日本金属学会誌

J. Japan Inst. Metals, Vol. 21, No. 11 (1957),
pp. 651-654

Study on Ultrathin Tapes of 50%Fe-Ni Alloy (1st Report). Relation between the Magnetic Properties and the Rolling Condition of the Tapes

Eihachirô Tanaka and Haruo Katô


Abstract:

Ultrathin tapes of 50%Fe-Ni alloy were rolled down to 0.006 mm in thickness. This study were restricted chiefly to the relation between the magnetic properties and degree of the reduction of the final cold rolling. (1) Then magnetic properties (Hc and Br/Bm) of the tapes more than 0.025 mm in thickness were improved with decrease of the thickness. (2) The magnetic properties (Hc and Br/Bm) of the tapes less than 0.0125 mm thick deteriorated with decrease of the thickness. (3) The factor causing the Hc and Br/Bm of the tapes less than 0.0125 mm thick to become inferior to those of the tapes more than 0.0125 mm thick is not the surface contamination of the tapes but their thickness itself.


(Received 1957/6/20)

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