Fractal Studies on Primary Phase Morphology of TA15 Titanium Alloy after Hot Compressive Deformation

作     者：杨夏炜 朱景川 来忠红 刘勇 占家军 YANG Xia-wei ZHU Jing-chuan~* LAI Zhong-hong LIU Yong ZHAN Jia-jun (School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China)

作者机构：School of Materials Science and Engineering Harbin Institute of Technology 

出 版 物：《Journal of Shanghai Jiaotong university(Science)》 (上海交通大学学报（英文版）)

年 卷 期：2011年第16卷第3期

页      面：343-346页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：compression deformation behaviors fractal dimension TA15 alloy box-counting dimension 

摘      要：The goal of this study is to establish relationships between the hot compression deformation behaviors and the fractal dimension of primary phase morphology of TA15 titanium alloy using the analytical methods of metallurgical microscope and transmission electron microscope coupled with box-counting dimension method. The hot compression deformation behaviors vary with decreasing fractal dimension owing to the change of microstructure caused by different parameters of the hot compressive *** results indicate that TA15 alloy shows dynamic recrystallization characteristics at deformation temperature lower than 850℃while fractal dimension exhibits a moderate decreasing trend with the temperature increasing,and shows dynamic recovery characteristics at deformation temperature higher than 850℃while fractal dimension reduces rapidly with the temperature *** fractal dimension displays non-linear relationship with fraction of primary phase and with aspect ratio of primary phase.