FR2326476A1 - Aluminium alloys contg. chromium and iron - made by evapn. and condensn., with high creep - and fatigue-strength suitable for aviation - Google Patents

Aluminium alloys contg. chromium and iron - made by evapn. and condensn., with high creep - and fatigue-strength suitable for aviation

Info

Publication number
FR2326476A1
FR2326476A1 FR7530064A FR7530064A FR2326476A1 FR 2326476 A1 FR2326476 A1 FR 2326476A1 FR 7530064 A FR7530064 A FR 7530064A FR 7530064 A FR7530064 A FR 7530064A FR 2326476 A1 FR2326476 A1 FR 2326476A1
Authority
FR
France
Prior art keywords
esp
iron
condensn
evapn
aviation
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
FR7530064A
Other languages
French (fr)
Other versions
FR2326476B1 (en
Inventor
Robert Lewis Bickerdike
Douglas Clark
John Norman Eastabrook
Garyth Hughes
William Norman Mair
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.)
UK Government
Original Assignee
UK Government
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 UK Government filed Critical UK Government
Priority to FR7530064A priority Critical patent/FR2326476A1/en
Publication of FR2326476A1 publication Critical patent/FR2326476A1/en
Application granted granted Critical
Publication of FR2326476B1 publication Critical patent/FR2326476B1/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
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

Aluminium alloy made by evapn. and condensn. contains by wt. 2-12% Cr, 0.2-3.0% Fe, balance Al and trace elements, the major part of the Cr being in metastable soln. in the Al lattice which contains a pptd. iron-rich phase with max. size 200 angstrom, the amt. of coarse intermetallic particles, esp. at the grain boundaries, being reduced to the minimum. The alloy pref. contains 4-10, esp. 5-9% Cr and 0.3-2.0, esp. 0.6-1.5% Fe; and esp. pref. compsn. is 5-8% Cr, 0.8-1.3% Fe where the iron-rich phase has max. size 50 angstrom. The metastable soln. of Cr pref. consists of narrow, elongated grains or platelets with max. dia. or thickness 5 mu m, esp. 1 mu m. The alloy is used e.g. in aviation, the alloy possessing high creep- and fatigue-resistance.
FR7530064A 1975-10-01 1975-10-01 Aluminium alloys contg. chromium and iron - made by evapn. and condensn., with high creep - and fatigue-strength suitable for aviation Granted FR2326476A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7530064A FR2326476A1 (en) 1975-10-01 1975-10-01 Aluminium alloys contg. chromium and iron - made by evapn. and condensn., with high creep - and fatigue-strength suitable for aviation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7530064A FR2326476A1 (en) 1975-10-01 1975-10-01 Aluminium alloys contg. chromium and iron - made by evapn. and condensn., with high creep - and fatigue-strength suitable for aviation

Publications (2)

Publication Number Publication Date
FR2326476A1 true FR2326476A1 (en) 1977-04-29
FR2326476B1 FR2326476B1 (en) 1979-06-29

Family

ID=9160695

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7530064A Granted FR2326476A1 (en) 1975-10-01 1975-10-01 Aluminium alloys contg. chromium and iron - made by evapn. and condensn., with high creep - and fatigue-strength suitable for aviation

Country Status (1)

Country Link
FR (1) FR2326476A1 (en)

Also Published As

Publication number Publication date
FR2326476B1 (en) 1979-06-29

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