TC11钛合金片层组织热变形球化动力学过程  

Hot Deformation Globularization Kinetic Processes of TC11 Titanium Alloy with Lamellar Structure

作　　者：陈慧琴[1,2] 曹春晓[1] 郭灵[1] 林海[1] 

机构地区：[1]北京航空材料研究院,北京100095 [2]太原科技大学,太原030024

出　　处：《航空材料学报》2009年第1期37-42,共6页Journal of Aeronautical Materials

摘　　要：通过热压缩试验研究了TC11钛合金退火态片层组织在两相区980℃，950℃，850℃，应变速率0．001s^-1，0．01s^-1条件下，变形程度30％～70％范围内的热变形过程。分析了热变形参数对变形行为和片层组织球化过程的影响，并根据片层组织球化分数演变特征，建立了修正的Avrami片层组织球化动力学方程，与试验数据吻合较好。Hot deformation processes of TCI1 with β-annealed lamellar structure were investigated over the range of temperature 980℃, 950℃ , 800℃ , strain rate 0.001 s^-1 and 0. 1s^-1, and reduction from 30% to 70% by hot compression tests. The effects of thermal-mechanical parameters on deformation behavior and globularization processes were analyzed. According to the characteristic of globularization fraction evolution, a modified Avrami globularized kinetic model was established, which is identical to test data well.

关 键 词：TC11钛合金 片层组织 热变形 球化 

分 类 号：TG146.2[一般工业技术—材料科学与工程]