杜阳,李拔,付航,童帅,胡建文,孙新军.EB炉流程纯钛的热变形和动态再结晶行为研究[J].稀有金属材料与工程,2021,50(1):29~34.[Du Yang,Li Ba,Fu Hang,Tong Shuai,Hu Jianwen,Sun Xinjun.Study on hot deformation and dynamic recrystallization behavior of pure titanium in EB furnace process[J].Rare Metal Materials and Engineering,2021,50(1):29~34.]
EB炉流程纯钛的热变形和动态再结晶行为研究
投稿时间:2019-11-26  修订日期:2020-12-20
中文关键词:  纯钛  EB炉  热变形  动态再结晶  机制
基金项目:国家重点研发计划
中文摘要:
      通过热压缩实验研究了原始晶粒尺寸为厘米级的EB炉流程纯钛在不同变形温度和变形速率下的热变形行为,并基于电子背散射衍射(EBSD)技术对EB炉流程纯钛的再结晶机制进行了探讨。结果表明:厘米级的EB炉流程纯钛在热变形过程中的加工硬化行为具有典型的“三阶段”特征:第一阶段线性快速下降;第二阶段迅速回升至一个峰值;第三阶段从峰值又开始下降,这与变形过程中的孪生现象有关;EBSD结果表明超粗晶粒纯钛在热变形过程中的再结晶机制主要是非连续动态再结晶。
Study on hot deformation and dynamic recrystallization behavior of pure titanium in EB furnace process
英文关键词:pure titanium  EB furnace  hot deformation  dynamic recrystallization  mechanism
英文摘要:
      The hot deformation behavior of pure titanium in EB furnace process (EB-Ti) with centimeter scale original grain size at different deformation temperature and deformation rate was studied by thermal compression experiment, and the recrystallization mechanism of EB-Ti was discussed based on the electron back scattering diffraction (EBSD) technology. The results show that the hardening behavior of EB-Ti in the process of hot deformation has typical "three-stage" characteristics. In the start stage, the hardening ability is rapid linearly declined; in the middle stage, it rapidly recovers to a peak; in the final stage, it re-declines from the peak. The three-stage phenomenon is related to twinning in the deformation process. EBSD results also show that the recrystallization mechanism of EB-Ti in the process of hot deformation is mainly a discontinuous dynamic recrystallization.
作者单位E-mail
杜阳 河北科技大学材料学院 15531083932@163.com 
李拔 北京钢铁研究总院工程用钢所 balicugb@sina.com 
付航 河北科技大学材料学院 fh626983712@126.com 
童帅 北京钢铁研究总院 tongshuai@cisri.com.cn 
胡建文 河北科技大学材料学院 1103907566@qq.com 
孙新军 北京钢铁研究总院 sunxinjun@cisri.com.cn 
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