Corrosion test in lead-bismuth for SUS316 with Al powder alloy coating

Kurata, Yuji; Sato, Hidetomo*; Yokota, Hitoshi*; Suzuki, Tetsuya*

Liquid lead-bismuth is a candidate material used for accelerator driven systems and fast reactors. Development of corrosion resistant materials in liquid lead-bismuth is one of important research subjects to realize these systems. In this study improvement of corrosion resistance of 316SS was investigated by means of aluminum powder alloy coating. Aluminum alloys were coated on 316SS using sheets made of Al, Ti and Fe powders, and laser heating. The corrosion test was conducted at 550 $^{circ}$ C for 1000h in liquid lead-bismuth where oxygen concentrations were controlled to be about 510 $^{-6}$ mass%. As a result of the corrosion test, it was found that Al alloy coating protected grain boundary corrosion and surface oxidation of Fe and Cr, which were significant in 316SS substrate.

Language	:	Japanese
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Meeting title	:	日本金属学会2009年秋期(第145回)大会
Held date	:	2009/09
Location (city)	:	京都
Location (country)	:	日本
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Keywords	:	no keyword
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Registration No. : BB20090737
JAEA Abstracts No. :
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