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[CN 201710522905.9] A Forging Method for Improving Uniform Refinement of Microstructure of Ti80 Titanium Alloy by Using Free Forging Hammer
[CN 201710522905.9] A Forging Method for Improving Uniform Refinement of Ti80 Titanium Alloy Microstructure by Using Free Forging Hammer Title: A Forging Method for Improving Uniform Refinement of Ti80 Titanium Alloy Microstructure by Using Free Forging Hammer Application Number: CN 201710522905.9 Applicant: Shaanxi Hongyuan Aviation Forging Co., Ltd. Application Date: 2017-6-30 Patent Type: Invention Application The present invention relates to a Forging Method for Improving Uniform Refinement of Ti80 Titanium Alloy Microstructure by Using Free Forging by Using Free Forging of Free Hammer, Step 1, the forging temperature is Tβ 100 ℃ ~ Tβ 150 ℃ at the phase change point; Step 2: Heating in a natural gas furnace, the forging temperature is Tβ 70 ℃ ~ Tβ 80 ℃ at the phase change point; Step 3: Heating in an electric furnace, the forging temperature is Tβ 20 ℃ ~ Tβ 30 ℃ at the phase change point; Step 4: Heating in an electric furnace, forging temperature is Tβ 5 ℃ to Tβ 10 ℃ under the phase change point; Step 5: Heating in the electric furnace, forging temperature is Tβ-15 ℃ to Tβ-25 ℃ under the phase change point; Step 6: Heating in the electric furnace, forging temperature is Tβ-15 ℃ to Tβ-25 ℃ under the phase change point. When Ti80 is changed to forging, the above-mentioned standard forging process scheme is used to obtain a typical equiaxed structure, and the equiaxed α phase is distributed on the transformation β matrix, and the equiaxed α phase content reaches more than 80%, and the equiaxed degree is good.
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