JPS57177920A - Enhancing method for toughness of weld metal - Google Patents

Enhancing method for toughness of weld metal

Info

Publication number
JPS57177920A
JPS57177920A JP6274881A JP6274881A JPS57177920A JP S57177920 A JPS57177920 A JP S57177920A JP 6274881 A JP6274881 A JP 6274881A JP 6274881 A JP6274881 A JP 6274881A JP S57177920 A JPS57177920 A JP S57177920A
Authority
JP
Japan
Prior art keywords
weld metal
toughness
reinforcement
reduction
reduction ratio
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
JP6274881A
Other languages
Japanese (ja)
Other versions
JPS6362566B2 (en
Inventor
Sadao Tanaka
Yuichi Komizo
Tamotsu Hashimoto
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP6274881A priority Critical patent/JPS57177920A/en
Publication of JPS57177920A publication Critical patent/JPS57177920A/en
Publication of JPS6362566B2 publication Critical patent/JPS6362566B2/ja
Granted 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints

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)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE:To enhance the toughness of a weld metal by reducing the reinforcement of the weld metal at a specified surface temp. and a specified reduction ratio. CONSTITUTION:The reinforcement of a weld metal is cooled or reheated and reduced by >=10% of the height at a surface temp. just above the Ar3 transformation point to the Ar1 transformation point. The reduced reinforcement is cooled as it is, or it is further subjected to hardening, tempering or normalizing. By said reduction the influence of dendrite is almost eliminated, and the toughness is enhanced. By increasing the reduction ratio, the breaking of dendrite proceeds. When the reduction ratio is 10% or slightly above 10%, it is effective to carry out the reduction by 1 pass.
JP6274881A 1981-04-25 1981-04-25 Enhancing method for toughness of weld metal Granted JPS57177920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6274881A JPS57177920A (en) 1981-04-25 1981-04-25 Enhancing method for toughness of weld metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6274881A JPS57177920A (en) 1981-04-25 1981-04-25 Enhancing method for toughness of weld metal

Publications (2)

Publication Number Publication Date
JPS57177920A true JPS57177920A (en) 1982-11-01
JPS6362566B2 JPS6362566B2 (en) 1988-12-02

Family

ID=13209325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6274881A Granted JPS57177920A (en) 1981-04-25 1981-04-25 Enhancing method for toughness of weld metal

Country Status (1)

Country Link
JP (1) JPS57177920A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02113672U (en) * 1989-02-28 1990-09-11
JPH02113671U (en) * 1989-02-28 1990-09-11

Also Published As

Publication number Publication date
JPS6362566B2 (en) 1988-12-02

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