Corrosion behavior of Al-surface-treated steels in liquid Pb-Bi in a pot

Kurata, Yuji; Futakawa, Masatoshi ; Saito, Shigeru

Corrosion tests were performed in oxygen-saturated liquid Pb-Bi at 450 $^{circ}$ C and 550 $^{circ}$ C in a pot for 3000h for Al-surface-treated steels containing various levels of Cr contents. The Al surface treatments were achieved using a gas diffusion method and a melt dipping method. Al $_{2}$ O $_{3}$ , FeAl $_{2}$ and AlCr $_{2}$ produced by the gas diffusion method exhibited corrosion resistance to liquid Pb-Bi, while the surface layer produced by the melt dipping method suffered a severe corrosion attack. Fe $_{4}$ Al $_{13}$ and Fe $_{2}$ Al $_{5}$ produced by the melt dipping method disappeared during the corrosion test at 550 $^{circ}$ C and only FeAl remained.

Language	:	English
Journal	:	Journal of Nuclear Materials
Volume	:	335
Number	:	3
Pages	:	p.501 - 507
Publication Year/Month	:	2004/12
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Paper URL	:	https://doi.org/10.1016/j.jnucmat.2004.08.004
DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	Corrosion; Pb-Bi; Al Surface Treatment; Accelerator Driven System; Spallation Target; Al Compounds
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Registration No. : A20040377
JAEA Abstracts No. : 330163
Paper Submission No. : 21565

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