FR2433056A1 - Procede de traitement d'alliages au chrome, de structure metallographique austenitique - Google Patents

Procede de traitement d'alliages au chrome, de structure metallographique austenitique

Info

Publication number
FR2433056A1
FR2433056A1 FR7917287A FR7917287A FR2433056A1 FR 2433056 A1 FR2433056 A1 FR 2433056A1 FR 7917287 A FR7917287 A FR 7917287A FR 7917287 A FR7917287 A FR 7917287A FR 2433056 A1 FR2433056 A1 FR 2433056A1
Authority
FR
France
Prior art keywords
steel
treatment
protective atmosphere
colouring
nascent oxygen
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
FR7917287A
Other languages
English (en)
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.)
SYGEODA
Original Assignee
SYGEODA
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
Priority claimed from LU80091A external-priority patent/LU80091A1/fr
Priority claimed from LU80092A external-priority patent/LU80092A1/fr
Application filed by SYGEODA filed Critical SYGEODA
Publication of FR2433056A1 publication Critical patent/FR2433056A1/fr
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
    • 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
    • C23C8/12—Oxidising using elemental oxygen or ozone
    • C23C8/14—Oxidising of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

Procédé de traitement d'alliages au chrome contenant de 13 à 25 % de chrome et de 0 à 2 % de titane, de structure austénitique. Les pieces à traiter sont mises en contact sous atmosphère protectrice, avec de l'oxygène naissant. Si la température de traitement est comprise entre 500 degrés C et 900 degrés C on obtient une coloration tandis qu'à une température supérieure à l'Ac3 on obtient des propriétés autolubrifiantes. Application aux alliages pour leur conférer une coloration comprise entre jaune paille et bleu nuit et/ou des propriétés autolubrifiantes.
FR7917287A 1978-08-08 1979-06-28 Procede de traitement d'alliages au chrome, de structure metallographique austenitique Pending FR2433056A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU80091A LU80091A1 (fr) 1978-08-08 1978-08-08 Procede de realisation d'une couche autolubrifiante pour des alliages au chrome,de structure metallographique austenitique
LU80092A LU80092A1 (fr) 1978-08-08 1978-08-08 Procede de coloration d'alliages a base de chrome

Publications (1)

Publication Number Publication Date
FR2433056A1 true FR2433056A1 (fr) 1980-03-07

Family

ID=26640251

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7917287A Pending FR2433056A1 (fr) 1978-08-08 1979-06-28 Procede de traitement d'alliages au chrome, de structure metallographique austenitique

Country Status (1)

Country Link
FR (1) FR2433056A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3108160A1 (de) * 1981-02-06 1982-08-26 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München "verfahren zur herstellung schuetzender oxidschichten"

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3108160A1 (de) * 1981-02-06 1982-08-26 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München "verfahren zur herstellung schuetzender oxidschichten"

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