CN1091162C - 铁钴合金 - Google Patents
铁钴合金 Download PDFInfo
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- CN1091162C CN1091162C CN99101766A CN99101766A CN1091162C CN 1091162 C CN1091162 C CN 1091162C CN 99101766 A CN99101766 A CN 99101766A CN 99101766 A CN99101766 A CN 99101766A CN 1091162 C CN1091162 C CN 1091162C
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- iron
- alloy
- cobalt
- niobium
- base alloy
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Hard Magnetic Materials (AREA)
Abstract
本发明提供了一种铁钴合金,其特征在于其化学组成含有(以重量表示):35%≤Co≤55%、0.5%≤V≤2.5%、0.02%≤Ta+2×Nb≤0.2%、0.0007%≤B≤0.007%、C≤0.05%、其余为铁和由熔炼工艺造成的杂质。
Description
本发明涉及一种具有改善机械性能的铁钴合金。
铁钴合金是众所周知的,其特征在于在一般温度下它既有很有用的磁性特性又有很高程度的脆性,使得它们难于使用。特别地,含有50%重量钴和50%重量铁的合金Fe50Co50具有很高的饱和磁感应强度和良好的磁导率,但它有不能冷轧的缺点,使得它不能实际使用。脆性很高的原因是在大约730℃以下因无序-有序转变而导致生成了一种有序的α`相。加入钒可以减缓这种无序-有序转变,从而有可能制备一种能在快速淬火后进行冷轧的、含有约50%钴和约50%铁的一种铁-钴类型的合金。因而现已提出了一种含有约49%钴、2%钒、其余为铁和杂质的合金。这种合金虽然的确在冷轧和约720℃~870℃之间的温度下退火之后具有很好的磁性能,但它的缺点是在快速淬火之前的再加热过程中需要特别小心以便减少对韧性有害的晶粒粗化。
为了便于进行淬火之前的再加热,现已提出,特别是在美国专利US3634072中,加入0.02%~0.5%的铌和任选的0.07%~0.3%的锆以便减少再加热过程中的晶粒粗化危险。这样所得的合金的磁性特性和韧性虽然并不比只含有2%钒的合金优异,但与它们相当。淬火前的再加热简单易行。
另外,现已发现可以用铌或者钽替代钒。因而,美国专利US4933026揭示了含有选自铌和钽的至少一种元素的一种合金,其中铌和钽的数量是使它们的总和在0.15%~0.5%之间(重量)。这种合金与前述合金的韧性相当,并且有能在更高温度下退火的优点,从而使得能得到优异的磁性特性。然而,它的缺点是电阻相对较低。这增大了感应电流损耗并限制了可能的用途。
最后,所有这些合金的抗张强度机械性能都不足以在某些用途下使用,例如以很高转速旋转的机器的磁路。这是因为很难得到480MPa以上的屈服应力。
为了改善这些机械性能,现已提出一种合金,特别是在国际专利申请WO 96/36059中,该合金基本含有(重量)48%~50%的钴、1.8%~2.2%的钒、0.15%~0.5%的铌和0.003%~0.02%的碳、其余是铁和杂质。该专利申请中规定可以用钽以一原子钽对每一原子铌的数量部分或者全部替代铌。给定钽和铌各自的原子量,这对应于2%重量以上的钽对每1%重量的铌。这种合金中,铌(或者钽)在晶界处形成能防止晶粒粗化的Laves相,从而显著提高了屈服应力,但没有显著改善韧性。举例来说,在720℃退火后,屈服应力可超过600MPa。然而,只有在铌或钽的加入量相对较大时才能得到这些机械性能。
为了仍能在再结晶温度范围的上限退火情况下得到高的屈服应力,铌或钽的加入量必须相对较大,其优点是可在有效退火温度下得到离散性低的结果。另一方面,这种措施的缺点是降低了合金的可热轧性。
本发明的目的是提供一种在仍具有良好可热轧性的同时具有满意的韧性、良好的磁性能和改善的机械性能的铁-钴合金。
为达到该目的,本发明的主题是一种含有下述(以重量表示)化学组成的铁-钴合金:
--35%~55%的钴,优选地40%~50%;
--0.5%~2.5%的钒,优选地1.5%~2.2%;
--选自钽和铌中的至少一种元素,其含量满足0.02%≤Ta+2×Nb≤0.2%,优选地满足0.03%≤Ta+2×Nb≤0.15%,更优选同时满足Nb≤0.03%;
--0.0007%~0.007%的硼,优选地0.001%~0.003%;
--0.05%以下的碳,优选地0.007%以下;
其余是铁和由熔炼过程所造成的杂质。
优选地,杂质锰、硅、铬、钼、铜、镍和硫的含量满足Mn+Si≤0.2%、Cr+Mo+Cu≤0.2%、Ni≤0.2%和S≤0.005%。
本发明人现已令人惊异地发现,当向组成还含有0.5%~2.5%优选地1.5%~2.2%的钒和少量元素例如钽和铌等的铁-钴合金中加入0.0007%~0.007%优选地0.001%~0.003%重量的硼时,合金在仍保持满意的磁性能和仍具有很好的可热轧性的同时可显著提高屈服应力。
举例并作为对比,制备根据本发明的合金A和B以及根据现有技术的合金C。利用这些合金通过1200℃左右下的热轧制备成2mm厚的板,该合金板通过在1秒钟以内从800℃冷却到100℃进行快速淬火。这样所得的钢板进行冷轧以便得到0.35mm厚的合金带钢。然后这些冷轧带钢根据现有技术在从700℃到900℃的温度范围内退火以便得到适于使用的性能。接着测量所得的机械性能和磁性特性。合金A和B的热轧没有任何困难,即没有出现边角裂纹。
合金的化学组成如下表所示(其余为铁):
Co | V | Ta | Nb | B | C | Mn | Si | Cr | Ni | Cu | S | P | |
A | 48.5 | 1.98 | - | 0.044 | 0.0022 | 0.011 | 0.102 | 0.06 | 0.04 | 0.11 | 0.01 | 0.004 | 0.005 |
B | 48.1 | 19 | 0.17 | - | 0.0012 | 0.005 | 0.05 | 0.05 | 0.02 | 0.2 | 0.01 | 0.002 | 0.005 |
