JPS54116346A - Pretreating method for al-containing austenitic heat resistant steel to stably form uniform al2o3 film - Google Patents

Pretreating method for al-containing austenitic heat resistant steel to stably form uniform al2o3 film

Info

Publication number
JPS54116346A
JPS54116346A JP2279778A JP2279778A JPS54116346A JP S54116346 A JPS54116346 A JP S54116346A JP 2279778 A JP2279778 A JP 2279778A JP 2279778 A JP2279778 A JP 2279778A JP S54116346 A JPS54116346 A JP S54116346A
Authority
JP
Japan
Prior art keywords
steel
heat resistant
austenitic heat
resistant steel
oxide layer
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
JP2279778A
Other languages
Japanese (ja)
Other versions
JPS5651230B2 (en
Inventor
Satoshi Kado
Taketomo Yamazaki
Toru Sakamoto
Mikio Yamanaka
Kotaro Yoshida
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 JP2279778A priority Critical patent/JPS54116346A/en
Publication of JPS54116346A publication Critical patent/JPS54116346A/en
Publication of JPS5651230B2 publication Critical patent/JPS5651230B2/ja
Granted 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/10—Oxidising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)

Abstract

PURPOSE:To uniformly form an Al2O3 film with superior resistance to oxidation and hot corrosion on an Al-contg. austenitic heat resistant steel by throughly removing an inner oxide layer of the steel by surface grinding, etc. CONSTITUTION:An austenitic heat resistant steel contg. Al; 4.5-10%, C<0.4%, Si<2.0%, Mn<10%, Ni; 12-50% and Cr; 5-30% is worked to a plate by blooming, hot rolling, etc. At this time, since diffusion of Al from the interior of the steel is insufficient against penetration of oxygen from the surface, repair of an Al2O3 film due to selective oxidation of Al is not carried out on the steel surface and Al is oxidized in the matrix of the steel surface layer part, forming an inner oxide layer. This oxide layer is thoroughly removed by surface grinding with a belt sander. Next the plate is cold rolled to a desired thickness and used as a heat resistant plate for an annealing furnace, etc. Uniform Al2O3 is formed in a hot oxidizing atmosphere to prevent oxidation and corrosion thereafter.
JP2279778A 1978-03-02 1978-03-02 Pretreating method for al-containing austenitic heat resistant steel to stably form uniform al2o3 film Granted JPS54116346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2279778A JPS54116346A (en) 1978-03-02 1978-03-02 Pretreating method for al-containing austenitic heat resistant steel to stably form uniform al2o3 film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2279778A JPS54116346A (en) 1978-03-02 1978-03-02 Pretreating method for al-containing austenitic heat resistant steel to stably form uniform al2o3 film

Publications (2)

Publication Number Publication Date
JPS54116346A true JPS54116346A (en) 1979-09-10
JPS5651230B2 JPS5651230B2 (en) 1981-12-03

Family

ID=12092663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2279778A Granted JPS54116346A (en) 1978-03-02 1978-03-02 Pretreating method for al-containing austenitic heat resistant steel to stably form uniform al2o3 film

Country Status (1)

Country Link
JP (1) JPS54116346A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6612898B1 (en) 1996-06-20 2003-09-02 Tadahiro Ohmi Method for forming oxidation-passive layer, fluid-contacting part, and fluid feed/discharge system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63308822A (en) * 1987-06-10 1988-12-16 Matsushita Electric Ind Co Ltd Illumination switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6612898B1 (en) 1996-06-20 2003-09-02 Tadahiro Ohmi Method for forming oxidation-passive layer, fluid-contacting part, and fluid feed/discharge system

Also Published As

Publication number Publication date
JPS5651230B2 (en) 1981-12-03

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