Point defects of B2CoAl and L12 Co3Al alloys studied by a modified analytic EAM model

被引：0
|
作者：
Shu, XL
Hu, WY
Xiao, HN
Zhang, BW
Deng, HQ
机构：
[1] Hunan Univ, Dept Appl Phys, Changsha 410082, Peoples R China
[2] Hunan Univ, Chem & Chem Engn Coll, Changsha 410082, Peoples R China
[3] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MATERIALS & PRODUCT TECHNOLOGY | 2001年
关键词：
embedded atom model; point defects; intermetallic compounds; B2CoAl; Ll(2)Co(3)Al;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A simple modified analytic EAM model for hcp Co and fcc Al metals is used to calculate the formation energies of vacancy and antisite of B2 CoAl and L1(2) Co3Al alloys. The point defect type is Al antisite defects for the Co-rich side and Co antisite defects for the Al-rich side in B2 CoAl. The point defect type is Al antisite defects for the Co-rich side and Co antisite defects for the Al-rich side in L1(2) Co3Al. The lattice constant and elastic constants are calculated. The present calculations are in qualitative agreement with the experimental data and the theoretical results obtained by other authors.
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收藏
页码：670 / 675
页数：6
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