C | 48.7 | 1.97 | - | 0.064 | - | 0.01 | 0.09 | 0.05 | 0.04 | 0.12 | 0.01 | 0.003 | 0.005 |
在725℃、760℃和850℃退火后所得到的机械性能如下表所示(Re0.2=屈服应力;HV=维氏硬度):
Re0.2(MPa) | HV | |||||
725℃ | 760℃ | 850℃ | 725℃ | 760℃ | 850℃ | |
A | 530 | 470 | 390 | 260 | 250 | 230 |
B | 675 | 475 | 330 | 315 | 263 | 222 |
C | 480 | 420 | 310 | 250 | 240 | 220 |
所测量的磁性特性是:
--在DC励磁H分别为20Oe=1600 A/m、50Oe=400A/m、100Oe=8000 A/m下的磁感应强度B(单位特斯拉);
--矫顽磁场强度Hc(单位A/m);
--对于峰高为2特斯拉的正弦式感应在400Hz下的铁磁损耗(单位W/kg)。
这些参数的测量结果为:
--在725℃退火后为:
B(20 Oe) | B(50 Oe) | B(100 Oe) | Hc | 损耗 | |
A | 2.04 | 2.18 | 2.25 | 296 | 131 |
B | 2.00 | 2.15 | 2.25 | 488 | 158 |
C | 2.01 | 2.21 | 2.26 | 184 | 94 |
--在760℃退火后为:
B(20 Oe) | B(50 Oe) | B(100 Oe) | Hc | 损耗 | |
A | 2.09 | 2.20 | 2.27 | 216 | 110 |
B | 2.07 | 2.20 | 2.26 | 232 | 104 |
C | 2.12 | 2.22 | 2.28 | 152 | 87 |
--在850℃退火后为:
B(20 Oe) | B(50 Oe) | B(100 Oe) | Hc | 损耗 | |
A | 2.14 | 2.23 | 2.28 | 120 | 86 |
B | 2.12 | 2.23 | 2.30 | 88 | 74 |
C | 2.11 | 2.21 | 2.26 | 96 | 75 |
这些结果表明,由于根据本发明的合金A和B的屈服应力可以超过500MPa,因此它们在仍具有很接近于合金C的磁性特性的同时,其机械性能显著改善,这些性能与根据现有技术制备的含有0.3%铌的合金的性能相当。
Claims (8)
1.一种铁-钴合金,其特征在于其化学组成含有,以重量表示:
35%≤Co≤55%
0.5%≤V≤2.5%
0.02%≤Ta+2×Nb≤0.2%
0.0007%≤B≤0.007%
C≤0.05%
其余为铁和由熔炼工艺造成的杂质。
2.根据权利要求1的铁-钴合金,其特征在于:
1.5%≤V≤2.2%。
3.根据权利要求1或2的铁-钴合金,其特征在于:
0.03%≤Ta+2×Nb≤0.15%。
4.根据权利要求1或2的铁-钴合金,其特征在于:
Nb≤0.03%。
5.根据权利要求1或2的铁-钴合金,其特征在于:
0.001%≤B≤0.003%。
6.根据权利要求1或2的铁-钴合金,其特征在于:
C≤0.007%。
7.根据权利要求1或2的铁-钴合金,其特征在于由熔炼过程所造成的杂质的含量满足:
Mn+Si≤0.2%
Cr+Mo+Cu≤0.2%
Ni≤0.2%
S≤0.005%。
8.根据权利要求1或2的铁-钴合金,其特征在于:
40%≤Co≤50%。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9801310 | 1998-02-05 | ||
FR9801310A FR2774397B1 (fr) | 1998-02-05 | 1998-02-05 | Alliage fer-cobalt |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1227271A CN1227271A (zh) | 1999-09-01 |
CN1091162C true CN1091162C (zh) | 2002-09-18 |
Family
ID=9522600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN99101766A Expired - Fee Related CN1091162C (zh) | 1998-02-05 | 1999-02-04 | 铁钴合金 |
Country Status (10)
Country | Link |
---|---|
US (1) | US6146474A (zh) |
EP (1) | EP0935008B1 (zh) |
JP (1) | JPH11264058A (zh) |
CN (1) | CN1091162C (zh) |
DE (1) | DE69903202T2 (zh) |
ES (1) | ES2185294T3 (zh) |
FR (1) | FR2774397B1 (zh) |
HK (1) | HK1021651A1 (zh) |
IL (2) | IL128067A (zh) |
RU (1) | RU2201990C2 (zh) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6855240B2 (en) * | 2000-08-09 | 2005-02-15 | Hitachi Global Storage Technologies Netherlands B.V. | CoFe alloy film and process of making same |
FR2816959B1 (fr) | 2000-11-17 | 2003-08-01 | Imphy Ugine Precision | Procede pour fabriquer une bande ou une piece decoupee dans une bande en acier maraging laminee a froid |
US6685882B2 (en) * | 2001-01-11 | 2004-02-03 | Chrysalis Technologies Incorporated | Iron-cobalt-vanadium alloy |
