您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 18    No. 1    January 2008

[PDF Download]    

    

Deformation behavior of TC1 titanium alloy sheet under double-sided pressure
WANG Zhong-jin(王忠金), SONG Hui(宋 辉),WANG Zhe(王 哲)

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Abstract:In order to investigate the influence of normal stress through thickness on the formability of sheet metal, the viscous pressure bulge(VPB) tests of an annealed TC1 titanium alloy sheet were carried out under two different conditions: double-sided pressure bulging and conventional single-sided pressure bulging. The automated strain analysis, measurement environment (ASAME) and scanning electron microscope(SEM) were used to study the strain distributions and the fracture morphology of bulged specimens. It is found that thickness strain is increased for double-sided pressure bulging specimens, and the limiting dome height(LDH) of double-sided pressure bulging specimens is increased by 31.8% compared with conventional single-sided pressure bulging specimens. The dimples in fracture surface for double-sided pressure bulging specimens are larger and deeper than those for conventional single-sided pressure bulging specimens. The results indicate that normal stress through thickness is helpful in improving the formability of titanium alloy sheet metal.

 

Key words: titanium alloy TC1; sheet; bulging; double-sided pressure; formability

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn