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. 17    Special 1    November 2007

[PDF Download]    [Flash Online]

    

Influence of deformation parameters on microstructure and mechanical properties of TA15 titanium alloy
ZHU Jing-chuan(朱景川), WANG Yang(王  洋), LIU Yong(刘  勇),
LAI Zhong-hong(来忠红), ZHAN Jia-jun(占家军)

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

Abstract:The influence of deformation parameters including deformation temperature, degree and speed on the microstructure and mechanical properties of TA15 titanium alloy was studied. The volume fraction, size and aspect ratio of primary α phase in deformed TA15 titanium alloy were quantitatively characterized. With increasing deformation temperature, the volume fraction and size of primary α phase decrease. The aspect ratio of primary α phase decreases with increasing deformation temperature. The tensile strength of TA15 alloy deformed at 0.1 mm/s is higher than that at 0.3 mm/s. After thermoforming at 960 ℃, 0.1 mm/s, the tensile strength is the highest up to 1 035 MPa and the elongation is 13.5%. When the thermoforming temperature is 1 050 ℃, the strength and elongation are both relative low, because the microstructure is Widmanstaten structure.

 

Key words: TA15 titanium alloy; deformation; microstructure; mechanical properties

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