JPS57197446A - Fragile state detecting method caused by hydrogen of actual machine member - Google Patents

Fragile state detecting method caused by hydrogen of actual machine member

Info

Publication number
JPS57197446A
JPS57197446A JP8097081A JP8097081A JPS57197446A JP S57197446 A JPS57197446 A JP S57197446A JP 8097081 A JP8097081 A JP 8097081A JP 8097081 A JP8097081 A JP 8097081A JP S57197446 A JPS57197446 A JP S57197446A
Authority
JP
Japan
Prior art keywords
actual machine
machine member
hydrogen
tested
detecting method
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
JP8097081A
Other languages
Japanese (ja)
Inventor
Iwao Takase
Shinzo Ikeda
Isao Masaoka
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 Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP8097081A priority Critical patent/JPS57197446A/en
Publication of JPS57197446A publication Critical patent/JPS57197446A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

PURPOSE:To detect a progressing state of fragility of an actual machine member exactly and easily, by using the actual machine member in a hydrogen atmosphere, and after that, measuring a fragile state of an object to be tested, consisting of the same material. CONSTITUTION:In the inside of a pressure vessel 1 and a pipe 2, consisting of 2(1/4)Cr-1Mo steel, an object to be tested 3 of a rectangular parallelepiped consisting of the same material is provided by welding, and a hydrogen air current is made to pass through. Subsequently, at every prescribed time, the object to be tested 3 is cut by a cutter, its air bubble contenting rate is measured by an electronic microscope, and from this measured value and a master curve prepared in advance, a progressing state of fragility is detected.
JP8097081A 1981-05-29 1981-05-29 Fragile state detecting method caused by hydrogen of actual machine member Pending JPS57197446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8097081A JPS57197446A (en) 1981-05-29 1981-05-29 Fragile state detecting method caused by hydrogen of actual machine member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8097081A JPS57197446A (en) 1981-05-29 1981-05-29 Fragile state detecting method caused by hydrogen of actual machine member

Publications (1)

Publication Number Publication Date
JPS57197446A true JPS57197446A (en) 1982-12-03

Family

ID=13733366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8097081A Pending JPS57197446A (en) 1981-05-29 1981-05-29 Fragile state detecting method caused by hydrogen of actual machine member

Country Status (1)

Country Link
JP (1) JPS57197446A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62184330A (en) * 1986-02-07 1987-08-12 Mitsubishi Heavy Ind Ltd Confirming method for metal spraying of furnace wall tube
JPS6442439U (en) * 1987-09-08 1989-03-14

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62184330A (en) * 1986-02-07 1987-08-12 Mitsubishi Heavy Ind Ltd Confirming method for metal spraying of furnace wall tube
JPS6442439U (en) * 1987-09-08 1989-03-14

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