Reference standard: AISI
The alloying element in 2014 is copper, known as hard molybdenum, which has high strength and good cutting processability
Can, ولكن مقاومة التآكل ضعيفة.

●Chemical composition of aluminum alloy 2014:

الألومنيوم آل: balance
السيليكون نعم: 0.6～1.2
النحاس النحاس: 3.9～4.8
المغنيسيوم ملغ: 0.40～0.8
الزنك الزنك: ≤0.30
المنغنيز من: 0.40～1.0
التيتانيوم تي: ≤0.15
Nickel Ni: ≤0.10
الحديد الحديد: 0.000～0.700
ملحوظة: single: .050.05; total: ≤0.15

●Mechanical properties of aluminum alloy 2014:

قوة الشد σ ب (MPa): ≥440
Elongation δ5 (%): ≥10
ملحوظة: Longitudinal mechanical properties of bar at room temperature
Sample size: bar diameter (square bar, hexagonal bar inscribed circle diameter) ≥ 22

●Aluminum alloy 2014 characteristics and scope of application:

ال 2014 aluminum alloy is both a hard aluminum alloy and a wrought aluminum alloy in terms of composition. Compared with 2A50, it contains
The copper content is higher, so the strength is higher, and the thermal strength is better, but the plasticity in the hot state is not as good as 2A50, 2014
Aluminum alloy has good machinability, good contact welding, spot welding and roll welding performance, arc welding and gas welding
Poor energy; يمكن تعزيز المعالجة الحرارية, there is extrusion effect; corrosion resistance is not high, there is inter-test corrosion during artificial aging
tendency. Used in occasions requiring high strength and hardness (بما في ذلك ارتفاع درجة الحرارة). Heavy Forgings, Plates and Extrusions
Materials are used in aircraft structural parts, multi-stage rocket first-stage fuel tanks and spacecraft parts, عجلات, إطارات الشاحنات
وأجزاء نظام التعليق. The corrosion resistance is poor, but it can be effectively protected by covering it with pure aluminum; it is easy to produce corrosion during welding
Cracks, but can be welded or riveted using special techniques. Widely used in aircraft structures (skin,
skeleton, rib beam, bulkhead, إلخ.) المسامير, مكونات الصاروخ, عجلات الشاحنة, propeller components and other structures
member.

●2014 aluminum heat treatment specification:

1) Homogenization annealing: heating at 475-490°C; holding for 12-14 hours; furnace cooling.
2) التلدين الكامل: heating at 350-400°C; اعتمادا على سمك المادة الفعالة, وقت الانتظار هو 30-120 دقيقة;
تبرد بالفرن بسرعة 30-50 درجة مئوية/ساعة إلى 300 درجة مئوية, ومن ثم تبريد الهواء.
3) التلدين السريع: heating at 350-460°C; holding time for 30-120min; تبريد الهواء.
4) التبريد والشيخوخة: quenching at 495-505°C, water cooling; natural aging at room temperature for 96h.
ولاية: aluminum and aluminum alloy extruded rods (≤22mm, ح112, حالة T6)