WO2013137118A1 - アモルファス合金薄帯 - Google Patents

アモルファス合金薄帯 Download PDF

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Publication number
WO2013137118A1
WO2013137118A1 PCT/JP2013/056355 JP2013056355W WO2013137118A1 WO 2013137118 A1 WO2013137118 A1 WO 2013137118A1 JP 2013056355 W JP2013056355 W JP 2013056355W WO 2013137118 A1 WO2013137118 A1 WO 2013137118A1
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atomic
amount
amorphous alloy
alloy ribbon
ribbon
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PCT/JP2013/056355
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English (en)
French (fr)
Japanese (ja)
Inventor
貴幸 茂木
東　大地
板垣　肇
備前　嘉雄
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日立金属株式会社
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Application filed by 日立金属株式会社 filed Critical 日立金属株式会社
Priority to IN8435DEN2014 priority Critical patent/IN2014DN08435A/en
Priority to KR1020207001214A priority patent/KR20200010574A/ko
Priority to CN201380014114.5A priority patent/CN104245993A/zh
Priority to DE112013001401.7T priority patent/DE112013001401T8/de
Priority to KR1020147027048A priority patent/KR20140138222A/ko
Priority to JP2014504831A priority patent/JP6123790B2/ja
Priority to US14/384,968 priority patent/US20150050510A1/en
Publication of WO2013137118A1 publication Critical patent/WO2013137118A1/ja

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys
    • C22C45/02—Amorphous alloys with iron as the major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/003—Making ferrous alloys making amorphous alloys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals

Definitions

  • the present invention relates to an amorphous alloy ribbon.
  • Fe-based amorphous alloy ribbons mainly composed of Fe (iron) (for example, Fe-B-Si-based amorphous alloy ribbons mainly composed of Fe (iron) and further containing B (boron) and Si (silicon) ) Is used as a material such as a magnetic core of a transformer because it has a low iron loss and a high saturation magnetic flux density.
  • Fe-based amorphous alloy ribbon generally has a lower space factor than a grain-oriented electrical steel sheet, and therefore requires a higher space factor. If the space factor is low, a magnetic core with the same inner and outer diameters will also reduce the total magnetic flux and inductance.
  • the manufacturing conditions for example, the surface condition of the cooling roll, etc.
  • the magnetic characteristics such as the magnetic flux density may be deteriorated. Therefore, as a method of improving the space factor of the Fe—B—Si amorphous alloy ribbon, in addition to the adjustment of the manufacturing conditions described above, a method of adjusting the composition of the Fe—B—Si amorphous alloy ribbon itself Can be considered.
  • the space factor of the ribbon is improved by adding C (carbon) to the composition of the Fe—B—Si amorphous alloy ribbon.
  • C carbon
  • the ribbon tends to become brittle. It is also important to maintain a high magnetic flux density in the amorphous alloy ribbon.
  • an object of the present invention is to provide an amorphous alloy ribbon that has an excellent space factor, is suppressed in brittleness (brittleness), and maintains a high magnetic flux density.
  • ⁇ 2> The amorphous alloy ribbon according to ⁇ 1>, wherein the amount of C is 0.3 atomic% to 0.6 atomic%.
  • ⁇ 3> The amorphous alloy ribbon according to ⁇ 1> or ⁇ 2>, wherein the amount of B is 10.0 atomic% to 11.5 atomic%.
  • ⁇ 4> The amorphous alloy ribbon according to any one of ⁇ 1> to ⁇ 3>, wherein the space factor is 88% or more.
  • ⁇ 5> When the total amount of Fe, Si, and B is 100.0 atomic percent, the amount of Fe is 79.0 atomic percent to 80.0 atomic percent, and the amount of Si is 8.5 atomic percent.
  • ⁇ 6> The amorphous alloy ribbon according to any one of ⁇ 1> to ⁇ 5> manufactured by a single roll method.
