FR729466A - Procédé de durcissement par l'azote des alliages austénitiques - Google Patents

Procédé de durcissement par l'azote des alliages austénitiques

Info

Publication number
FR729466A
FR729466A FR729466DA FR729466A FR 729466 A FR729466 A FR 729466A FR 729466D A FR729466D A FR 729466DA FR 729466 A FR729466 A FR 729466A
Authority
FR
France
Prior art keywords
hardening process
austenitic alloys
nitrogen hardening
nitrogen
austenitic
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.)
Expired
Application number
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.)
COMMENTRY
Original Assignee
COMMENTRY
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 COMMENTRY filed Critical COMMENTRY
Application granted granted Critical
Publication of FR729466A publication Critical patent/FR729466A/fr
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
    • 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
    • C23C8/24—Nitriding
    • C23C8/26—Nitriding 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)
FR729466D 1931-03-14 1931-03-14 Procédé de durcissement par l'azote des alliages austénitiques Expired FR729466A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR729466T 1931-03-14

Publications (1)

Publication Number Publication Date
FR729466A true FR729466A (fr) 1932-07-25

Family

ID=9112458

Family Applications (1)

Application Number Title Priority Date Filing Date
FR729466D Expired FR729466A (fr) 1931-03-14 1931-03-14 Procédé de durcissement par l'azote des alliages austénitiques

Country Status (1)

Country Link
FR (1) FR729466A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1928695A1 (de) * 1968-06-07 1970-01-15 Allegheny Ludlum Steel Verbesserter rostfreier Stahl durch innere Nitridbildung und Verfahren zu dessen Herstellung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1928695A1 (de) * 1968-06-07 1970-01-15 Allegheny Ludlum Steel Verbesserter rostfreier Stahl durch innere Nitridbildung und Verfahren zu dessen Herstellung

Similar Documents

Publication Publication Date Title
FR729466A (fr) Procédé de durcissement par l'azote des alliages austénitiques
FR47594E (fr) Procédé de cémentation de l'acier
FR713219A (fr) Procédé de décapage d'aciers inoxydables
FR747440A (fr) Alliage d'acier
FR723937A (fr) Nouveau procédé d'emboutissage des pièces creuses
FR681986A (fr) Procédé d'amélioration des scories thomas utilisées comme engrais
FR724553A (fr) Procédé de purification des metaux
FR737946A (fr) Procédé d'étamage de la fonte
FR740075A (fr) Procédé d'amélioration d'outils d'acier par voie chimico-électrolytique
FR716770A (fr) Procédé de renforcement d'ouvrages métalliques
FR724368A (fr) Procédé de déphosphoration des aciers
FR755895A (fr) Procédé d'enrichissement des minerais par flottation
FR775498A (fr) Procédé de durcissement de l'acier
FR729454A (fr) Procédé d'amélioration des engrais
FR724369A (fr) Procédé pour l'amélioration des aciers
FR747074A (fr) Perfectionnements au procédé d'amélioration des aciers
FR713916A (fr) Procédé d'affinage des métaux
FR737929A (fr) Procédé de broyage par corps métalliques
FR736920A (fr) Procédé pour l'amélioration des articles de pelleterie et articles perfectionnés suivant ce procédé
FR713221A (fr) Procédé d'amélioration des aciers inoxydables
FR724145A (fr) Procédé de raidissage des pièces métalliques
FR42704E (fr) Procédé de préparation d'alliages
FR740451A (fr) Procédé de fabrication de pièces métalliques par coulée en coquille et pièces réalisées suivant ce procédé
FR691632A (fr) Procédé pour la dépuration du cuivre de cémentation applicable également à d'autres qualités de cuivre subdivisé
FR652266A (fr) Procédé de décarburation d'alliages de fer