Effect of Niobium Additions on the Properties of New High Magnetic Permeability Alloys “Nimalloy” in the Nickel and Manganese System

Masumoto Hakaru, Murakami Yûetsu, Hinai Masakatsu

doi:10.2320/jinstmet1952.34.1_40

Bibliographic Information

Other Title

Ni-Mn系新高透磁率合金「Nimalloy」の特性におよぼすNb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 Nb テンカノエイキョウニツイテ
Effect of Niobium Additions on the Properties of New High Magnetic Permeability Alloys “Nimalloy” in the Nickel and Manganese System

Search this article

Abstract

Masumoto et al. previously discovered high permeability alloys near in composition to Ni₃Mn which have an optimum degree of order, and named them “Nimalloy”. Much subsequent work has since been carried out so as to investigate the effects of various additive elements on the properties of nickel-manganese alloys as a result, the highest initial permeability of 76000 and the highest maximum permeability of 441000 have been obtained in the Ni-Mn-Fe-Cr system.<BR>The data on niobium additions to nickel-manganese alloys show that the initial and maximum permeabilities of nickel-manganese alloys at first increase gradually and later rapidly reach their maxima, and then decrease gradually. The alloy consisting of 77.55%Ni, 19.52%Mn and 2.93%Nb exhibits the highest initial permeability of 32500 when cooled at a rate of 240°C/hr from 900°C and reheated at 440°C for 41 hr, and the highest maximum permeability of 151000 when cooled at a rate of 240°C/hr from 900°C and reheated at 420°C for 80 hr. In the latter case, the alloy shows a coercive force of 0.0149 Oe and a magnetic hysteresis loss of 22.00 erg/cm³/cycle for the maximum magnetic induction of 5000 G, and an electrical resistivity of 50.4 μΩ-cm at 20°C.

Journal

Journal of the Japan Institute of Metals and Materials

Journal of the Japan Institute of Metals and Materials 34 (1), 40-44, 1970

The Japan Institute of Metals and Materials

Keywords

Details 詳細情報について

Export