Title:
IRON-BASED NANOCRYSTALLINE ALLOY POWDER, METHOD FOR PRODUCING SAME, IRON-BASED AMORPHOUS ALLOY POWDER, AND MAGNETIC CORE
Document Type and Number:
WIPO Patent Application WO/2019/031462
Kind Code:
A1
Abstract:
An iron-based nanocrystalline alloy powder which has an alloy structure that contains nanocrystalline particles and has an alloy composition represented by compositional formula (1). Compositional Formula (1): Fe100-a-b-c-d-e-f-gCuaSibBcModCreCfNbg In compositional formula (1), 100 - a - b - c - d - e - f - g, a, b, c, d, e, f and g represent the atomic percentages of the respective elements; and a, b, c, d, e, f and g satisfy 0.10 ≤ a ≤ 1.10, 13.00 ≤ b ≤ 16.00, 7.00 ≤ c ≤ 12.00, 0.50 ≤ d ≤ 5.00, 0.001 ≤ e ≤ 1.50, 0.05 ≤ f ≤ 0.40 and 0 ≤ (g/(d + g)) ≤ 0.50.
Inventors:
OHTA MOTOKI (JP)
CHIWATA NOBUHIKO (JP)
CHIWATA NOBUHIKO (JP)
Application Number:
PCT/JP2018/029474
Publication Date:
February 14, 2019
Filing Date:
August 06, 2018
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
B22F1/052; B22F1/142
Foreign References:
| JP2007182594A | 2007-07-19 | |||
| JPH044393B2 | 1992-01-28 | |||
| JP2017095773A | 2017-06-01 | |||
| JP2014136807A | 2014-07-28 | |||
| JP2017152108A | 2017-08-31 |
Other References:
See also references of EP 3666420A4
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (JP)
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