Diffusion connection method for TiAl alloy and Ti2AlNb alloy
A technology of diffusion bonding and alloying, which is applied in the direction of welding/welding/cutting articles, welding equipment, metal processing equipment, etc. It can solve the problems of difficult control of interface structure and complicated diffusion bonding process, and achieve the elimination of defects such as interface holes and the diffusion of elements. The effect of a fast, reliable connection
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Embodiment 1
[0030] The concrete process of this embodiment is:
[0031] Step 1: Cut the sample. TiAl alloy and Ti 2 AlNb alloys are processed by wire cutting respectively to obtain the TiAl alloy samples and TiAl alloy samples to be connected according to the design requirements. 2 AlNb alloy samples.
[0032] Step 2: Surface treatment. The resulting TiAl alloy to be joined and Ti 2 The connection surface of the AlNb alloy is finely ground by a grinding machine to eliminate obvious scratches on the surface to be connected, and then mechanically polished with 1.5# diamond grinding and polishing paste to make the surface to be connected show a mirror effect, and then the sample is immersed in absolute ethanol and ultrasonically Degreasing treatment for 5 minutes, and placed in absolute ethanol for storage.
[0033] Step 3: Make the assembly parts. Apply solder stopper to the part of the fixture close to the edge of the welded sample. Put the TiAl alloy in the jig, and then put the Ti...
Embodiment 2
[0038] The concrete process of this embodiment is:
[0039] Step 1: Cut the sample. TiAl alloy and Ti 2 AlNb alloys are processed by wire cutting respectively to obtain the TiAl alloy samples and TiAl alloy samples to be connected according to the design requirements. 2 AlNb alloy samples.
[0040] Step 2: Surface treatment. The resulting TiAl alloy to be joined and Ti 2 The connection surface of the AlNb alloy is finely ground by a grinding machine to eliminate obvious scratches on the surface to be connected, and then mechanically polished with 1.5# diamond grinding and polishing paste to make the surface to be connected show a mirror effect, and then the sample is immersed in absolute ethanol and ultrasonically Degreasing treatment for 5 minutes, and placed in absolute ethanol for storage.
[0041] Step 3: Make the assembly parts. Apply solder stopper to the part of the fixture close to the edge of the welded sample. Put the TiAl alloy in the jig, and then put the Ti...
Embodiment 3
[0046] The concrete process of this embodiment is:
[0047] Step 1: Cut the sample. TiAl alloy and Ti 2 AlNb alloys are processed by wire cutting respectively to obtain the TiAl alloy samples and TiAl alloy samples to be connected according to the design requirements. 2 AlNb alloy samples.
[0048] Step 2: Surface treatment. The resulting TiAl alloy to be joined and Ti 2 The connection surface of the AlNb alloy is finely ground by a grinding machine to eliminate obvious scratches on the surface to be connected, and then mechanically polished with 1.5# diamond grinding and polishing paste to make the surface to be connected show a mirror effect, and then the sample is immersed in absolute ethanol and ultrasonically Degreasing treatment for 5 minutes, and placed in absolute ethanol for storage.
[0049] Step 3: Make the assembly parts. Apply solder stopper to the part of the fixture close to the edge of the welded sample. Put the TiAl alloy in the jig, and then put the Ti...
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