JPS5262121A - Process for improving toughness of boron steel - Google Patents

Process for improving toughness of boron steel

Info

Publication number
JPS5262121A
JPS5262121A JP13839975A JP13839975A JPS5262121A JP S5262121 A JPS5262121 A JP S5262121A JP 13839975 A JP13839975 A JP 13839975A JP 13839975 A JP13839975 A JP 13839975A JP S5262121 A JPS5262121 A JP S5262121A
Authority
JP
Japan
Prior art keywords
boron
boron steel
improving toughness
steel
temperature
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
JP13839975A
Other languages
Japanese (ja)
Inventor
Shuji Kinoshita
Haruo Kaji
Kenji Koide
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP13839975A priority Critical patent/JPS5262121A/en
Publication of JPS5262121A publication Critical patent/JPS5262121A/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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering

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 Steel (AREA)

Abstract

PURPOSE:To improve toughness of boron steel by the formation of coarse boron crystals caused by heating the boron steel at a temperature above penetration temperature of boron ''B'' (950 deg.C), and cooling slowly over the coares boron precipitation temperature range.
JP13839975A 1975-11-17 1975-11-17 Process for improving toughness of boron steel Pending JPS5262121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13839975A JPS5262121A (en) 1975-11-17 1975-11-17 Process for improving toughness of boron steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13839975A JPS5262121A (en) 1975-11-17 1975-11-17 Process for improving toughness of boron steel

Publications (1)

Publication Number Publication Date
JPS5262121A true JPS5262121A (en) 1977-05-23

Family

ID=15221033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13839975A Pending JPS5262121A (en) 1975-11-17 1975-11-17 Process for improving toughness of boron steel

Country Status (1)

Country Link
JP (1) JPS5262121A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375377A (en) * 1981-02-25 1983-03-01 Sumitomo Metal Industries, Limited Steels which are useful in fabricating pressure vessels
WO2009042100A2 (en) * 2007-09-21 2009-04-02 Siemens Energy, Inc. Crack-free erosion resistant coatings on steels

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375377A (en) * 1981-02-25 1983-03-01 Sumitomo Metal Industries, Limited Steels which are useful in fabricating pressure vessels
WO2009042100A2 (en) * 2007-09-21 2009-04-02 Siemens Energy, Inc. Crack-free erosion resistant coatings on steels
US7758925B2 (en) 2007-09-21 2010-07-20 Siemens Energy, Inc. Crack-free erosion resistant coatings on steels
WO2009042100A3 (en) * 2007-09-21 2010-09-10 Siemens Energy, Inc. Crack-free erosion resistant coatings on steels

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