FR2237971A1 - Non-magnetic aluminium-lithium-magnesium alloy - which is hardened, and heat treated to contain Guinier-Preston zones - Google Patents

Non-magnetic aluminium-lithium-magnesium alloy - which is hardened, and heat treated to contain Guinier-Preston zones

Info

Publication number
FR2237971A1
FR2237971A1 FR7424793A FR7424793A FR2237971A1 FR 2237971 A1 FR2237971 A1 FR 2237971A1 FR 7424793 A FR7424793 A FR 7424793A FR 7424793 A FR7424793 A FR 7424793A FR 2237971 A1 FR2237971 A1 FR 2237971A1
Authority
FR
France
Prior art keywords
alloy
guinier
hardened
contain
lithium
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
FR7424793A
Other languages
French (fr)
Other versions
FR2237971B3 (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.)
Szekesfehervari Konnyufemmu
Original Assignee
Szekesfehervari Konnyufemmu
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 Szekesfehervari Konnyufemmu filed Critical Szekesfehervari Konnyufemmu
Publication of FR2237971A1 publication Critical patent/FR2237971A1/en
Application granted granted Critical
Publication of FR2237971B3 publication Critical patent/FR2237971B3/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
    • C22C21/10—Alloys based on aluminium with zinc as the next major constituent
    • 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
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Continuous Casting (AREA)
  • Hard Magnetic Materials (AREA)
  • Electromechanical Clocks (AREA)

Abstract

The alloy comprises 2-4.5% Mg, 1-1.2% Li or 7-8% Zn in stoichiometric proportions, balance Al. The alloy may contain a small amt. of Mn and Cr, or total max. 0.1%. After casting, homogenising, and working, the alloy is hardened by a water quench from 480 degrees C and subjected to a final heat treatment so that Guinier-Preston zones are formed, pref. heated for 12h to 120 degrees C with holding times of 30-60 min, depending on the dimensions of the workpiece. The magnetic susceptibility of the alloy is only about one half of 3/10th of that of known Al alloys. The prodn. costs of the alloy, which has only a slightly higher magnetic susceptibility than that of a Be bronze, are 5-10 fold lower than those for Be bronzes. It has a better corrosion resistance than known Al alloys.
FR7424793A 1973-07-20 1974-07-17 Non-magnetic aluminium-lithium-magnesium alloy - which is hardened, and heat treated to contain Guinier-Preston zones Granted FR2237971A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUSE001682 HU167172B (en) 1973-07-20 1973-07-20

Publications (2)

Publication Number Publication Date
FR2237971A1 true FR2237971A1 (en) 1975-02-14
FR2237971B3 FR2237971B3 (en) 1977-05-20

Family

ID=11001395

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7424793A Granted FR2237971A1 (en) 1973-07-20 1974-07-17 Non-magnetic aluminium-lithium-magnesium alloy - which is hardened, and heat treated to contain Guinier-Preston zones

Country Status (3)

Country Link
DE (1) DE2431763C2 (en)
FR (1) FR2237971A1 (en)
HU (1) HU167172B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385806A1 (en) * 1977-03-28 1978-10-27 Alusuisse IMPROVED WELDABILITY ALUMINUM ALLOY
WO2008005852A2 (en) * 2006-06-30 2008-01-10 Alcan Rolled Products-Ravenswood, Llc, High strength, heat treatable al-zn-mg aluminium alloy

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103173700B (en) * 2013-03-15 2016-01-06 中国航空工业集团公司北京航空材料研究院 The preparation method of surface deintercalation layer of Al-Cu-Li-X aluminium-lithium alloy

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1126625B (en) * 1955-04-05 1962-03-29 Stone & Company Charlton Ltd J Lithium-containing aluminum alloy and process for its manufacture
US3947297A (en) * 1973-04-18 1976-03-30 The United States Of America As Represented By The Secretary Of The Air Force Treatment of aluminum alloys

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385806A1 (en) * 1977-03-28 1978-10-27 Alusuisse IMPROVED WELDABILITY ALUMINUM ALLOY
WO2008005852A2 (en) * 2006-06-30 2008-01-10 Alcan Rolled Products-Ravenswood, Llc, High strength, heat treatable al-zn-mg aluminium alloy
WO2008005852A3 (en) * 2006-06-30 2008-04-17 Alcan Rolled Products Ravenswood Llc High strength, heat treatable al-zn-mg aluminium alloy
US8357249B2 (en) 2006-06-30 2013-01-22 Constellium Rolled Products Ravenswood, Llc High strength, heat treatable aluminum alloy

Also Published As

Publication number Publication date
DE2431763C2 (en) 1986-09-18
FR2237971B3 (en) 1977-05-20
DE2431763A1 (en) 1975-02-06
HU167172B (en) 1975-08-28

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