  • amorphous alloy ribbon that has an excellent space factor, is suppressed in brittleness (brittleness), and maintains a high magnetic flux density.
  • the amorphous alloy ribbon (hereinafter, also simply referred to as “strip”) of the present invention comprises Fe, Si, B, C, and unavoidable impurities, and the total amount of Fe, Si, and B is 100.0 atomic%.
  • the amount of Si is 8.5 atomic% to 9.5 atomic% (that is, 8.5 atomic% to 9.5 atomic%), and the amount of B is 10.0 atomic% to 12 atomic%.
  • the amount of C with respect to the total amount of 100.0 atomic percent is 0.2 atomic percent to 0.6 atomic percent (that is, 0.2 atomic percent to 0.6 atomic percent).
  • the thickness is 10 ⁇ m to 40 ⁇ m (that is, 10 ⁇ m or more and 40 ⁇ m or less), and the width is 100 mm to 300 mm (that is, 100 mm or more and 300 mm or less).
  • Fe—B—Si based amorphous alloy ribbon (hereinafter, also simply referred to as “Fe—B—Si based amorphous alloy ribbon”) containing Fe as a main component and further containing B and Si is obtained.
  • C carbon
  • the amount of Si is relatively large (specifically, the amount of Si is 8.5 when the total amount of Fe, Si, and B is 100.0 atomic%). If too much C is added to the Fe—B—Si amorphous alloy ribbon having a composition (at least atomic%) (specifically, the total amount of Fe, Si, and B is 100.0 atomic% of C It has been found that the ribbon becomes brittle (when the amount exceeds 0.6 atomic%). Therefore, the present inventor has made the composition of the Fe—B—Si amorphous alloy ribbon in which the amount of Si is 8.5 atomic percent or more when the total amount of Fe, Si, and B is 100.0 atomic percent.
  • the space factor is improved while suppressing brittleness (brittleness).
  • the inventors have obtained knowledge that a high magnetic flux density can be maintained, and the present invention has been completed based on this knowledge. That is, according to the present invention, there is provided an amorphous alloy ribbon that has an excellent space factor, is suppressed in brittleness (brittleness), and maintains a high magnetic flux density.
  • the amount of C is 0.6 atomic% or less, it is possible to suppress the aging deterioration of the amorphous alloy ribbon that may occur when C is added.
  • the amorphous alloy ribbon of the present invention exhibits a high space factor (for example, a space factor of 86% or more).
  • the space factor of the amorphous alloy ribbon of the present invention is preferably 88% or more, and more preferably 89% or more.
  • the “space factor” refers to a space factor (%) measured in accordance with ASTM A900 / A900M-01 (2006).
  • the space factor may be slightly increased by tightening at the time of manufacturing. It is empirically known that the occupancy rate is 88-90%.
  • the amount of C relative to the total amount of Fe, Si and B of 100.0 atomic% is 0.2 atomic% to 0.6 atomic%. %. If the amount of C exceeds 0.6 atomic%, the ribbon becomes brittle. On the other hand, when the amount of C exceeds 0.6 atomic%, the aging deterioration of the amorphous alloy ribbon is promoted, and the period until crystallization may occur may be shortened. On the other hand, in the present invention, the amount of C being 0.2 atomic% or more indicates that the ribbon is substantially contained in C, thereby improving the space factor of the ribbon.
  • the amount of C is preferably 0.3 atomic% to 0.6 atomic% from the viewpoint of further improving the space factor of the ribbon.
  • the amount of Si when the total amount of Fe, Si, and B is 100.0 atomic% is 8.5 atomic% to 9.5 atomic%.
  • the amorphous alloy ribbon of the present invention can be expected to have an effect of suppressing aging deterioration of the ribbon when the amount of Si is 8.5 atomic% or more.
  • the amount of Si is more preferably 9.0 atomic% or more.
  • the ribbon becomes It turns out that it tends to be brittle.
  • the brittleness of the ribbon is remarkably suppressed by setting the amount of C to 0.6 atomic% or less.
