EP0160166A1 - Alliages de métal amorphes à magnétostriction basse - Google Patents

Alliages de métal amorphes à magnétostriction basse Download PDF

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Publication number
EP0160166A1
EP0160166A1 EP85101588A EP85101588A EP0160166A1 EP 0160166 A1 EP0160166 A1 EP 0160166A1 EP 85101588 A EP85101588 A EP 85101588A EP 85101588 A EP85101588 A EP 85101588A EP 0160166 A1 EP0160166 A1 EP 0160166A1
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EP
European Patent Office
Prior art keywords
ranges
magnetostriction
glasses
alloys
metal alloys
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP85101588A
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German (de)
English (en)
Inventor
Robert Charles O'handley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Allied Corp
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Allied Corp
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Filing date
Publication date
Application filed by Allied Corp filed Critical Allied Corp
Priority to EP85101588A priority Critical patent/EP0160166A1/fr
Publication of EP0160166A1 publication Critical patent/EP0160166A1/fr
Withdrawn legal-status Critical Current

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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
    • C22C45/04—Amorphous alloys with nickel or cobalt as the major constituent

Definitions

  • This invention relates to amorphous metal alloys and, more particularly, to cobalt rich amorphous metal alloys that include certain transition metal and metalloid elements.
  • Metallic glasses generally show resistivities greater than 100.micro ohm cm, whereas crystalline and polycrystalline magnetic metals generally show resistivities below 50 micro ohm cm. Also, because of their randomly disordered structures, metallic glasses are typically -isotropic in their physical properties, including their magnetization. Because of these two characteristics, metallic glasses have an initial advantage over conventional magnetic metals. However, metallic glasses do not generally show zero magnetostriction. When zero magnetostriction glasses can be found they are generally good soft magnetic metals (R.C. O' Handley, B.A.
  • the present invention provides low magnetostriction and zero magnetostriction glassy alloys that are easy to fabricate and thermally stable.
  • the alloys are at least about 50 percent glassy and consist essentially of compositions defined by the formula:
  • a preferred magnetic alloy is one, wherein y ranges from about 0.3 to 0.6 or between 0.60 to 0.80 and z is respectively less than 0.2 or less than 0.15 when T is more than 50 percent of at least one of Cr and V, said alloy having a value of magnetostriction of about -6 x 10-6 to +4 x 10 -6 and a saturation induction of about 0.1 to 0.9T.
  • Special magnetic alloys according to the invention have a composition selected from the group consisting of Co 53.7 Ni 15.3 Fe 5.5 Mn 5.5 B 20 , Co 41 Ni 30 Fe 5 Mn 4 B 20 , Co 58 Ni 12 Fe 6 Mn 4 B 20 , Co 58 Ni 12 Fe 6 Mn 4 B 20 , Co 51 Ni 18 Fe 8 Cr 3 B 20 , Co 56 Ni 12 Fe 6 Cr 6 B 20' C040Ni30Fe5V5B20' Co 52 Ni 18 Fe 8 Mn 2 B 20 , Ni 45 Co 26.5 Fe 7.5 .Mn 1 B 20 , Co 39 Ni 30 Cr 6 Fe 5 B 20 , Co 51 Ni 18 Fe 9 Cr 2 B 20 and Co 59 Ni 12 Fe 6 V 5 B 20 .
  • the amorphous alloys of the invention can be formed by cooling a melt of the composition at a rate of at least about 10 5 °C/sec.
  • a variety of techniques are available, as is now well-known in the art, for fabricating splat- quenched foils and rapid-quenched continuous ribbons, wire, sheet, etc.
  • a particular composition is selected, powders of the requisite elements (or of materials that decompose to form the elements, such as nickel-borides, etc.) in the desired proportions are melted and homogenized, and the molten alloy is rapidly quenched either on a chill surface, such as a rotating cooled cylinder, or in a suitable fluid medium,. such as a chilled brine solution.
  • the amorphous alloys may be formed in air. However, superior mechanical properties are achieved by forming these amorphous alloys in a partial vacuum with absolute pressure less than about 5.5 cm of Hg, and preferably about 100 ⁇ m to 1 cm of Hg, as disclosed in U.S. Patent No. 4,154,283 to Ray et al.
  • the amorphous metal alloys are at least 50 percent amorphous, and preferably at least 80 per cent amorphous, as measured by X-ray diffraction. However, a substantial degree of amorphousness approaching 100 percent amorphous is obtained by forming these amorphous metal alloys in a partial vacuum. Ductility is thereby improved, and such alloys possessing a substantial degree of amorphousness are accordingly preferred.
  • Ribbons of these alloys find use in soft magnetic applications and an applications requiring low magnetostriction, high thermal stability (e.g., stable up to about 100°C) and excellent fabricability.
  • the magnetostriction measurements were made in fields up to 4 KOe with metal foil strain gauges (as reported in more detail by R.C. O'Handley in Solid State Communications, Vol. 22, p. 485, 1977). The accuracy of these measurements is considered to be within 10 per cent of full strain and their strain sensitivity is on the order of 10-7.
  • Co-rich glass compositions with positive and negative magnetostriction can be added linearly to give zero magnetostriction.
  • ⁇ s for Co 70 Fe 10 B 20 and Co 80 B 20 glasses are +4 and -4 x 10 , respectively.
  • Ni-rich glasses are more easily made and are more stable if the "late" transition metal Ni is balanced to a certain extent by an "early" TM, e.g., Mn, Cr, V.
  • TM e.g., Mn, Cr, V.
  • examples of such glasses include Ni 50 Mn 30 B 20 , Ni 60 Cr 20 B 20 , or Ni 70 V 10 B 20 .

