TA11钛合金亚动态再结晶行为研究  

Study on metadynamic recrystallization behavior of TA11 titanium alloy

作　　者：齐广霞[1] 于广义[1] 陈晓峰[2] 

机构地区：[1]沈阳理工大学材料科学与工程学院,辽宁沈阳110159 [2]沈阳黎明航空发动机(集团)有限责任公司,辽宁沈阳110043

出　　处：《锻压技术》2011年第2期111-115,共5页Forging & Stamping Technology

摘　　要：为研究TA11（Ti-8Al-1Mo-1V）钛合金的亚动态再结晶行为,采用Gleeble-3500热模拟实验机对TA11合金进行变形温度为910~1010℃、应变速率为0.01~10 s-1、道次间隔时间为1~20 s的双道次热压缩变形实验。结果表明,道次间隔时间越长、应变速率越大、变形温度越高,亚动态再结晶体积分数越大。基于实验结果,建立了TA11合金的亚动态再结晶动力学模型,此模型计算结果与实验所测结果比较吻合。To research the metadynamic recrystallization behavior of TA11（Ti-8Al-1Mo-1V）titanium alloy,the double-pass hot compression deformation test of TA11 at temperature between 910 and 1010 ℃,strain rate between 0.01 and 10 s-1,holding time between 1 and 20 s was carried out using Gleeble-3500 thermal simulation experiment equipment.The results show that the longer the inter-pass time,the higher the stain rate and the deformation temperature,the bigger volume fraction of the metadynamic recrystallization.is Based on the test results,the metadynamic recrystallization kinetic model of the TA11 titanium alloy was established and the results calculated with the models are close to the measured values.

关 键 词：TA11钛合金 亚动态再结晶 双道次热压缩实验 动力学模型 

分 类 号：TG115[金属学及工艺—物理冶金]