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文章研究了锻造工艺对TA11钛合金棒材显微组织、力学性能及组织均匀性的影响。结果表明:锻造温度升高,棒材组织由等轴组织转变为双态组织,同时提高了棒材组织均匀性;锻造温度越接近相变点,锻后棒材显微组织中初生α相越少,β相及分布于β基体的次生α相越多,次生α相形态趋向局部取向一致的细针状;较少的初生α相加细针状的次生α相可得到良好的抗蠕变性能;提升锻造温度后,可提高棒材超声探伤水平。
The article studies the forging process on the microstructure, mechanical properties and the uniformity of the TA11 titanium alloy bar. The results show that when the forging temperature is increased, the bar structure changes from isometric to bimorphic structure, and the uniformity of the bar structure is improved. The forging temperature is closer to the transformation point. The primary alpha phase in the microstructure of the bar after forging The fewer secondary phase α and β phase, and the secondary α phase distributed in β matrix, the secondary α phase tends to be finely needle-like with local orientation; fewer primary α-phase fine needle-shaped secondary α phase can obtain good Creep resistance; enhance forging temperature, can improve the level of ultrasonic testing of bars.