Dynamic recrystallization of Ti-6Al-2Zr-1Mo-1V in beta forging process

作者：Ouyang De-lai^*; Wang Ke-lu; Cui Xia

来源：Transactions of Nonferrous Metals Society of China, 2012, 22(4): 761-767.

DOI：10.1016/S1003-6326(11)61242-9

• dynamic recrystallization
• Ti-6Al-2Zr-1Mo-1V alloy
• beta forging process
• compression test

The dynamic recrystallization (DRX) behavior of Ti-6Al-2Zr-1Mo-1V alloy was investigated at deformation temperature of 1000-1100 degrees C and strain rate of 10(-3)-1.0 s(-1) by using compression test. The results show that discontinuous dynamic recrystallization (DDRX) is the predominant recrystallization mechanism at temperature higher than 1050 degrees C and strain rate lower than 0.01 s(-1). Meanwhile, continuous dynamic recrystallization is the main mechanism observed at temperature below 1050 degrees C and strain rate above 0.01 s(-1), mixed with a few DDRX grains. In addition, decreasing strain rate and increasing deformation temperature are found to facilitate the progress of DRX and refinement of grains in the Ti alloy in beta forging process.

• 出版日期2012-4
• 单位南昌航空大学; 南京航空航天大学