GB1172748A - Improvements in Process of Producing Plastically Deformed Iron Rhodium Base Alloy Bodies. - Google Patents

Improvements in Process of Producing Plastically Deformed Iron Rhodium Base Alloy Bodies.

Info

Publication number
GB1172748A
GB1172748A GB55464/67A GB5546467A GB1172748A GB 1172748 A GB1172748 A GB 1172748A GB 55464/67 A GB55464/67 A GB 55464/67A GB 5546467 A GB5546467 A GB 5546467A GB 1172748 A GB1172748 A GB 1172748A
Authority
GB
United Kingdom
Prior art keywords
alloy
magnetic
cold
base alloy
plastically deformed
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.)
Expired
Application number
GB55464/67A
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.)
General Electric Co
Original Assignee
General Electric Co
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
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB1172748A publication Critical patent/GB1172748A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

1,172,748. Altering physical structure. GENERAL ELECTRIC CO. 6 Dec., 1967 [13 Feb,. 1967], No. 55464/67. Heading B3V. [Also in Division C7] An iron-rhodium alloy exhibiting magnetic transition on heating is formed by hot and cold reducing the alloy to required final dimensions to form a disordered F.C.C. structure, after which the alloy is heat treated at a temperature not less than 235‹ C. to produce an ordered B.C.C. structure. In an embodiment, an ironrhodium ingot is vacuum annealed at 850- 1000‹ C., e.g. 975‹ C. for 26 hrs., and hot worked at 850-1000‹ C. from 0À3 inch to 25 or 50 mils, followed by cold rolling to 10 mils, the alloy being annealed at 950‹ C. between the cold rolling stages. After heat treating at 1000‹ C., the alloy exhibited an abrupt non- magnetic to magnetic change at about 57‹ C. A more gradual magnetic transition may be produced by cold working the alloy by up to 50% in thickness after the final heat treatment. The alloy may contain additional alloying elements and may have a composition as disclosed in U.S.A. Specifications 3,144,324 and 3,144,325.
GB55464/67A 1967-02-13 1967-12-06 Improvements in Process of Producing Plastically Deformed Iron Rhodium Base Alloy Bodies. Expired GB1172748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61543367A 1967-02-13 1967-02-13

Publications (1)

Publication Number Publication Date
GB1172748A true GB1172748A (en) 1969-12-03

Family

ID=24465341

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55464/67A Expired GB1172748A (en) 1967-02-13 1967-12-06 Improvements in Process of Producing Plastically Deformed Iron Rhodium Base Alloy Bodies.

Country Status (4)

Country Link
US (1) US3637442A (en)
DE (1) DE1583983A1 (en)
FR (1) FR1554316A (en)
GB (1) GB1172748A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10143680C1 (en) * 2001-08-30 2003-05-08 Leibniz Inst Fuer Festkoerper Process for the production of metal strips with high-grade cube texture

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860458A (en) * 1965-02-26 1975-01-14 Ishifuku Metal Ind Method of making a magnetic body
US5440233A (en) * 1993-04-30 1995-08-08 International Business Machines Corporation Atomic layered materials and temperature control for giant magnetoresistive sensor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089795A (en) * 1959-11-18 1963-05-14 Westinghouse Electric Corp Method for producing fiber texture and cube-texture sheets of iron-base alloys
US3144325A (en) * 1962-05-03 1964-08-11 Du Pont Magnetic compositions containing iron, rhodium, and at least one member of the lanthanide series
US3144324A (en) * 1962-05-03 1964-08-11 Du Pont Magnetic compositions containing iron, rhodium, and selected elements from groups ii-, iii-a, iv-a, v-a and vi-a
US3415695A (en) * 1966-04-29 1968-12-10 Gen Electric Process for producing iron-rhodium alloys having improved magnetic transition properties

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10143680C1 (en) * 2001-08-30 2003-05-08 Leibniz Inst Fuer Festkoerper Process for the production of metal strips with high-grade cube texture

Also Published As

Publication number Publication date
US3637442A (en) 1972-01-25
DE1583983A1 (en) 1970-10-15
FR1554316A (en) 1969-01-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees