研究了时效制度对原位生成稀土钕氧化物颗粒增强Ti-6Al-4Sn-3.5Zr-0.5Mo复合材料(简称为TMC-2)棒材的组织和性能的影响. 结果表明, 采用直接时效处理可以获得比较高的室温拉伸强度和很低的650 ℃蠕变性能; 而采用1030 ℃/0.5 h/AC+800 ℃/0.5 h/AC+时效的热处理制度, 材料具有较好的拉伸、持久、蠕变和热稳定性等力学性能. 时效温度升高, 拉伸强度降低, 而拉伸塑性、蠕变抗力和热稳定性有所改善.
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