  • the amount of Si exceeds 9.5 atomic%, the amount of Fe is relatively reduced, so that the saturation magnetic flux density is lowered.
  • the amount of Si exceeds 9.5 atomic%, the amorphous forming ability tends to decrease.
  • the amount of B when the total amount of Fe, Si, and B is 100.0 atomic% is 10.0 atomic% or more. Less than 12.0 atomic% (preferably 10.0 atomic% to 11.5 atomic%).
  • the amount of B is less than 10.0 atomic%, the crystallization temperature is lowered and the stability of the amorphous phase is impaired.
  • the amount of B is 12.0 atomic% or more, the raw material cost increases, which is not preferable. For this reason, the amount of B is less than 12.0 atomic%, but is preferably 11.5 atomic% or less.
  • the amount of B is preferably 10.5 atomic% or more, and more preferably 11.0 atomic% or more from the viewpoint of further improving the amorphous forming ability.
  • the amount of Fe when the total amount of Fe, Si, and B is 100.0 atomic% is 8% of Si.
  • the amount of Fe is specifically more than 78.5 atomic% and 81.5 atomic% or less, preferably 79.0 atomic% to 81.5 atomic%, more preferably 79.0 atomic%.
  • the amount of Fe is 81.0 atomic% or less, the crystallization temperature becomes higher and the thermal stability is further improved.
  • a preferable combination of the amount of Fe, the amount of Si, and the amount of B is such that the amount of Fe is 79.0 atomic percent to 81.5 atomic percent (more preferably 79.0 atomic percent to 81.0 atomic percent). %, More preferably 79.0 atomic% to 80.5 atomic%), the amount of Si is 8.5 atomic% to 9.5 atomic%, and the amount of B is 10.0 atomic% or more and 12.
  • the combination is less than 0 atomic% (preferably 10.0 atomic% to 11.5 atomic%), and the more preferable combination is that the amount of Fe is 79.0 atomic% to 80.0 atomic%, A combination in which the amount is 8.5 atomic percent to 9.5 atomic percent and the amount of B is 10.5 atomic percent to 11.5 atomic percent, and a particularly preferred combination is that the amount of Fe is 79.0 atomic percent % To 80.0 atomic%, and the amount of Si is 9.0 atomic% to 9.5 atomic% The amount of B is a combination of 11.0 atomic% to 11.5 atomic%.
  • the amorphous alloy ribbon of the present invention contains inevitable impurities in addition to the above-described elements (Fe, Si, B, and C).
  • the inevitable impurities refer to impurities that are inevitably mixed in the manufacturing process of the amorphous alloy ribbon or the master alloy or molten alloy as a raw material thereof.
  • the inevitable impurities include Mn, S, Cr, P, Ti, Ni, Al, Co, Zr, Mo, and Cu.
  • Si and B dominate the physical properties of the amorphous alloy ribbon, and the influence of the impurities is small.
  • the thickness (plate thickness) of the amorphous alloy ribbon of the present invention is 10 ⁇ m to 40 ⁇ m. If the thickness is less than 10 ⁇ m, the mechanical strength of the ribbon tends to be insufficient. From this viewpoint, the thickness is 10 ⁇ m or more, preferably 15 ⁇ m or more, and more preferably 20 ⁇ m or more. On the other hand, when the thickness exceeds 40 ⁇ m, it tends to be difficult to stably obtain an amorphous phase. From this viewpoint, the thickness is 40 ⁇ m or less, preferably 35 ⁇ m or less, and more preferably 30 ⁇ m or less.
  • the width of the amorphous alloy ribbon of the present invention is 100 mm to 300 mm.
  • the width is 100 mm or more, a practical transformer can be suitably produced. From this viewpoint, the width is 100 mm or more, and more preferably 125 mm or more.
