GB827132A - Improvements in methods of forming superficial diffusion alloys containing chromium - Google Patents

Improvements in methods of forming superficial diffusion alloys containing chromium

Info

Publication number
GB827132A
GB827132A GB11432/58A GB1143258A GB827132A GB 827132 A GB827132 A GB 827132A GB 11432/58 A GB11432/58 A GB 11432/58A GB 1143258 A GB1143258 A GB 1143258A GB 827132 A GB827132 A GB 827132A
Authority
GB
United Kingdom
Prior art keywords
additional metal
vapours
contact
metal
mass
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
GB11432/58A
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.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
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 Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Publication of GB827132A publication Critical patent/GB827132A/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
    • C23C10/06—Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases

Landscapes

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

Abstract

In a method of forming, on a solid metal body consisting of iron, nickel or cobalt or an alloy of one or more of these metals, a superficial alloy consisting of the metal of the body with an p additional metal consisting of chromium with or without aluminium, zirconium or silicon, wherein a source of vapours of the fluoride of the additional metal is heated in the same chamber as the body so that said vapours are brought, as they are formed, into contact with the body, the source is constituted by two separate parts, namely by a mass of additional metal close to, but out of contact with, the body, and by hydrofluoric acid and/or ammonium fluoride, not admixed with chromium, also out of contact with the body, the vapours produced from the hydrofluoric acid and/or ammonium fluoride when the latter is or are heated attacking the mass of additional metal to form the additional metal fluoride vapours to be brought into contact with the body. A metallic network closely conforming to the shape of the body may be used to separate the mass of additional metal from the body.
GB11432/58A 1955-02-16 1956-02-14 Improvements in methods of forming superficial diffusion alloys containing chromium Expired GB827132A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR827132X 1955-02-16

Publications (1)

Publication Number Publication Date
GB827132A true GB827132A (en) 1960-02-03

Family

ID=9283199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11432/58A Expired GB827132A (en) 1955-02-16 1956-02-14 Improvements in methods of forming superficial diffusion alloys containing chromium

Country Status (1)

Country Link
GB (1) GB827132A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2609016A1 (en) * 1975-03-07 1977-02-17 Onera (Off Nat Aerospatiale) METHOD AND DEVICE FOR THE FORMATION OF SURFACE DIFFUSION ALLOYS, AND WORKPIECES TREATED WITH THESE
FR2508063A1 (en) * 1981-06-18 1982-12-24 Snecma STEAM PROCESS FOR THE DEPOSITION OF A PROTECTIVE COATING ON A METAL PART, DEVICE FOR IMPLEMENTING SAME AND PARTS OBTAINED ACCORDING TO SAID METHOD
EP0349420A1 (en) * 1988-06-30 1990-01-03 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Process and apparatus for the simultaneous protection of both internal and external surfaces, especially by aluminising parts made of heat-resistant alloys based on Ni, Co or Fe
US5149376A (en) * 1988-06-30 1992-09-22 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S.N.E.C.M.A." Process and apparatus for the simultaneous deposition of a protective coating on internal and external surfaces of heat-resistant alloy parts

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2609016A1 (en) * 1975-03-07 1977-02-17 Onera (Off Nat Aerospatiale) METHOD AND DEVICE FOR THE FORMATION OF SURFACE DIFFUSION ALLOYS, AND WORKPIECES TREATED WITH THESE
US4096296A (en) * 1975-03-07 1978-06-20 Office National D'etudes Et De Recherches Aerospatiales Process for forming surface diffusion alloy layers on refractory metallic articles
FR2508063A1 (en) * 1981-06-18 1982-12-24 Snecma STEAM PROCESS FOR THE DEPOSITION OF A PROTECTIVE COATING ON A METAL PART, DEVICE FOR IMPLEMENTING SAME AND PARTS OBTAINED ACCORDING TO SAID METHOD
EP0068950A1 (en) * 1981-06-18 1983-01-05 Societe Nationale D'etude Et De Construction De Moteurs D'aviation, "S.N.E.C.M.A." Vapour phase process for depositing a protective coating on a metallic article, apparatus therefor and articles obtained by this process
EP0349420A1 (en) * 1988-06-30 1990-01-03 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Process and apparatus for the simultaneous protection of both internal and external surfaces, especially by aluminising parts made of heat-resistant alloys based on Ni, Co or Fe
FR2633641A1 (en) * 1988-06-30 1990-01-05 Snecma PROCESS AND DEVICE FOR THE SIMULTANEOUS PROTECTION OF INTERNAL AND EXTERNAL SURFACES, PARTICULARLY BY ALUMINIZATION OF HOT-RESISTANT ALLOY PARTS, BASED ON NI, CO OR FE
US5068127A (en) * 1988-06-30 1991-11-26 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S.N.E.C.M.A." Process and apparatus for the simultaneous deposition of a protective coating on internal and external surfaces of heat-resistant alloy parts
US5149376A (en) * 1988-06-30 1992-09-22 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S.N.E.C.M.A." Process and apparatus for the simultaneous deposition of a protective coating on internal and external surfaces of heat-resistant alloy parts

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