.

Journal

Journal of the Japan Institute of Metals and Materials

Journal of the Japan Institute of Metals and Materials 34 (4), 380-384, 1970

The Japan Institute of Metals and Materials

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