CA2034632A1 - Hot worked rare earth-iron-carbon magnets - Google Patents

Hot worked rare earth-iron-carbon magnets

Info

Publication number
CA2034632A1
CA2034632A1 CA 2034632 CA2034632A CA2034632A1 CA 2034632 A1 CA2034632 A1 CA 2034632A1 CA 2034632 CA2034632 CA 2034632 CA 2034632 A CA2034632 A CA 2034632A CA 2034632 A1 CA2034632 A1 CA 2034632A1
Authority
CA
Canada
Prior art keywords
iron
rare earth
hot worked
carbon
magnets
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.)
Granted
Application number
CA 2034632
Other languages
French (fr)
Other versions
CA2034632C (en
Inventor
Carlton Dwight Fuerst
Earl George Brewer
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.)
Magnequench International LLC
Original Assignee
General Motors Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US07/622,690 external-priority patent/US5085716A/en
Application filed by General Motors Corp filed Critical General Motors Corp
Publication of CA2034632A1 publication Critical patent/CA2034632A1/en
Application granted granted Critical
Publication of CA2034632C publication Critical patent/CA2034632C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/04Making non-ferrous alloys by powder metallurgy
    • C22C1/0433Nickel- or cobalt-based alloys
    • C22C1/0441Alloys based on intermetallic compounds of the type rare earth - Co, Ni
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047Alloys characterised by their composition
    • H01F1/053Alloys characterised by their composition containing rare earth metals
    • H01F1/055Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/058Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IVa elements, e.g. Gd2Fe14C

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

Anisotropic permanent magnets consisting essentially of RE2TM14C are prepared by hot working suitable iron-neodymium/praseodymium-carbon containing alloys so as to produce deformed fine grains of the above essential magnetic phase.
CA 2034632 1990-02-20 1991-01-21 Hot worked rare earth-iron-carbon magnets Expired - Fee Related CA2034632C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US622,690 1984-06-20
US48212490A 1990-02-20 1990-02-20
USC.I.P.482,124 1990-02-20
US07/622,690 US5085716A (en) 1990-02-20 1990-12-05 Hot worked rare earth-iron-carbon magnets

Publications (2)

Publication Number Publication Date
CA2034632A1 true CA2034632A1 (en) 1991-08-21
CA2034632C CA2034632C (en) 1997-05-13

Family

ID=27047167

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2034632 Expired - Fee Related CA2034632C (en) 1990-02-20 1991-01-21 Hot worked rare earth-iron-carbon magnets

Country Status (3)

Country Link
EP (1) EP0443647A1 (en)
JP (1) JPH05152119A (en)
CA (1) CA2034632C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109695001A (en) * 2017-10-20 2019-04-30 鞍钢股份有限公司 Novel rare earth hot work die steel and preparation method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5486240A (en) * 1994-04-25 1996-01-23 Iowa State University Research Foundation, Inc. Carbide/nitride grain refined rare earth-iron-boron permanent magnet and method of making
JPH08100201A (en) * 1994-09-30 1996-04-16 Takeshi Masumoto Composite ultrafine particles and method for producing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8702992A (en) * 1987-12-11 1989-07-03 Philips Nv BORIUM-FREE HARD-MAGNETIC MATERIAL, CONTAINING A MAGNETIC TETRAGONAL PHASE.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109695001A (en) * 2017-10-20 2019-04-30 鞍钢股份有限公司 Novel rare earth hot work die steel and preparation method thereof
CN109695001B (en) * 2017-10-20 2020-09-29 鞍钢股份有限公司 A new type of rare earth hot work die steel and preparation method thereof

Also Published As

Publication number Publication date
CA2034632C (en) 1997-05-13
JPH05152119A (en) 1993-06-18
JPH0584043B2 (en) 1993-11-30
EP0443647A1 (en) 1991-08-28

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed