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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 7    No. 1    March 1997

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MECHANISM OF Re-B-V CO-PERMEATION
Li Fengzhen; Liu Zhaojing; Jin Quan; Xu Zhihui

Department of Materials Science and Engineering; Harbin University of Science and Technology; Harbin 150080

Abstract:The influence factors and the kinetic conditions of the Re B V co permeation by pasty agent were studied. It is shown that the Re elements in the pasty agent have obvious catalytic effects on the permeation under suitable technical conditions; KBF 4 has an important effect on the permeation of the activated atoms. The formation of the permeated layer was analyzed both theoretically and experimentally, and based on the analysis, the mechanism of the Re B V co permeation was revealed.

 

Key words: Re B V co permeation mechanism kinetics rare earth pasty agent

ISSN 1672-7029
CN 43-1423/U

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