JPS5481131A - Process for reducting hydrogen permeating quantity in metal surface - Google Patents

Process for reducting hydrogen permeating quantity in metal surface

Info

Publication number
JPS5481131A
JPS5481131A JP14900377A JP14900377A JPS5481131A JP S5481131 A JPS5481131 A JP S5481131A JP 14900377 A JP14900377 A JP 14900377A JP 14900377 A JP14900377 A JP 14900377A JP S5481131 A JPS5481131 A JP S5481131A
Authority
JP
Japan
Prior art keywords
hydrogen
treatment
gas loop
calorizing
permeating
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
JP14900377A
Other languages
Japanese (ja)
Other versions
JPS6018748B2 (en
Inventor
Yoshimo Sanokawa
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.)
Japan Atomic Energy Agency
Original Assignee
Japan Atomic Energy Research Institute
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 Japan Atomic Energy Research Institute filed Critical Japan Atomic Energy Research Institute
Priority to JP52149003A priority Critical patent/JPS6018748B2/en
Priority to DE19782836745 priority patent/DE2836745A1/en
Publication of JPS5481131A publication Critical patent/JPS5481131A/en
Publication of JPS6018748B2 publication Critical patent/JPS6018748B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

PURPOSE: To provide the subject process comprising applying a calorizing coating treatment on a metal surface to form a diffusion layer, thereby to reduce greatly the hydrogen permeating quantity.
CONSTITUTION: A calorizing treatment is applied to a heat transmission pipe of a heat exchanger having a heat transmission area of 1 m2, placed at the intermediate part of, for example, a helium gas loop (temperature : 1000°C, pressure : 40 atm., flow quantity : 100 g/sec.) and a hydrogen gas loop (900°C, 40 atm., 30 g/sec.), thereby to form a diffusion layer of a thickness of about 100 to 200 microns. Then, the quantity of hydrogen gas permeating from the hydrogent gas loop side through a the wall of the heat transmission pipe to the helium gas loop side is measured. Then, the reducitin ratio of the hydrogen permeating quantity is not only reduced greatly, for example, about 1/50 with respect to a pure metal mother body which has been subjected no treatment by the driving of about 900 hours but no deterioration of the coating layer is recognized. Further, when a calorizing treatment is applied to the metal mother body and further plasma spraying of W, Mo or ceramics is applied thereto, the effect of reducing the hydrogen permeating quantity is further maintained for a long period of time.
COPYRIGHT: (C)1979,JPO&Japio
JP52149003A 1977-12-12 1977-12-12 Method for reducing hydrogen permeation through steel materials Expired JPS6018748B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP52149003A JPS6018748B2 (en) 1977-12-12 1977-12-12 Method for reducing hydrogen permeation through steel materials
DE19782836745 DE2836745A1 (en) 1977-12-12 1978-08-22 Reducing the permeability of metal surfaces to hydrogen - esp. metals employed in nuclear reactors contg. hydrogen or its isotopes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52149003A JPS6018748B2 (en) 1977-12-12 1977-12-12 Method for reducing hydrogen permeation through steel materials

Publications (2)

Publication Number Publication Date
JPS5481131A true JPS5481131A (en) 1979-06-28
JPS6018748B2 JPS6018748B2 (en) 1985-05-11

Family

ID=15465525

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52149003A Expired JPS6018748B2 (en) 1977-12-12 1977-12-12 Method for reducing hydrogen permeation through steel materials

Country Status (2)

Country Link
JP (1) JPS6018748B2 (en)
DE (1) DE2836745A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006028566A (en) * 2004-07-14 2006-02-02 Mitsubishi Kakoki Kaisha Ltd Member for hydrocarbon reforming device
CN111739672A (en) * 2020-05-13 2020-10-02 中国核电工程有限公司 Structure for reducing tritium permeation rate

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3029488A1 (en) * 1980-08-02 1982-03-04 GHT Gesellschaft für Hochtemperaturreaktor-Technik mbH, 5060 Bergisch Gladbach METHOD FOR PRODUCING A PROTECTIVE LAYER ON METAL WORKPIECES
DE3438339C1 (en) * 1984-10-19 1986-01-30 Nukem Gmbh, 6450 Hanau Process for the production of construction parts for media containing gaseous hydrogen isotopes
JPH02118711U (en) * 1989-03-13 1990-09-25

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006028566A (en) * 2004-07-14 2006-02-02 Mitsubishi Kakoki Kaisha Ltd Member for hydrocarbon reforming device
JP4539907B2 (en) * 2004-07-14 2010-09-08 三菱化工機株式会社 Components for hydrocarbon reformers
CN111739672A (en) * 2020-05-13 2020-10-02 中国核电工程有限公司 Structure for reducing tritium permeation rate
CN111739672B (en) * 2020-05-13 2023-12-22 中国核电工程有限公司 Structure for reducing tritium permeation rate

Also Published As

Publication number Publication date
DE2836745A1 (en) 1979-06-13
JPS6018748B2 (en) 1985-05-11

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