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
EP85101588A 1981-11-26 1981-11-26 Alliages de métal amorphes à magnétostriction basse Withdrawn EP0160166A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP85101588A EP0160166A1 (fr) 1981-11-26 1981-11-26 Alliages de métal amorphes à magnétostriction basse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85101588A EP0160166A1 (fr) 1981-11-26 1981-11-26 Alliages de métal amorphes à magnétostriction basse

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP81109913.4 Division 1981-11-26

Publications (1)

Publication Number Publication Date
EP0160166A1 true EP0160166A1 (fr) 1985-11-06

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Family Applications (1)

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EP85101588A Withdrawn EP0160166A1 (fr) 1981-11-26 1981-11-26 Alliages de métal amorphes à magnétostriction basse

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EP (1) EP0160166A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003699A1 (fr) * 1986-11-03 1988-05-19 Allied Corporation Alliages metalliques vitreux magnetostrictifs proches de zero pour applications haute frequence
GB2233345A (en) * 1989-06-29 1991-01-09 Pitney Bowes Inc Ferromagnetic alloys with high nickel content and high permeability
US5037494A (en) * 1987-05-21 1991-08-06 Vacuumschmelze Gmbh Amorphous alloy for strip-shaped sensor elements
WO2022006978A1 (fr) * 2020-07-10 2022-01-13 瑞声声学科技(深圳)有限公司 Poudre d'alliage auxiliaire basse température, alliage magnétique doux et procédé de préparation associé

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2553003A1 (de) * 1974-11-29 1976-08-12 Allied Chem Magnetvorrichtungen
US4038073A (en) * 1976-03-01 1977-07-26 Allied Chemical Corporation Near-zero magnetostrictive glassy metal alloys with high saturation induction
US4056411A (en) * 1976-05-14 1977-11-01 Ho Sou Chen Method of making magnetic devices including amorphous alloys
US4081298A (en) * 1976-09-07 1978-03-28 Allied Chemical Corporation Heat treatment of iron-nickel-phosphorus-boron glassy metal alloys
US4150981A (en) * 1977-08-15 1979-04-24 Allied Chemical Corporation Glassy alloys containing cobalt, nickel and iron having near-zero magnetostriction and high saturation induction
DE2824749A1 (de) * 1978-06-06 1979-12-13 Vacuumschmelze Gmbh Induktives bauelement und verfahren zu seiner herstellung
EP0021101A1 (fr) * 1979-06-15 1981-01-07 Vacuumschmelze GmbH Alliage amorphe magnétiquement doux
US4288260A (en) * 1977-12-16 1981-09-08 Matsushita Electric Industrial Co. Ltd. Method of heat treatments of amorphous alloy ribbons

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2553003A1 (de) * 1974-11-29 1976-08-12 Allied Chem Magnetvorrichtungen
US4038073A (en) * 1976-03-01 1977-07-26 Allied Chemical Corporation Near-zero magnetostrictive glassy metal alloys with high saturation induction
US4056411A (en) * 1976-05-14 1977-11-01 Ho Sou Chen Method of making magnetic devices including amorphous alloys
US4081298A (en) * 1976-09-07 1978-03-28 Allied Chemical Corporation Heat treatment of iron-nickel-phosphorus-boron glassy metal alloys
US4150981A (en) * 1977-08-15 1979-04-24 Allied Chemical Corporation Glassy alloys containing cobalt, nickel and iron having near-zero magnetostriction and high saturation induction
US4288260A (en) * 1977-12-16 1981-09-08 Matsushita Electric Industrial Co. Ltd. Method of heat treatments of amorphous alloy ribbons
DE2824749A1 (de) * 1978-06-06 1979-12-13 Vacuumschmelze Gmbh Induktives bauelement und verfahren zu seiner herstellung
EP0021101A1 (fr) * 1979-06-15 1981-01-07 Vacuumschmelze GmbH Alliage amorphe magnétiquement doux

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, unexamined applications, section C, vol. 2, no. 136, November 11, 1978 THE PATENT OFFICE JAPANESE GOVERNMENT page 2948 C 78 * JP - A - 53-102 219 ( TOKYO DENKI ) * *
PATENT ABSTRACTS OF JAPAN, unexamined applications, section C, vol. 2, no. 155, December 26, 1978 THE PATENT OFFICE JAPANESE GOVERNMENT page 3718 C 78 * JP - A - 53-120 625 (MATSUSHITA DENKI ) * *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003699A1 (fr) * 1986-11-03 1988-05-19 Allied Corporation Alliages metalliques vitreux magnetostrictifs proches de zero pour applications haute frequence
US5037494A (en) * 1987-05-21 1991-08-06 Vacuumschmelze Gmbh Amorphous alloy for strip-shaped sensor elements
GB2233345A (en) * 1989-06-29 1991-01-09 Pitney Bowes Inc Ferromagnetic alloys with high nickel content and high permeability
GB2233345B (en) * 1989-06-29 1994-02-16 Pitney Bowes Inc Ferromagnetic alloys with high nickel content and high permeability
WO2022006978A1 (fr) * 2020-07-10 2022-01-13 瑞声声学科技(深圳)有限公司 Poudre d'alliage auxiliaire basse température, alliage magnétique doux et procédé de préparation associé

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