  • the width exceeds 300 mm, it is difficult to obtain a thin ribbon having a uniform thickness in the width direction, and the shape is not uniform, so that it is partially embrittled or the magnetic flux density (B1) is lowered. From these viewpoints, the width is 300 mm or less, and more preferably 275 mm or less.
  • the method for producing the amorphous alloy ribbon of the present invention is not particularly limited, and for example, a known method such as a liquid quenching method (single roll method, twin roll method, centrifugal method, etc.) can be used.
  • a known method such as a liquid quenching method (single roll method, twin roll method, centrifugal method, etc.) can be used.
  • the single roll method is a manufacturing method with relatively simple manufacturing equipment and capable of stable manufacturing, and has excellent industrial productivity.
  • FIG. 1 is a schematic sectional view conceptually showing an embodiment of an amorphous alloy ribbon manufacturing apparatus suitable for manufacturing the amorphous alloy ribbon of the present invention.
  • An amorphous alloy ribbon manufacturing apparatus 100 shown in FIG. 1 is an amorphous alloy ribbon manufacturing apparatus using a single roll method. As shown in FIG. 1, the amorphous alloy ribbon manufacturing apparatus 100 includes a crucible 20 provided with a molten metal nozzle 10 and a cooling roll 30 whose surface faces the tip of the molten metal nozzle 10.
  • FIG. 1 shows an amorphous alloy ribbon manufacturing apparatus 100 cut along a plane perpendicular to the axial direction of the cooling roll 30 and the width direction of the amorphous alloy ribbon 22C (the two directions are the same). A cross section is shown.
  • the crucible 20 has an internal space that can accommodate the molten alloy 22A that is a raw material for the amorphous alloy ribbon, and the internal space communicates with the molten metal flow path in the molten metal nozzle 10. Thereby, the molten alloy 22A accommodated in the crucible 20 can be discharged to the cooling roll 30 by the molten metal nozzle 10 (in FIG. 1, the discharge direction and the flow direction of the molten alloy 22A are indicated by arrows Q). )
  • the crucible 20 and the molten metal nozzle 10 may be comprised integrally, and may be comprised as a different body.
  • a high frequency coil 40 as a heating means is disposed at least at a part of the periphery of the crucible 20.
  • the crucible 20 in which the master alloy of the amorphous alloy ribbon is accommodated is heated to generate the molten alloy 22A in the crucible 20, or the liquid state of the molten alloy 22A supplied to the crucible 20 from the outside is maintained. It can be done.
  • the molten metal nozzle 10 has an opening (discharge port) for discharging the molten alloy.
  • This opening is preferably a rectangular (slit-shaped) opening.
  • the length of the long side of the rectangular opening is a length corresponding to the width of the amorphous alloy ribbon to be manufactured. Specifically, the length of the long side of the rectangular opening is preferably 100 mm to 300 mm. The lower limit of the length of the long side is more preferably 125 mm. Further, the upper limit of the length of the long side is more preferably 275 mm.
  • the distance between the tip of the molten metal nozzle 10 and the surface of the cooling roll 30 is close enough to form the hot water pool 22B formed by the molten alloy 22A when the molten molten metal 22A is discharged by the molten metal nozzle 10.
  • this distance can be made into the range normally set in a single roll method, 500 micrometers or less are preferable and 300 micrometers or less are more preferable.
  • this distance is preferably 50 ⁇ m or more from the viewpoint of suppressing contact between the tip of the molten metal nozzle 10 and the surface of the cooling roll 30.
  • the cooling roll 30 is configured to be able to rotate in the direction of arrow P.
  • a cooling medium such as water is circulated inside the cooling roll 30, whereby the molten alloy 22 ⁇ / b> A applied (discharged) to the surface of the cooling roll 30 can be cooled to generate an amorphous alloy ribbon 22 ⁇ / b> C.
  • the material of the cooling roll 30 is a material having high thermal conductivity such as Cu, Cu alloy (Cu—Be alloy, Cu—Cr alloy, Cu—Zr alloy, Cu—Zn alloy, Cu—Sn alloy, Cu—Ti alloy, etc.). Is preferred.
