中国有色金属学报（英文版）
中國有色金屬學報（英文版）
중국유색금속학보（영문판）
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2012年
4期
761-767
,共7页
动态再结晶%Ti-6Al-2Zr-1Mo-1V钛合金%β锻%热压缩实验
動態再結晶%Ti-6Al-2Zr-1Mo-1V鈦閤金%β鍛%熱壓縮實驗
동태재결정%Ti-6Al-2Zr-1Mo-1V태합금%β단%열압축실험
dynamic recrystallization%Ti-6Al-2Zr- 1Mo- 1V alloy%β forging process%compression test
通过热压缩实验研究Ti-6Al-2Zr- 1Mo-1V钛合金在变形温度为1000～1100℃,应变速率为10-3～1.0 s-1的条件下的动态再结晶行为.结果表明；在变形温度高于1050℃、应变速率低于0.01s-1时,合金的动态再结晶机制以不连续动态再结晶为主；在变形温度低于1050 ℃、应变速率高于0.01s-1时,合金的动态再结晶机制以连续动态再结晶为主,同时存在少量的不连续动态再结晶.此外,降低应变速率和升高变形温度均能促进动态再结晶进程并使β变形晶粒细化.
通過熱壓縮實驗研究Ti-6Al-2Zr- 1Mo-1V鈦閤金在變形溫度為1000～1100℃,應變速率為10-3～1.0 s-1的條件下的動態再結晶行為.結果錶明；在變形溫度高于1050℃、應變速率低于0.01s-1時,閤金的動態再結晶機製以不連續動態再結晶為主；在變形溫度低于1050 ℃、應變速率高于0.01s-1時,閤金的動態再結晶機製以連續動態再結晶為主,同時存在少量的不連續動態再結晶.此外,降低應變速率和升高變形溫度均能促進動態再結晶進程併使β變形晶粒細化.
통과열압축실험연구Ti-6Al-2Zr- 1Mo-1V태합금재변형온도위1000～1100℃,응변속솔위10-3～1.0 s-1적조건하적동태재결정행위.결과표명；재변형온도고우1050℃、응변속솔저우0.01s-1시,합금적동태재결정궤제이불련속동태재결정위주；재변형온도저우1050 ℃、응변속솔고우0.01s-1시,합금적동태재결정궤제이련속동태재결정위주,동시존재소량적불련속동태재결정.차외,강저응변속솔화승고변형온도균능촉진동태재결정진정병사β변형정립세화.
The dynamic recrystallization (DRX) behavior of Ti-6Al-2Zr-1Mo-1V alloy was investigated at deformation temperature of 1000-1100 ℃ 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 ℃ and strain rate lower than 0.01 s-1.Meanwhile,continuous dynamic recrystallization is the main mechanism observed at temperature below 1050 ℃ 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 β forging process.