DE10134056B8 (de) | 2001-07-13 | 2014-05-28 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zur Herstellung von nanokristallinen Magnetkernen sowie Vorrichtung zur Durchführung des Verfahrens |
US6992555B2 (en) * | 2003-01-30 | 2006-01-31 | Metglas, Inc. | Gapped amorphous metal-based magnetic core |
DE10320350B3 (de) * | 2003-05-07 | 2004-09-30 | Vacuumschmelze Gmbh & Co. Kg | Hochfeste weichmagnetische Eisen-Kobalt-Vanadium-Legierung |
DE102005034486A1 (de) * | 2005-07-20 | 2007-02-01 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zur Herstellung eines weichmagnetischen Kerns für Generatoren sowie Generator mit einem derartigen Kern |
US20100201469A1 (en) * | 2006-08-09 | 2010-08-12 | General Electric Company | Soft magnetic material and systems therewith |
US20080035245A1 (en) * | 2006-08-09 | 2008-02-14 | Luana Emiliana Iorio | Soft magnetic material and systems therewith |
ATE418625T1 (de) | 2006-10-30 | 2009-01-15 | Vacuumschmelze Gmbh & Co Kg | Weichmagnetische legierung auf eisen-kobalt-basis sowie verfahren zu deren herstellung |
US8012270B2 (en) | 2007-07-27 | 2011-09-06 | Vacuumschmelze Gmbh & Co. Kg | Soft magnetic iron/cobalt/chromium-based alloy and process for manufacturing it |
US9057115B2 (en) | 2007-07-27 | 2015-06-16 | Vacuumschmelze Gmbh & Co. Kg | Soft magnetic iron-cobalt-based alloy and process for manufacturing it |
JP5262423B2 (ja) * | 2008-08-21 | 2013-08-14 | セイコーインスツル株式会社 | ゴルフクラブヘッド、そのフェース部及びその製造方法 |
GB2495465B (en) * | 2011-07-01 | 2014-07-09 | Vacuumschmelze Gmbh & Co Kg | Soft magnetic alloy and method for producing a soft magnetic alloy |
US10294549B2 (en) | 2011-07-01 | 2019-05-21 | Vacuumschmelze Gmbh & Co. Kg | Soft magnetic alloy and method for producing soft magnetic alloy |
US9243304B2 (en) | 2011-07-01 | 2016-01-26 | Vacuumschmelze Gmbh & Company Kg | Soft magnetic alloy and method for producing a soft magnetic alloy |
GB2492406B (en) * | 2011-07-01 | 2013-12-18 | Vacuumschmelze Gmbh & Co Kg | Soft magnetic alloy and method for producing a soft magnetic alloy |
US20140283953A1 (en) * | 2011-12-16 | 2014-09-25 | Aperam | Method for producing a soft magnetic alloy strip and resultant strip |
CN103111811B (zh) * | 2013-03-07 | 2015-09-23 | 茂名市兴丽高岭土有限公司 | 一种高岭土除铁过滤网的制造方法 |
DE102014213794A1 (de) * | 2014-07-16 | 2016-01-21 | Robert Bosch Gmbh | Weichmagnetische Legierungszusammensetzung und Verfahren zum Herstellen einer solchen |
CN106011543A (zh) * | 2016-07-11 | 2016-10-12 | 陕西航空精密合金有限公司 | 改良型铁钴钒合金及其制造方法 |
TWI619817B (zh) * | 2016-10-26 | 2018-04-01 | 光洋應用材料科技股份有限公司 | 鈷鐵鈮基靶材 |
DE102016222805A1 (de) * | 2016-11-18 | 2018-05-24 | Vacuumschmelze Gmbh & Co. Kg | Halbzeug und Verfahren zum Herstellen einer CoFe-Legierung |
DE102018112491A1 (de) * | 2017-10-27 | 2019-05-02 | Vacuumschmelze Gmbh & Co. Kg | Hochpermeable weichmagnetische Legierung und Verfahren zum Herstellen einer hochpermeablen weichmagnetischen Legierung |
