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研究单重时效、低温-高温双重时效、时效加热速度等工艺对Ti-10V-2Fe-3Al合金显微组织和力学性能的影响.结果表明:经过高温变形后的合金,在双重时效处理过程中,先析出的ω相为α相的沉淀析出提供均匀的形核点,使合金获得比单重时效处理更加均匀细小的α+β显微组织,获得更好的强韧化匹配;合金在以较低的升温速度(0.1℃/s)加热过程中,细小弥散分布的等温ω相有充足的时间析出,从而为后续α相的析出提供有利的形核位置,产生细小盘状α相,获得与双重时效相同的强韧化匹配效果.

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