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Author

Kim, Ji Hyun
UNIST Nuclear Innovative Materials Laboratory(UNIMAT)
Research Interests
  • High temperature water corrosion

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Model of liquid gallium corrosion with austenitic stainless steel at a high temperature

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Title
Model of liquid gallium corrosion with austenitic stainless steel at a high temperature
Author
Shin, Sang HunKim, Seung HyunKim, Ji Hyun
Keywords
FAST-REACTOR; ALLOYS; DISSOLUTION; BEHAVIOR; SODIUM; NICKEL; DIFFUSION; KINETICS; METALS; ZINC
Issue Date
201407
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF NUCLEAR MATERIALS, v.450, no.1-3, pp.314 - 321
Abstract
The purpose of this study is to model the interaction between austenitic stainless steel and liquid gallium at a high temperature to predict the weight loss for potential application as a target material or coolant in an advanced nuclear system. In the present study, models for liquid gallium corrosion with austenitic stainless steel are studied and discussed. This paper presents a mathematical analysis of liquid gallium corrosion, especially the surface recession due to solubility and diffusion, in a static cell, as well as the mass exchange at the liquid/solid interface. Also, a mathematical analysis of liquid gallium alloy (Ga-Sn-Zn) corrosion is conducted in order to study its effect on the diffusion behavior after the addition of alloying elements. The results show that the predicted corrosion behavior agrees well with experimental data and the weight loss of austenitic stainless steel are significantly reduced in gallium alloy compared to those in pure gallium at high temperatures.
URI
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DOI
http://dx.doi.org/10.1016/j.jnucmat.2013.08.006
ISSN
0022-3115
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