Method of preparing annular part from Ti2AlNb alloy and TiAl powder
A powder preparation and alloy powder technology, which is applied in the field of static pressure diffusion connection to prepare ring parts, to achieve the effects of expanding the scope of engineering applications, reliable connection, and simple structure
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[0040] The present invention is a Ti 2 AlNb alloy and TiAl powder diffusion bonded annular piece preparation method.
[0041] The specific process is:
[0042] Step 1, prepare materials. Described preparation comprises the Ti of making 2 AlNb discs and prepared TiAl alloy powders.
[0043] According to the design requirements, Ti 2 AlNb alloy forging blank processed into Ti 2 AlNb alloy disk. The Ti 2 The outer surface of the AlNb alloy disc adopts positive tolerance, and the precision is 0~+0.01mm. to Ti 2 The outer surface of the AlNb alloy disk is polished to a surface roughness of less than 0.4.
[0044] The amount of the TiAl alloy powder includes Ti 2 The filling amount of TiAl alloy powder around the AlNb disk 7, and the filling amount in the hemisphere of the inner surface of the end cap of the upper sheath 1 and the filling amount of the hemisphere of the inner surface of the end cap of the lower sheath 2 in the sheath assembly. Both the TiAl alloy powder f...
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