研究了CT20低温钛合金管材的加工工艺及冷轧变形量、退火温度对管材力学性能的影响.结果表明:CT20合金对加工硬化不敏感,冷轧最大变形量应控制在45%以内;CT20合金管材通过不同温度热处理所获得的等轴、双态和片状组织的室温力学性能差别不大;20 K低温下由于孪生变形的发生,片状组织的塑性最好,双态组织则介于片状和等轴组织之间;管材为等轴和双态组织时,冷成型性能优异;对管材进行α+β两相区910℃×1 h,FC的热处理,可获得综合性能优良的双态组织.
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