Al-V intermediate alloy for aluminum and preparation method thereof
A master alloy, vanadium-aluminum alloy technology, applied in the field of metallurgy technology and metal materials, can solve the problem that the type of V phase cannot be accurately controlled
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0043] (1) select a pure aluminum block with a purity of 99.9%, place it in a graphite clay crucible and melt it in a well-type resistance furnace;
[0044] (2) Proportionally weighing vanadium-aluminum alloy particles containing V (percentage by weight) is 50%, so that the weight ratio of vanadium-aluminum alloy and pure aluminum block is 2:23;
[0045] (3) After heating the pure aluminum melt to 850°C, adding vanadium-aluminum alloy particles, the size of the added vanadium-aluminum alloy particles is 3-5 mm;
[0046] (4) Pass argon protection into the furnace, and raise the temperature to 1150°C within 30 minutes, and use a hand-held graphite rod to stir the alloy melt clockwise until no particle movement at the bottom of the furnace is felt.
[0047] (5) Insulate at 1150° C. for 10 minutes, and at the same time continue to feed argon protective gas into the furnace, and stir once for 5 minutes and 10 minutes respectively with a graphite stirring paddle, each stirring time ...
Embodiment 2
[0051] The specific method is the same as in Example 1, except that the cooling rate corresponding to the solidification of the water-cooled copper mold in step (6) is 880° C. / s. In the Al-V master alloy for aluminum obtained in this embodiment, V is 3.98% by weight, Fe is 0.11%, and the balance is Al and impurities.
[0052] The microstructure of the Al-V master alloy for aluminum obtained in Example 2 is observed, and the results are shown in figure 2 . It can be seen that the V-containing phases in the alloy structure are all Al 10 V phase, the content is 23.8%, and Al 10 V-phase size is very small.
Embodiment 3
[0054] The specific method is the same as in Example 1, except that the casting mold in step (6) is a refractory material mold, and the corresponding solidification cooling rate is 2.4° C. / s. In the Al-V master alloy for aluminum obtained in this embodiment, V is 4.02% by weight, Fe is 0.14%, and the balance is Al and impurities.
[0055] The microstructure of the Al-V master alloy for aluminum obtained in Example 3 is observed, and the results are shown in image 3 . It can be seen that the V-containing phase in the alloy structure is a large amount of Al 10 V phase and a very small amount of Al 3 V phase, Al 10 V phase and Al 3 The content of V phase is 30.4% and 1.4%, respectively, and Al 10 V phase and Al 3 The V phases are all very thick in size.
PUM
| Property | Measurement | Unit |
|---|---|---|
| size | aaaaa | aaaaa |
| size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More