FR2293497A2 - Stress-corrosion resistant aluminium alloys - obtd. by overageing after homogenising have good mechanical properties - Google Patents

Stress-corrosion resistant aluminium alloys - obtd. by overageing after homogenising have good mechanical properties

Info

Publication number
FR2293497A2
FR2293497A2 FR7440732A FR7440732A FR2293497A2 FR 2293497 A2 FR2293497 A2 FR 2293497A2 FR 7440732 A FR7440732 A FR 7440732A FR 7440732 A FR7440732 A FR 7440732A FR 2293497 A2 FR2293497 A2 FR 2293497A2
Authority
FR
France
Prior art keywords
stress
alloy
overageing
homogenising
obtd
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
FR7440732A
Other languages
French (fr)
Other versions
FR2293497B2 (en
Inventor
Jean Marie Amedee Bouvaist
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.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney SA
Societe de Vente de lAluminium Pechiney SA
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 Aluminium Pechiney SA, Societe de Vente de lAluminium Pechiney SA filed Critical Aluminium Pechiney SA
Priority to FR7440732A priority Critical patent/FR2293497A2/en
Publication of FR2293497A2 publication Critical patent/FR2293497A2/en
Application granted granted Critical
Publication of FR2293497B2 publication Critical patent/FR2293497B2/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
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/057—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

The parent patent described the heat treatment of an Al alloy at a temp. Tt, above that at which melting of the metastable phases starts but below that at which melting begins according to equilibrium thermodynamic conditions necessitating certain precautions esp. keeping the H2 content below 0.2 pref. 0.1 ppm. In this patent of addn. a process for improving the stress-corrosion resistance of Al alloy A-U4SG (2014) contg. e.g. 4.2% Cu, 0.75% Si, 0.5% Mg, 0.6% Mn and bal. Al comprises either soln. treating according to claim 1 of the patent patent then overaging for 24-72 hr. pref. 48 hr. at 175 degrees C or modifying the compsn. of the alloy by increasing the Cu and/or Mg and/or Si content up to their solubility limit in Al at Temp. Tt defined in the parent patent then soln. treating and overageing as above. The alloy shows good stress-corrosion resistance without a loss in mechanical props. and is partic. useful in aeronautical constructions.
FR7440732A 1974-12-04 1974-12-04 Stress-corrosion resistant aluminium alloys - obtd. by overageing after homogenising have good mechanical properties Granted FR2293497A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7440732A FR2293497A2 (en) 1974-12-04 1974-12-04 Stress-corrosion resistant aluminium alloys - obtd. by overageing after homogenising have good mechanical properties

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7440732A FR2293497A2 (en) 1974-12-04 1974-12-04 Stress-corrosion resistant aluminium alloys - obtd. by overageing after homogenising have good mechanical properties

Publications (2)

Publication Number Publication Date
FR2293497A2 true FR2293497A2 (en) 1976-07-02
FR2293497B2 FR2293497B2 (en) 1977-07-08

Family

ID=9146000

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7440732A Granted FR2293497A2 (en) 1974-12-04 1974-12-04 Stress-corrosion resistant aluminium alloys - obtd. by overageing after homogenising have good mechanical properties

Country Status (1)

Country Link
FR (1) FR2293497A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0645467A1 (en) * 1993-09-28 1995-03-29 Pechiney Rhenalu Process for desensitization to intercristalline corrosion of alumium alloys of the series 2000 and 6000, and articles made according to this process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0645467A1 (en) * 1993-09-28 1995-03-29 Pechiney Rhenalu Process for desensitization to intercristalline corrosion of alumium alloys of the series 2000 and 6000, and articles made according to this process
FR2710657A1 (en) * 1993-09-28 1995-04-07 Pechiney Rhenalu Process for desensitizing intercrystalline corrosion of Al series 2000 and 6000 alloys and corresponding products.
US5643372A (en) * 1993-09-28 1997-07-01 Pechiney Rhenalu Process for the desensitisation to intercrystalline corrosion of 2000 and 6000 series Al alloys and corresponding products
AU680014B2 (en) * 1993-09-28 1997-07-17 Pechiney Rhenalu Process for the desensitisation to intercrystalline corrosion of 2000 and 6000 series A1 alloys and corresponding products

Also Published As

Publication number Publication date
FR2293497B2 (en) 1977-07-08

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