JPS5461981A - Embrittlement judgement method of austenite base stainless steel welding metal - Google Patents

Embrittlement judgement method of austenite base stainless steel welding metal

Info

Publication number
JPS5461981A
JPS5461981A JP12899277A JP12899277A JPS5461981A JP S5461981 A JPS5461981 A JP S5461981A JP 12899277 A JP12899277 A JP 12899277A JP 12899277 A JP12899277 A JP 12899277A JP S5461981 A JPS5461981 A JP S5461981A
Authority
JP
Japan
Prior art keywords
welding metal
stainless steel
embrittlement
steel welding
ferrite
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
JP12899277A
Other languages
Japanese (ja)
Other versions
JPS595860B2 (en
Inventor
Takeru Matsumoto
Yoshihiro Tada
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP52128992A priority Critical patent/JPS595860B2/en
Publication of JPS5461981A publication Critical patent/JPS5461981A/en
Publication of JPS595860B2 publication Critical patent/JPS595860B2/en
Expired legal-status Critical Current

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  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE: To judge the embrittlement of stainless steel welding metal by defining the loss of δ ferrite quantity as less than 5% with a ferrite meter.
CONSTITUTION: The heat treatment having been carried out with an austenite base stainless steel welding metal for 5 hours, 15 hours B and 30 hours A at 700°C indicates that irrespective of the large or small of the initial ferrite quantity or variations in heating conditions there is possibility of causing cracking in the welding metal in all cases when the loss of δ ferrite exceeds 5% and no cracking occurs if the loss is below 5%. Hence, the degree of the embrittlement of the austenite base stainless steel welding metal may be evaluated by measuring the loss of the δ ferrite quantity form the initial δ ferrite quantity.
COPYRIGHT: (C)1979,JPO&Japio
JP52128992A 1977-10-27 1977-10-27 Method for determining embrittlement of austenitic stainless steel weld metal Expired JPS595860B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52128992A JPS595860B2 (en) 1977-10-27 1977-10-27 Method for determining embrittlement of austenitic stainless steel weld metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52128992A JPS595860B2 (en) 1977-10-27 1977-10-27 Method for determining embrittlement of austenitic stainless steel weld metal

Publications (2)

Publication Number Publication Date
JPS5461981A true JPS5461981A (en) 1979-05-18
JPS595860B2 JPS595860B2 (en) 1984-02-07

Family

ID=14998440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52128992A Expired JPS595860B2 (en) 1977-10-27 1977-10-27 Method for determining embrittlement of austenitic stainless steel weld metal

Country Status (1)

Country Link
JP (1) JPS595860B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62147356A (en) * 1985-12-20 1987-07-01 Sumitomo Metal Ind Ltd Sigma-phase detecting of stainless steel materials
DE3930939A1 (en) * 1988-09-16 1990-03-22 Hitachi Ltd METHOD AND DEVICE FOR PREDICTING THE GOOD REDUCTION OF A COMPONENT COMPOSING A PLANT PART
US5059903A (en) * 1987-09-21 1991-10-22 Hitachi, Ltd. Method and apparatus utilizing a magnetic field for detecting degradation of metal material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62147356A (en) * 1985-12-20 1987-07-01 Sumitomo Metal Ind Ltd Sigma-phase detecting of stainless steel materials
US5059903A (en) * 1987-09-21 1991-10-22 Hitachi, Ltd. Method and apparatus utilizing a magnetic field for detecting degradation of metal material
EP0646790B1 (en) * 1987-09-21 2000-05-03 Hitachi, Ltd. Method and apparatus for detecting embrittlement of metal material
DE3930939A1 (en) * 1988-09-16 1990-03-22 Hitachi Ltd METHOD AND DEVICE FOR PREDICTING THE GOOD REDUCTION OF A COMPONENT COMPOSING A PLANT PART
US4987367A (en) * 1988-09-16 1991-01-22 Hitachi, Ltd Method and apparatus for predicting deterioration of a member constituting a part of equipment

Also Published As

Publication number Publication date
JPS595860B2 (en) 1984-02-07

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