Multi-element microalloyed titanium alloy processing method
A technology of microalloying and processing method, which is applied in the processing field of multi-component microalloying titanium alloy, can solve the problems of uneven structure, segregation of solute atoms, hindering recrystallization, etc., and achieve uniform grain size, uniform deformation and good quality. The effect of comprehensive mechanical properties
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Example Embodiment
[0016] Example 1
[0017] This embodiment is based on the processing of a multi-element microalloyed titanium alloy with a weight percentage of 0.5% TiB and TiC, and the molar ratio of TiB and TiC is 4:1.
[0018] Step 1: Using vacuum consumable electric arc furnace smelting to prepare multi-element microalloyed titanium alloy ingots, the weight percentage of TiB and TiC is 0.5%, and the molar ratio of TiB and TiC is 4:1;
[0019] Step 2: Forging the billet in the β interval (1150℃);
[0020] Step 3: Forging in the α+β two-phase interval (840°C);
[0021] Step 4: The material is subjected to recrystallization annealing heat treatment at a heat treatment temperature of 830°C. After the heat treatment, mechanical processing is used to remove defects such as scale, shrinkage and slag inclusion;
[0022] Step 5: Forging the material isothermally at 830℃ with a strain rate of 1×10 -3 / s.
[0023] During the isothermal forging process of this embodiment, the deformation is uniform, the processe...
Example Embodiment
[0024] Example 2
[0025] This embodiment is based on the processing of a multi-element microalloyed titanium alloy with a weight percentage of 1% TiB and TiC, and the molar ratio of TiB and TiC is 4:1.
[0026] Step 1: Use vacuum consumable electric arc furnace smelting to prepare multi-element microalloyed titanium alloy ingots, the weight percentage of TiB and TiC is 1%, and the molar ratio of TiB and TiC is 4:1;
[0027] Step 2: Forging the billet in the β interval (1150℃),
[0028] Step 3: Forging in the α+β two-phase interval (830℃);
[0029] Step 4: The material is subjected to recrystallization annealing heat treatment at a heat treatment temperature of 840°C. After the heat treatment, mechanical processing is used to remove defects such as scale, shrinkage and slag inclusion;
[0030] Step 5: Then forge the material isothermally at 840℃ with a strain rate of 2×10 -2 / s.
[0031] During the isothermal forging process of this embodiment, the deformation is uniform, the processed ma...
Example Embodiment
[0032] Example 3
[0033] This embodiment is based on the processing of a multi-element microalloyed titanium alloy with a 2% weight percentage of TiB and TiC, and the molar ratio of TiB and TiC is 4:1.
[0034] Step 1: Use vacuum consumable electric arc furnace smelting to prepare multi-element microalloyed titanium alloy ingots, the weight percentage of TiB and TiC is 2%, and the molar ratio of TiB and TiC is 4:1;
[0035] Step 2: Forging the billet in the β interval (1140℃),
[0036] Step 3: Forging in the α+β two-phase interval (830℃);
[0037] Step 4: The material is subjected to recrystallization annealing heat treatment at a heat treatment temperature of 840°C. After the heat treatment, mechanical processing is used to remove defects such as scale, shrinkage and slag inclusion;
[0038] Step 5: Forging the material isothermally at 840℃, the strain rate is 1×10 -3 / s.
[0039] During the isothermal forging process of this embodiment, the deformation is uniform, the processed materia...
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