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. 9    No. 4    December 1999

[PDF Download]    [Flash Online]

    

Effect of nitrogen addition on microstructures and mechanical propeties of TiAl based alloys
Tang Jiancheng(唐建成); Huang Baiyun(黄伯云); He Yuehui (贺跃辉); Xie Kun(谢鲲)

State Key Laboratory for Powder Metallurgy; Chntral South University of Technology; Changsha 410083; P. R. China

Abstract:Through adding 0 % 3 % (mole fraction) nitrogen in cast TiAl based alloys, it was found that colony size in cast condition decreased from 600 um to 58 um with nitrogen content increasing from zero to 1%and then decreased slowly with further increase of nitrogen content, tensile strength increased with nitrogen content; but comparing to the value of the mother alloy, tensile elongation at room temperature decreased in the alloy with 0. 5 % nitrogen, then recovered in the alloy with 1% nitrogen.

 

Key words:  TiAl based alloys; microstructure; nitrogen addition; grain refinement

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