谷艳霞,马爱斌,江静华,宋丹.等通道转角挤压法制备超细晶纯钛的研究进展[J].稀有金属材料与工程,2017,46(12):3639~3644.[Gu Yanxia,Ma Aibin,Jiang Jinghua,Song Dan.Research progress of ultrafine-grained pure titanium produced by equal-channel angular pressing[J].Rare Metal Materials and Engineering,2017,46(12):3639~3644.]
等通道转角挤压法制备超细晶纯钛的研究进展
投稿时间:2016-10-29  修订日期:2017-02-16
中文关键词:    等通道转角挤压(ECAP)  工艺参数  变形  性能
基金项目:中国江苏省自然科学基金 (BK20131373); 中央高校基本科研专项资金(HHU2016B10314);江苏省高校青蓝工程
中文摘要:
      近年来,围绕超细晶纯钛的制备及其性能提升方面开展了许多研究。本文综述了制备超细晶纯钛块材的等通道转角挤压工艺及其重要参数,分析了挤压过程中纯钛的位错滑移及孪晶变形机制。超细晶纯钛的强度、塑性、抗疲劳性能显著提高,而耐蚀性测试结果呈多样性,有待进一步研究。等通道转角挤压和后续热机械处理的结合,可进一步提高超细晶纯钛的综合性能,表明采用ECAP技术制备的超细晶纯钛在各行各业有着广阔的发展前景。
Research progress of ultrafine-grained pure titanium produced by equal-channel angular pressing
英文关键词:Titanium  equal channel angular pressing (ECAP)  processing parameter  deformation  properties
英文摘要:
      Recently, fabrication techniques of ultrafine-grained (UFG) pure titanium have been investigated to achieve enhanced performance. This paper reveals the process and properties of bulk ultrafine-grained pure titanium by equal-channel angular pressing (ECAP), with the influence of experimental parameters. Special attention is given to the deformation mechanisms via dislocation slip and twinning during ECAP. It is demonstrated that the change of microstructure in UFG Ti leads to significant enhancement of mechanical properties. Some mixed results about corrosion resistance of UFG Ti indicate the further investigations necessary. Special emphasis is placed on the combination of ECAP and other treatments for improving overall properties. It is shown that significant enhancement has been made in UFG commercial-purity Ti after ECAP plus thermal-mechanical treatment, suggesting promising prospects of ECAP process for titanium alloys in various industries.
作者单位E-mail
谷艳霞 河海大学力学与材料学院 guyanxiaj@126.com 
马爱斌 河海大学力学与材料学院 aibin-ma@hhu.edu.cn 
江静华 河海大学力学与材料学院  
宋丹 河海大学力学与材料学院  
摘要点击次数: 392
全文下载次数: 133
查看全文  查看/发表评论  下载PDF阅读器
关闭