Английская Википедия:7079 aluminium alloy

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Шаблон:Short description 7079 aluminium alloy (UNS designation A97079) is a high strength, heat treatable wrought aluminium alloy used in the aircraft industry. Age-hardening heat treatment enhances the characteristics of AL 7079, eliminating variations in characteristics seen in Aluminium 7075.[1]

Chemical composition

Element Zn Mg Cu Fe Si Mn Cr Ti Remainder (each) Remainder (total) Al [2]
minimum 3.8 2.9 .4 0.00 0.00 .1 .1 0.00 0.00 0.00 Remainder
maximum 4.8 3.7 .8 .4 .3 .3 .25 .1 .5 .15 Remainder

Heat treatment for aluminium 7079

  1. Solution treatment
  2. Aging treatment
  3. Annealing treatment

[3]

Machinability

  1. Alloy 7079 T-6 provides qualities comparable to alloy 7075-T6
  2. -F condition provides acceptable results
  3. Improved machinability compared to fabricated and annealed tempers

[3]

Workability

  1. Can be formed similar to 7075
  2. Annealing provides superior formability and noticeable decline in workability following solution heat treatment
  3. Form in “as-quenched” condition for best results

[3]

Applications

  1. Mobile industry equipment
  2. Aircraft parts, including wing panels and bulkhead assemblies
  3. Hydraulic units
  4. Highly stressed parts

[4]

References

Шаблон:Reflist

Шаблон:Aluminium alloys Шаблон:Use dmy dates

Шаблон:Manufacturing-stub Шаблон:Aviation-stub