Crystalline Fe-based alloy powder and method for producing same

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United States of America Patent

PATENT NO 11545286
APP PUB NO 20200243238A1
SERIAL NO

16636766

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A crystalline Fe-based alloy powder composed of Fe-based alloy particles containing, within a structure thereof, nanocrystal grains having an average grain size of 30 nm or less, and in which d50, which is a particle diameter corresponding to a cumulative frequency of 50% by volume, is from 3.5 μm to 35.0 μm in a cumulative distribution curve that is obtained by laser diffractometry and that shows the relationship between the particle diameter and the cumulative frequency from the small particle diameter side, and a ratio of Fe-based alloy particles having a particle diameter of 2 μm or less to the total of the Fe-based alloy particles, which is determined by laser diffractometry, is from 0% by volume to 8% by volume.

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Patent Owner(s)

Patent OwnerAddress
HITACHI METALS LTDTOKYO 108-0075

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chiwata, Nobuhiko Tokyo, JP 12 63
Kato, Tetsuro Tokyo, JP 90 1340
Noguchi, Shin Tokyo, JP 31 181
Ohta, Motoki Tokyo, JP 35 254
Yamanaka, Shuji Tokyo, JP 3 2

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