高透磁率Ni-Fe-6%V合金の諸特性に及ぼすTi, C添加の影響

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タイトル別名
  • Effect of Ti and C Addition on Properties of a High Permeability Ni-Fe-6%V Alloy
  • コウ トウジリツ Ni Fe 6パーセ

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説明

Investigations have been made on the effect of a small quantity of addition of Ti less than 1.5%, or 0.75%Ti and of C less than 0.5% on magnetic properties, stress-sensitivity in magnetic permeability, wear-resistance against abrasive contact with a magnetic tape, electrical resistivity and hardness of a high permeability 83%Ni-11%Fe-6%V alloy. Specimens used in this study were prepared from thin sheets 1, 0.05 and 0.025 mm thick processed by hot-forging and-rolling followed by cold-rolling to more than 85% reduction in area after vacuum-melting, and subsequently annealed in a pure H2 atmosphere in the temperature range between 873 and 1473 K for 3.6 or 7.2 ks. Ring specimens for measurements of the magnetic properties were further subjected to baking at 733 K for 0.3-144 ks.<BR>It is found that the effective permeability μe in a higher frequency field and also the wear-resistance property of the Ni-Fe-6%V alloy can be improved by addition of a small amount of Ti and C. For example, a typical 83%Ni-10.1%Fe-6%V-0.75%Ti-0.15%C alloy exhibits a 20% higher value of μe at 100 kHz for the alloy specimen 0.025 mm in sheet thickness, and the value of wear-resistance three times as large as that of the base alloy for the alloy specimen annealed at 1223 K.<BR>Microstructural observations and various analyses indicate that the above-mentioned improvements in both μe in the higher frequency range and the wear-resistance are due to a proper amount of dispersion of V and/or Ti carbide particles in the alloy matrix.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 50 (3), 328-335, 1986

    公益社団法人 日本金属学会

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