GB482558A - Improvements in and relating to ferro-nickel alloys - Google Patents

Improvements in and relating to ferro-nickel alloys

Info

Publication number
GB482558A
GB482558A GB16465/37A GB1646537A GB482558A GB 482558 A GB482558 A GB 482558A GB 16465/37 A GB16465/37 A GB 16465/37A GB 1646537 A GB1646537 A GB 1646537A GB 482558 A GB482558 A GB 482558A
Authority
GB
United Kingdom
Prior art keywords
ferro
temperature
relating
cold working
nickel 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.)
Expired
Application number
GB16465/37A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB482558A publication Critical patent/GB482558A/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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/78—Combined heat-treatments not provided for above

Landscapes

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

Abstract

Ferro-magnetic alloys, particularly those having more than 30 per cent of nickel, are treated to produce stability and low hysteresis by hot or cold working, annealing at a temperature of 600-900 DEG C., preferably 700 DEG C. for at least one hour, cold working, annealing above the temperature of re-crystallization, between 1000 and 1200 DEG C., and finally cold working. The alloy may then be tempered at a temperature below the re-crystallization temperature. Specification 463,030 is referred to.
GB16465/37A 1936-06-13 1937-06-14 Improvements in and relating to ferro-nickel alloys Expired GB482558A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE482558X 1936-06-13

Publications (1)

Publication Number Publication Date
GB482558A true GB482558A (en) 1938-03-31

Family

ID=6542845

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16465/37A Expired GB482558A (en) 1936-06-13 1937-06-14 Improvements in and relating to ferro-nickel alloys

Country Status (1)

Country Link
GB (1) GB482558A (en)

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