Alloying method for improving high-temperature performance of directionally solidified titanium-aluminum alloy and prepared titanium-aluminum alloy
A titanium-aluminum alloy, directional solidification technology, applied in the direction of improving energy efficiency, improving process efficiency, manufacturing tools, etc., can solve problems such as easy contamination of melts, and achieve solutions to easy contamination of melts, reducing melt contamination, and hindering position. The effect of wrong movement
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[0034] Example 1
[0035] This embodiment provides an alloying method for improving the high temperature performance of directionally solidified titanium-aluminum alloy. The method is completed by using electromagnetic cold crucible directional solidification forming equipment. The equipment mainly includes the following components: (1) Electromagnetic field melting system, mainly including water cooling Copper crucible and electromagnetic induction coil; (2) Cooling system, mainly including water cooling of crucible and furnace body and cooling of titanium aluminum alloy by container containing cooling liquid during solidification; (3) Motion system, mainly including pulling system and The feeder system is driven by two independent servo systems; (4) The vacuum system mainly consists of a diffusion pump, a vacuum pump and a vacuum chamber; (5) The control system is mainly responsible for the precise control of heating power and vacuum during the directional solidification proc...
Example Embodiment
[0041] Example 2
[0042] This embodiment provides an alloying method for improving the high temperature performance of directionally solidified titanium-aluminum alloy. The method is completed by using electromagnetic cold crucible directional solidification forming equipment. The equipment mainly includes the following components: (1) Electromagnetic field melting system, mainly including water cooling Copper crucible and electromagnetic induction coil; (2) Cooling system, mainly including water cooling of crucible and furnace body and cooling of titanium aluminum alloy by container containing cooling liquid during solidification; (3) Motion system, mainly including pulling system and The feeder system is driven by two independent servo systems; (4) The vacuum system mainly consists of a diffusion pump, a vacuum pump and a vacuum chamber; (5) The control system is mainly responsible for the precise control of heating power and vacuum during the directional solidification proc...
Example Embodiment
[0048] Example 3
[0049] Based on the same electromagnetic cold crucible directional solidification molding equipment as in Embodiment 2, the present embodiment provides an alloying method for improving the high temperature performance of directional solidification titanium-aluminum alloy, including the following steps:
[0050] Step 1. A ternary high-niobium-titanium-aluminum alloy ingot is prepared by primary arc melting and secondary vacuum induction melting. The composition ratio of the titanium-aluminum alloy ingot is composed of the following atomic percentages: Al 45.89at.%, Nb 7.08at %, W0.44at.%, Cr 0.63at.%, B 0.11at.%, the balance is Ti, and the sum of each component is 100%;
[0051] The primary arc smelting is to prepare the alloy raw material into a primary smelting ingot by using the vacuum consumable arc smelting equipment commonly used in the prior art. Then put the first smelted ingot into the cold crucible vacuum induction melting furnace for secondary sme...
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