  • the surface roughness of the surface of the cooling roll 30 is not particularly limited, but from the viewpoint of the space factor, the arithmetic average roughness (Ra) of the surface of the cooling roll 30 is preferably 0.5 ⁇ m or less, preferably 0.3 ⁇ m or less. More preferred.
  • the arithmetic average roughness (Ra) of the surface of the cooling roll 30 is preferably 0.1 ⁇ m or more from the viewpoint of workability for adjusting the surface roughness.
  • the cooling roll 30 normally used in a single roll method can be used.
  • the diameter of the cooling roll 30 is preferably 200 mm or more, and more preferably 300 mm or more, from the viewpoint of cooling ability. On the other hand, this diameter is more preferably 700 mm or less from the viewpoint of cooling ability.
  • the surface roughness (the arithmetic average roughness Ra) refers to the surface roughness measured according to JIS B 0601 (2001).
  • a peeling gas nozzle 50 is arranged in the vicinity of the surface of the cooling roll 30 (on the downstream side in the rotation direction of the cooling roll 30 from the molten metal nozzle 10).
  • a stripping gas for example, high-pressure gas such as nitrogen gas or compressed air
  • peeling of the amorphous alloy ribbon 22C from the roll 30 is performed more efficiently.
  • the amorphous alloy ribbon manufacturing apparatus 100 has a configuration other than the above-described configuration (for example, a take-up roll for winding the manufactured amorphous alloy ribbon 22C, a hot water reservoir 22B made of molten alloy, or CO 2 gas or N A gas nozzle or the like for spraying two gases or the like.
  • the basic configuration of the amorphous alloy ribbon manufacturing apparatus 100 is based on a conventional amorphous alloy ribbon manufacturing apparatus using a single roll method (for example, Japanese Patent No. 3494371, Japanese Patent No. 3594123, Japanese Patent No. 4244123, Patent (See Japanese Patent No. 4529106).
  • a molten alloy 22A that is a raw material for the amorphous alloy ribbon of the present invention is prepared in the crucible 20.
  • the molten alloy 22A may be a molten alloy obtained by melting the master alloy having the composition of the amorphous alloy ribbon of the present invention.
  • C (carbon) is obtained from the composition of the amorphous alloy ribbon of the present invention.
  • a molten alloy obtained by preparing a mother alloy having a composition excluding the above and dissolving C (carbon) in a molten metal in which the mother alloy is dissolved may be used.
  • the temperature of the molten alloy 22A is not particularly limited, but is preferably 1210 ° C. or higher and 1260 ° C. or higher from the viewpoint of suppressing deposits resulting from the molten alloy 22A from adhering to the wall surface of the molten metal nozzle. It is more preferable. Further, the temperature of the molten alloy 22A is preferably 1410 ° C. or less, and more preferably 1360 ° C. or less, from the viewpoint of suppressing generation of air pockets generated on the contact surface side with the surface of the cooling roll 30.
  • the molten alloy is discharged from the molten metal nozzle 10 to form the hot water pool 22B while forming a coating film of the molten alloy on the surface of the cooling roll 30; This coating film is cooled to form amorphous alloy ribbon 22C.
  • the amorphous alloy ribbon 22C formed on the surface of the cooling roll 30 is peeled off from the surface of the cooling roll 30 by blowing a peeling gas from the peeling gas nozzle 50, and wound into a roll by a winding roll (not shown). Take and collect.
  • the operations from the discharge of molten alloy to the winding (recovery) of the amorphous alloy ribbon are continuously performed, whereby a long amorphous alloy ribbon having a longitudinal length of, for example, 3000 m or more is obtained.
  • the discharge pressure of the molten alloy is preferably 10 kPa or more, and more preferably 15 kPa or more.
  • the discharge pressure is preferably 30 kPa or less, and more preferably 25 kPa or less.