US11827961B2 (en) | 2020-12-18 | 2023-11-28 | Vacuumschmelze Gmbh & Co. Kg | FeCoV alloy and method for producing a strip from an FeCoV alloy |
FR3127649A1 (fr) * | 2021-09-24 | 2023-03-31 | Erneo | Piece rotative du type « rotor » de machine electrique et/ou magnetique et machine associee. |
Citations (1)
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US5501747A (en) * | 1995-05-12 | 1996-03-26 | Crs Holdings, Inc. | High strength iron-cobalt-vanadium alloy article |
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US3065118A (en) * | 1959-01-16 | 1962-11-20 | Gen Electric | Treatment of iron-cobalt alloys |
US3634072A (en) * | 1970-05-21 | 1972-01-11 | Carpenter Technology Corp | Magnetic alloy |
JPS5110806B2 (zh) * | 1972-04-26 | 1976-04-07 | ||
GB1523881A (en) * | 1975-03-04 | 1978-09-06 | Telcon Metals Ltd | Magnetic alloys |
GB1592419A (en) * | 1978-04-17 | 1981-07-08 | Telcon Metals Ltd | Magnetic alloys |
GB8715726D0 (en) * | 1987-07-03 | 1987-08-12 | Telcon Metals Ltd | Soft magnetic alloys |
JP2701306B2 (ja) * | 1988-04-05 | 1998-01-21 | 大同特殊鋼株式会社 | Fe−Co系磁性合金の製造方法 |
-
1998
- 1998-01-14 IL IL12806798A patent/IL128067A/en not_active IP Right Cessation
- 1998-02-05 FR FR9801310A patent/FR2774397B1/fr not_active Expired - Fee Related
-
1999
- 1999-01-14 IL IL12806799A patent/IL128067A0/xx unknown
- 1999-01-15 US US09/231,765 patent/US6146474A/en not_active Expired - Fee Related
- 1999-01-19 ES ES99400112T patent/ES2185294T3/es not_active Expired - Lifetime
- 1999-01-19 DE DE69903202T patent/DE69903202T2/de not_active Expired - Fee Related
- 1999-01-19 EP EP99400112A patent/EP0935008B1/fr not_active Expired - Lifetime
- 1999-02-02 JP JP11025528A patent/JPH11264058A/ja not_active Withdrawn
- 1999-02-04 CN CN99101766A patent/CN1091162C/zh not_active Expired - Fee Related
- 1999-02-04 RU RU99102555/02A patent/RU2201990C2/ru not_active IP Right Cessation
-
2000
- 2000-02-02 HK HK00100635A patent/HK1021651A1/xx not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5501747A (en) * | 1995-05-12 | 1996-03-26 | Crs Holdings, Inc. | High strength iron-cobalt-vanadium alloy article |
Also Published As
Publication number | Publication date |
---|---|
RU2201990C2 (ru) | 2003-04-10 |
EP0935008B1 (fr) | 2002-10-02 |
US6146474A (en) | 2000-11-14 |
DE69903202T2 (de) | 2003-06-18 |
FR2774397B1 (fr) | 2000-03-10 |
HK1021651A1 (en) | 2000-06-23 |
EP0935008A1 (fr) | 1999-08-11 |
CN1227271A (zh) | 1999-09-01 |
ES2185294T3 (es) | 2003-04-16 |
IL128067A (en) | 2001-10-31 |
FR2774397A1 (fr) | 1999-08-06 |
DE69903202D1 (de) | 2002-11-07 |
JPH11264058A (ja) | 1999-09-28 |
IL128067A0 (en) | 1999-11-30 |
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