Corrosion behaviour of Y2O3–ZrO2 coatings on IN713LC in a LiCl–Li2O molten salt
Corrosion behaviour of Y2O3–ZrO2 coatings on IN713LC in a LiCl–Li2O molten salt
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DOI：
10.1016/j.corsci.2010.03.020
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发表时间：
2010-07
影响因子：
8.3
通讯作者：
Soo-Haeng Cho;Byung-Heong Park;J. Hur;Hansoo Lee;K. Song;Jong-Hyeon Lee
中科院分区：
文献类型：
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作者：
Soo-Haeng Cho;Byung-Heong Park;J. Hur;Hansoo Lee;K. Song;Jong-Hyeon Lee
对高温合金试样进行了热腐蚀研究。在IN 713 LC高温合金表面喷涂NiCrAlY渗铝粘结层和氧化钇-氧化锆面层。裸高温合金由于氧化皮的快速生长和热应力导致氧化皮剥落而发生明显的失重。在LiCl-3 wt.%存在下，顶涂层显示出好得多的抗热腐蚀性Li{sub 2}O熔盐与裸高温合金和渗铝粘结涂层的对比。已发现这些涂层有益于提高结构材料对锂熔盐的耐热腐蚀性。
Hot corrosion studies were performed on superalloy specimens. The IN713LC superalloy were sprayed with an aluminized NiCrAlY-bond coat and then with an yttria-zirconia top coat. The bare superalloy reveals an obvious weight loss due to spalling of the scales by the rapid scale growth and thermal stress. The top coatings showed a much better hot corrosion resistance in the presence of LiCl-3 wt.% Li{sub 2}O molten salt when compared with those of the bare superalloy and the aluminized bond coatings. These coatings have been found to be beneficial for increasing hot corrosion resistance of structural materials for lithium molten salts.