  • the rotational speed of the cooling roll 30 can be made into the range normally set in a single roll method, However, The peripheral speed is 40 m / s or less, More preferably, the peripheral speed is 30 m / s or less. On the other hand, the rotational speed is preferably a peripheral speed of 10 m / s or more, and more preferably a peripheral speed of 20 m / s or more. Further, the temperature of the surface of the cooling roll 30 is preferably 80 ° C. or more, more preferably 100 ° C. or more after 5 seconds or more have passed since the supply of the molten alloy to the surface of the cooling roll 30 is started. On the other hand, this temperature is preferably 300 ° C.
  • the cooling rate of the molten alloy by the cooling roll 30 is preferably 1 ⁇ 10 5 ° C./s or more, and more preferably 1 ⁇ 10 6 ° C./s or more.
  • a molten alloy composed of Fe, Si, B, C and inevitable impurities (hereinafter also referred to as “Fe—Si—B—C alloy molten metal”) was prepared in a crucible.
  • the amorphous alloy ribbon shown in Table 1 below is obtained by melting a master alloy composed of Fe, Si, B, and inevitable impurities, adding carbon to the resulting molten metal, and mixing them.
  • a molten alloy for production was prepared.
  • this Fe—Si—B—C-based alloy molten metal is taken from the opening of the molten metal nozzle having a rectangular (slit shape) opening having a long side length of 142 mm and a short side length of 0.6 mm, It was discharged onto the surface of a rotating cooling roll and rapidly solidified to produce 1000 kg of an amorphous alloy ribbon having a width of 142 mm and a thickness of 25 ⁇ m.
  • the detailed production conditions of the amorphous alloy ribbon were as follows. ⁇ Discharge pressure of molten alloy: 20 kPa ⁇ Cooling roll peripheral speed: 25 m / s -Molten alloy temperature: 1300 ° C ⁇ Distance between molten metal nozzle tip and cooling roll surface: 200 ⁇ m ⁇ Cooling temperature (temperature after 5 seconds or more from the start of the supply of molten alloy to the surface of the cooling roll): 170 ° C.
  • the amounts of Fe, Si, B, and C in the amorphous alloy ribbons of Examples and Comparative Examples are as shown in Table 1 below.
  • the amount of Fe (at%), the amount of Si (at%), and the amount of B (at%) are respectively when the total amount of Fe, Si and B is 100.0 at%.
  • the amount of C (at%) is the amount with respect to the total amount of Fe, Si and B of 100.0 at% (that is, the amount of C added when the total amount is 100.0 at%). These amounts are those measured by ICP emission spectroscopy.
  • ⁇ Brittleness> For the amorphous alloy ribbons of each Example and each Comparative Example, the following evaluation of brittleness (numerization of brittleness) was performed. Table 1 shows the numerical values of the brittleness obtained by the above evaluation. This evaluation result indicates that the smaller the brittleness value is, the more the brittleness is suppressed, and the larger the brittleness value is, the more brittle it is.
  • FIG. 2 is a conceptual diagram schematically showing a sample used for evaluation of brittleness
  • FIG. 3 is a conceptual diagram schematically showing a sample piece after tearing and a tear line in evaluation of brittleness.
  • the brittleness is evaluated by cutting out a sample of 1250 mm in length (one round of the cooling roll) from the amorphous alloy ribbon and dividing the sample into two equal parts in the longitudinal direction (one-dot chain line in FIG. 2). And the two obtained sample pieces were used.
  • a tear operation in which a sample was cut at one end in the longitudinal direction of the sample piece as a tear starting point, and a tear force was applied to the sample piece (hereinafter, this operation is referred to as a “tear operation”). Called). This tearing operation was performed from one end in the longitudinal direction to the other end in the longitudinal direction along the longitudinal direction of the sample piece. In FIG. 3, the tearing direction in the tearing operation is indicated by an arrow R. Next, a tear line actually generated by the tearing operation (for example, a tear line T in FIG. 3) is visually observed, and a step of 6 mm or more (in FIG. 3) generated in the width direction of the sample piece at the tear line.
