TZM Alloy Boat Molding Temperature
As we all know, the temperature has a great influence on the performance of metal. Generally, the processing temperature of metal is slightly higher than the ductile-brittle transition temperature, but below the recrystallization temperature. During TZM alloy boat manufacturing, should well control the molding temperature, which has a significant impact on TZM alloy boat’s properties. Its molding temperature is higher than the ductile-brittle transition temperature, but below the recrystallization temperature. TZM alloy has high melting point, high strength, good corrosion resistance and good high temperature mechanical properties, but it is room temperature brittle is large and high temperature oxidation resistance is poor, therefore it hard to machining. For this material, should process when the material has good plasticity, so as to obtain high-quality products.
Though stamping and welding TZM alloy plates can obtain TZM alloy boat, and it is essential to select the molding temperature in this process. When the material has good plasticity, which is easy to carry out the process, but also can obtain high-performance products. TZM alloy ductile-brittle transition temperature range is form -95 ℃ to -45 ℃. Its ductile-brittle transition temperature is below than room temperature, so the TZM alloy can be processed between room temperature and recrystallization temperature. The initial recrystallization temperature of alloy is 1150 ℃. Alloy plate crack drawing depth was observed at different temperatures found alloy at 25 ℃, 100 ℃, 300 ℃, 600 ℃, 700 ℃, 800 ℃, 900 ℃ and 1000 ℃ the crack drawing depth was 23mm, 32.5mm , 29.375mm, 42.16mm, 32.59mm, 31.15mm, 29.28mm, 16.73mm. The alloy crack drawing depth reached the highest value at 600 ℃, and therefore 600 ℃ most beneficial to the alloy plate plastic working. And TZM alloy boat material molding temperature is 600 ℃.
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