JPS5573863A - Surface treating method for preventing hydrogen embrittlement cracking of steel material - Google Patents

Surface treating method for preventing hydrogen embrittlement cracking of steel material

Info

Publication number
JPS5573863A
JPS5573863A JP14664378A JP14664378A JPS5573863A JP S5573863 A JPS5573863 A JP S5573863A JP 14664378 A JP14664378 A JP 14664378A JP 14664378 A JP14664378 A JP 14664378A JP S5573863 A JPS5573863 A JP S5573863A
Authority
JP
Japan
Prior art keywords
steel material
hydrogen embrittlement
copper
embrittlement cracking
contg
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
JP14664378A
Other languages
Japanese (ja)
Inventor
Tomoyoshi Murata
Eiji Sato
Akira Matsuhashi
Misao 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
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP14664378A priority Critical patent/JPS5573863A/en
Publication of JPS5573863A publication Critical patent/JPS5573863A/en
Pending 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/38—Coating with copper

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemically Coating (AREA)

Abstract

PURPOSE:To decrease the quantity of infiltrating hydrogen so as to improve the resistance to hydrogen embrittlement cracking, by applying surface-treating soln. contg. copper ions on the surface of steel material before it is used in practical environment to form deposited stable coating contg. copper. CONSTITUTION:A surface-treating soln., which contains not less than 0.03mol/l copper ions such as CuSO4 and has a pH 1-6 is brought into contact with the surface of a steel material such as line pipe in order to deposit metal copper on the surface of the steel material. Or in other case, the steel material is brought into contact with a surface-treating soln. made by addn. of a protective film forming cpd. such as Fe2(SO4)3 to an aq. soln. contg. not less than 0.005mol/l copper ions, and regulated at a pH 1-6 in order to deposit metal copper on the surface of the steel material, and to form simultaneously a stable coating. Hereby, the infiltration of hydrogen into the steel material such as line pipe, which is used in the environment of crude oil, natural gas etc., is effectively prevented, consequently hydrogen embrittlement cracking is prevented.
JP14664378A 1978-11-29 1978-11-29 Surface treating method for preventing hydrogen embrittlement cracking of steel material Pending JPS5573863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14664378A JPS5573863A (en) 1978-11-29 1978-11-29 Surface treating method for preventing hydrogen embrittlement cracking of steel material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14664378A JPS5573863A (en) 1978-11-29 1978-11-29 Surface treating method for preventing hydrogen embrittlement cracking of steel material

Publications (1)

Publication Number Publication Date
JPS5573863A true JPS5573863A (en) 1980-06-03

Family

ID=15412357

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14664378A Pending JPS5573863A (en) 1978-11-29 1978-11-29 Surface treating method for preventing hydrogen embrittlement cracking of steel material

Country Status (1)

Country Link
JP (1) JPS5573863A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011001611A (en) * 2009-06-19 2011-01-06 Jfe Steel Corp Steel sheet excellent in delayed fracture resistance, and method for producing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011001611A (en) * 2009-06-19 2011-01-06 Jfe Steel Corp Steel sheet excellent in delayed fracture resistance, and method for producing the same

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