  • a tear line actually generated by the tearing operation for example, a tear line T in FIG. 3 is visually observed, and a step of 6 mm or more (in FIG. 3) generated in the width direction of the sample piece at the tear line.
  • the brittleness per tear line was evaluated according to the following evaluation criteria. “1 point” in the following evaluation criteria indicates that brittleness is most suppressed, and “5 points” indicates that it is most brittle.
  • the evaluation of the brittleness per tear line is performed at the center part in the width direction of the sample piece, the position (2 places) 6.4 mm from the end part in the width direction of the sample piece, and It performed about each of the position (2 places) of 12.8 mm from the width direction edge part.
  • the evaluation points are indicated by broken lines. The number of evaluation points is 5 for each of the bisected sample pieces, and 10 for each sample. That is, ten tear lines are generated per sample. Next, the average point of brittleness was calculated from the evaluation result for 10 tear lines, and the obtained average point was used as the numerical value of brittleness in the sample.
  • the amount of Fe (at%), the amount of Si (at%), and the amount of B (at%) are amounts when the total amount of Fe, Si, and B is 100.0 at%, respectively.
  • the amount of C (at%) is the amount of Fe, Si, and B with respect to the total amount of 100.0 at% (that is, the amount of C added when the total amount of Fe, Si, and B is 100.0 at%) ).
  • the numerical value of the brittleness indicates that the smaller the value, the more the brittleness is suppressed, and the larger the value, the more brittle.

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PCT/JP2013/056355 2012-03-15 2013-03-07 アモルファス合金薄帯 WO2013137118A1 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IN8435DEN2014 IN2014DN08435A (enrdf_load_stackoverflow) 2012-03-15 2013-03-07
KR1020207001214A KR20200010574A (ko) 2012-03-15 2013-03-07 아몰퍼스 합금 박대
CN201380014114.5A CN104245993A (zh) 2012-03-15 2013-03-07 非晶合金薄带
DE112013001401.7T DE112013001401T8 (de) 2012-03-15 2013-03-07 Band aus amorpher legierung
KR1020147027048A KR20140138222A (ko) 2012-03-15 2013-03-07 아몰퍼스 합금 박대
JP2014504831A JP6123790B2 (ja) 2012-03-15 2013-03-07 アモルファス合金薄帯
US14/384,968 US20150050510A1 (en) 2012-03-15 2013-03-07 Amorphous alloy ribbon

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JP2012058714 2012-03-15
JP2012-058714 2012-03-15

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JP (1) JP6123790B2 (enrdf_load_stackoverflow)
KR (2) KR20200010574A (enrdf_load_stackoverflow)
CN (1) CN104245993A (enrdf_load_stackoverflow)
DE (1) DE112013001401T8 (enrdf_load_stackoverflow)
IN (1) IN2014DN08435A (enrdf_load_stackoverflow)
WO (1) WO2013137118A1 (enrdf_load_stackoverflow)

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Publication number Priority date Publication date Assignee Title
WO2016094385A1 (en) * 2014-12-11 2016-06-16 Metglas, Inc. Fe-Si-B-C-BASED AMORPHOUS ALLOY RIBBON AND TRANSFORMER CORE FORMED THEREBY
WO2017090402A1 (ja) * 2015-11-26 2017-06-01 日立金属株式会社 Ｆｅ基アモルファス合金リボン
EP3225712A4 (en) * 2014-11-25 2018-06-06 Hitachi Metals, Ltd. Amorphous alloy ribbon and method for manufacturing same

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ES2844728T3 (es) * 2015-03-12 2021-07-22 Montagnani Guglielmo Método y dispositivo para fabricar transformadores con un núcleo realizado en material amorfo, y transformador producido de este modo
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JP6478061B2 (ja) * 2016-04-04 2019-03-06 Ｊｆｅスチール株式会社 非晶質合金薄帯
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