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. 11    No. 2    April 2001

[PDF Download]    [Flash Online]

    

Diffusion kinetics of nitrogen in tantalum during plasma-nitriding
ZHANG De-yuan(张德元)12, LIN Qin(林 勤)1, ZENG Wei-jun(曾卫军)2
LI Fang(李 放)2, XU Lan-ping(许兰萍)2, FU Qing-f

1. Department of Physical Chemistry, University of Science and Technology Beijing,
Beijing 100083, P.R.China;
2. Institute of Applied Physics of Jiangxi Academy of Sciences,
Nanchang 330029, P.R.China

Abstract:The activation energies of nitrogen in tantalum on plasma nitriding conditions were calculated according to the experimental data of hardness of  plasma-nitriding of tantalum vs time and temperature. The activation energy calculated is 148.873±0.390 kJ/mol. The depth increasing of nitriding layer with time follows square root relation. The nitriding process of tantalum is controlled by diffusion of nitrogen atoms in tantalum solid solution.

 

Key words: tantalum; nitrogen; diffusion activation energy

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