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Effect of titanium alloy hot process on Microstructure and properties of thick plate
Release time:
2022-05-24 11:34
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In this paper, the effects of two hot working processes on the microstructure and mechanical properties of bti-6431s high temperature titanium alloy thick plate were studied. The test results show that the structure type of ( + β) rolled thick plate is similar to the equiaxed two-phase zone processing structure, and the microstructure of βrolled thick alloy plate is a typical fine lamellar widmanstatten structure. The room temperature and high temperature strength of this structure thick plate is significantly higher than that of + βrolled thick plate, and the plasticity is slightly lower. The comprehensive analysis shows that the alloy thick plate has high instantaneous strength at 650 ℃ and can be used in the fabrication of 650 ℃ short-term structural parts in aerospace industry. The nominal composition of bti-6431s titanium alloy is ti-6.5al-3sn-3zr-3nb-3mo-1w-0.2si.
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