JPS5229419A - Heat treatment method to improve toughness of steel - Google Patents

Heat treatment method to improve toughness of steel

Info

Publication number
JPS5229419A
JPS5229419A JP10498775A JP10498775A JPS5229419A JP S5229419 A JPS5229419 A JP S5229419A JP 10498775 A JP10498775 A JP 10498775A JP 10498775 A JP10498775 A JP 10498775A JP S5229419 A JPS5229419 A JP S5229419A
Authority
JP
Japan
Prior art keywords
steel
heat treatment
treatment method
improve toughness
toughness
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.)
Pending
Application number
JP10498775A
Other languages
Japanese (ja)
Inventor
Akiomi Kono
Akihiko Yamamoto
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP10498775A priority Critical patent/JPS5229419A/en
Publication of JPS5229419A publication Critical patent/JPS5229419A/en
Pending 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
    • C21D1/785—Thermocycling

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)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE:A heat treatment method of steel having AC1 and AC3 transformation points to improve internal (non-refiend) toughness, in which even large steel products are not affected by mass effect.
JP10498775A 1975-09-01 1975-09-01 Heat treatment method to improve toughness of steel Pending JPS5229419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10498775A JPS5229419A (en) 1975-09-01 1975-09-01 Heat treatment method to improve toughness of steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10498775A JPS5229419A (en) 1975-09-01 1975-09-01 Heat treatment method to improve toughness of steel

Publications (1)

Publication Number Publication Date
JPS5229419A true JPS5229419A (en) 1977-03-05

Family

ID=14395430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10498775A Pending JPS5229419A (en) 1975-09-01 1975-09-01 Heat treatment method to improve toughness of steel

Country Status (1)

Country Link
JP (1) JPS5229419A (en)

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