FR2236944A1 - Monolithic metal parts with magnetic and non magnetic zones - zone heat treatment of alloy steel to avoid joining magnetic and non magnetic materials - Google Patents

Monolithic metal parts with magnetic and non magnetic zones - zone heat treatment of alloy steel to avoid joining magnetic and non magnetic materials

Info

Publication number
FR2236944A1
FR2236944A1 FR7325227A FR7325227A FR2236944A1 FR 2236944 A1 FR2236944 A1 FR 2236944A1 FR 7325227 A FR7325227 A FR 7325227A FR 7325227 A FR7325227 A FR 7325227A FR 2236944 A1 FR2236944 A1 FR 2236944A1
Authority
FR
France
Prior art keywords
magnetic
degrees
zones
metal parts
heat treatment
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
FR7325227A
Other languages
French (fr)
Other versions
FR2236944B1 (en
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.)
TSNII CHERNOJ METALLURG
Original Assignee
TSNII CHERNOJ METALLURG
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 TSNII CHERNOJ METALLURG filed Critical TSNII CHERNOJ METALLURG
Priority to FR7325227A priority Critical patent/FR2236944A1/en
Publication of FR2236944A1 publication Critical patent/FR2236944A1/en
Application granted granted Critical
Publication of FR2236944B1 publication Critical patent/FR2236944B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
    • H01F1/0306—Metals or alloys, e.g. LAVES phase alloys of the MgCu2-type
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

One-piece metal parts contg. magnetic and non-magnetic zones, made by heat-treating a metal blank where one portion is heated to 450-1000 degrees C, and the other portion to between 1000 degrees C, and m.pt. the blank consisting of a metal which acquires a non-magnetic structure through ageing, and magnetic characteristics by hardening at high temp. The zone which is to be non-magnetic is heated to 450-1000 degrees C, and cooled, whereas the magnetic zone is heated between 1000 degrees C, and the m.pt. to produce a magnetic structure and quenched at a speed which prevents the formation of a non-magnetic structure. The pref. heat-treatment temp. for the magnetic zone is 1050-1350 degrees C, and a pref. compsn. is (by % wt) is not >0.1 C, 7-12 Mn, 11-30 Cr, balance Fe, which may also include is not >5 Ni, >=1 of Mo, W, Nb in amt. 1-5, and about 1 Ti. During the formation of a magnetic structure the blank may be cooled in a magnetic field. The process avoids the necessity to join magnetic and non-magnetic components.
FR7325227A 1973-07-10 1973-07-10 Monolithic metal parts with magnetic and non magnetic zones - zone heat treatment of alloy steel to avoid joining magnetic and non magnetic materials Granted FR2236944A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7325227A FR2236944A1 (en) 1973-07-10 1973-07-10 Monolithic metal parts with magnetic and non magnetic zones - zone heat treatment of alloy steel to avoid joining magnetic and non magnetic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7325227A FR2236944A1 (en) 1973-07-10 1973-07-10 Monolithic metal parts with magnetic and non magnetic zones - zone heat treatment of alloy steel to avoid joining magnetic and non magnetic materials

Publications (2)

Publication Number Publication Date
FR2236944A1 true FR2236944A1 (en) 1975-02-07
FR2236944B1 FR2236944B1 (en) 1976-04-30

Family

ID=9122329

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7325227A Granted FR2236944A1 (en) 1973-07-10 1973-07-10 Monolithic metal parts with magnetic and non magnetic zones - zone heat treatment of alloy steel to avoid joining magnetic and non magnetic materials

Country Status (1)

Country Link
FR (1) FR2236944A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007994A1 (en) * 1978-07-26 1980-02-20 Vacuumschmelze GmbH Magnetic core made of a soft magnetic amorphous alloy

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007994A1 (en) * 1978-07-26 1980-02-20 Vacuumschmelze GmbH Magnetic core made of a soft magnetic amorphous alloy

Also Published As

Publication number Publication date
FR2236944B1 (en) 1976-04-30

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Legal Events

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ST Notification of lapse