Title:
IRON-COBALT-BASED NANOCRYSTALLINE ALLOY AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/127867
Kind Code:
A1
Abstract:
An iron-cobalt-based nanocrystalline alloy as shown by Formula (I) and a manufacturing method thereof. In Formula (I), 0.3≤x≤0.45, 70≤a≤78, 1.5≤b≤4, 12≤c≤18, 4≤d≤8, 0.5≤e≤2, and 0.3≤f≤1.2. M is one or more of Cr, V, Mo, Nb, and Zr. By means of adding the above elements and controlling the contents thereof, the iron-cobalt-based nanocrystalline alloy has the features of high squareness ratio, high magnetic permeability, low loss, and low coercivity. In the process of preparing the iron-cobalt-based nanocrystalline alloy, a two-step annealing process is used, thereby further reducing the coercivity, improving the magnetic permeability, and finally obtaining an iron-cobalt-based nanocrystalline alloy having excellent magnetic properties. (Fe 1-xCo x) aM bSi cB dC eCu f (Ⅰ).
Inventors:
LI CHANGQIU (CN)
ZHANG SHIMING (CN)
YANG DONG (CN)
ZHANG SHIMING (CN)
YANG DONG (CN)
Application Number:
PCT/CN2018/076204
Publication Date:
July 04, 2019
Filing Date:
February 11, 2018
Export Citation:
Assignee:
QINGDAO YUNLU ADVANCED MAT TECH CO LTD (CN)
International Classes:
H01F1/153; C21D1/26; C22C38/16; C22C38/32; C22C38/34
Domestic Patent References:
| WO2017017256A1 | 2017-02-02 |
Foreign References:
| CN101840763A | 2010-09-22 | |||
| CN102925823A | 2013-02-13 | |||
| CN1064561A | 1992-09-16 | |||
| CN1400327A | 2003-03-05 | |||
| CN1596321A | 2005-03-16 | |||
| US20120262266A1 | 2012-10-18 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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