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研究了双重时效、单重时效工艺对?3.9 mmTB3钛合金丝材组织及力学性能的影响。结果表明:TB3钛合金丝材在(α+β)/β转变温度以上固溶处理并经双重时效处理时,随二次时效温度升高,合金强度降低而塑性提高,时效析出的α相变得粗化且分布不均匀;经520~550℃单重时效处理16 h时,随时效温度升高,合金强度降低而塑性升高;与双重时效处理相比,单重时效的合金强度高而塑性略有降低,α相数量增加且分布更为均匀。
The effects of double aging and single aging process on the microstructure and mechanical properties of 3.9 mm TiB 3 Ti alloy wire were studied. The results show that when the temperature is higher than (α + β) / β and the solution aging treatment is performed, the strength of the alloy decreases with the increase of secondary aging temperature. The α phase transformation Coarsened and unevenly distributed. After single aging treatment at 520-550 ℃ for 16 h, the strength of the alloy decreased and plasticity increased with the aging temperature. Compared with the double aging treatment, the single-aged alloy had high strength Plasticity slightly lower, the number of α-phase increases and the distribution is more uniform.