FR2228853A1 - Protective coating for superalloy articles - using alloy powder comprising metals of three different electropositivities - Google Patents

Protective coating for superalloy articles - using alloy powder comprising metals of three different electropositivities

Info

Publication number
FR2228853A1
FR2228853A1 FR7317061A FR7317061A FR2228853A1 FR 2228853 A1 FR2228853 A1 FR 2228853A1 FR 7317061 A FR7317061 A FR 7317061A FR 7317061 A FR7317061 A FR 7317061A FR 2228853 A1 FR2228853 A1 FR 2228853A1
Authority
FR
France
Prior art keywords
metals
electropositivities
alloy
alloy powder
different
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
FR7317061A
Other languages
French (fr)
Other versions
FR2228853B1 (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.)
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
Priority to FR7317061A priority Critical patent/FR2228853A1/en
Publication of FR2228853A1 publication Critical patent/FR2228853A1/en
Application granted granted Critical
Publication of FR2228853B1 publication Critical patent/FR2228853B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/09—Mixtures of metallic powders

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

An alloy powder has constituent metals which fall into three groups (1), (2) and (3), with electropositivities: (1) >2; (2) 0.5 and (3) electropositivity between the least electropositive metal of group (1) and the most electropositive of group (2). A composite coating protecting-super alloy articles against corrosion, is made by forming a first alloy layer comprising beside the article alloy metals, at least one metal of the group of Y and the lanthanides, then a 2nd alloy layer comprising A 1 and advantageously Cr in proportions greater than that of the article alloy.
FR7317061A 1973-05-11 1973-05-11 Protective coating for superalloy articles - using alloy powder comprising metals of three different electropositivities Granted FR2228853A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7317061A FR2228853A1 (en) 1973-05-11 1973-05-11 Protective coating for superalloy articles - using alloy powder comprising metals of three different electropositivities

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7317061A FR2228853A1 (en) 1973-05-11 1973-05-11 Protective coating for superalloy articles - using alloy powder comprising metals of three different electropositivities

Publications (2)

Publication Number Publication Date
FR2228853A1 true FR2228853A1 (en) 1974-12-06
FR2228853B1 FR2228853B1 (en) 1975-08-22

Family

ID=9119162

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7317061A Granted FR2228853A1 (en) 1973-05-11 1973-05-11 Protective coating for superalloy articles - using alloy powder comprising metals of three different electropositivities

Country Status (1)

Country Link
FR (1) FR2228853A1 (en)

Also Published As

Publication number Publication date
FR2228853B1 (en) 1975-08-22

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Legal Events

Date Code Title Description
ST Notification of lapse