Hot corrosion behavior of Ti3SiC2 in the mixture of Na2SO4-NaCl melts

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	Hot corrosion behavior of Ti3SiC2 in the mixture of Na2SO4-NaCl melts
	G. M. Liu; M. Li; Y. C. Zhou; Y. M. Zhang
	2005
发表期刊	Journal of the European Ceramic Society
ISSN	0955-2219
卷号	25 期号:7 页码:1033-1039
摘要	The corrosion behavior of polycrystalline Ti3SiC2 was studied in the mixture of Na2SO4-NaCl melts with various mass ratios at 850 degrees C. The results demonstrated that Ti-3 SiC2 suffered from serious hot corrosion attack in the mixture of Na-2 SO4-NaCl melts when the concentration of Na2SO4 was higher than 35 wt.%. A large amount of corrosion products spalled from specimens during the tests and obvious mass loss was observed. Hot corrosion of Ti3SiC2 would become severe because NaCl had lower melting-point and caused Na2SO4-NaCl mixture melted below 850 degrees C. However, when the concentration of Na2SO4 was lower than 25 wt.% in the mixture, a protective oxide layer (SiO2 + TiO2) formed on the substrate, the corrosion rate of Ti3SiC2 became quite slow and slight mass gain was observed, the corrosion products did not spall from substrate at 850 degrees C. The microstructure and phase composition of the corroded samples were investigated by SEM/EDS and XRD. (c) 2004 Elsevier Ltd. All rights reserved.
部门归属	chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. nanchang inst aeronaut technol, dept mat sci & engn, nanchang 330034, peoples r china.;liu, gm (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china;gmliu@imr.ac.cn
关键词	Ti3sic2 Corrosion Molten Salts Hot Corrosion Na2so4-nacl Melts Titanium-silicon Carbide Bulk Ceramics Molten-salts Mechanism K2co3
URL	查看原文
WOS记录号	WOS:000228629500007
引用统计	被引频次：26[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34935
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. M. Liu,M. Li,Y. C. Zhou,et al. Hot corrosion behavior of Ti3SiC2 in the mixture of Na2SO4-NaCl melts[J]. Journal of the European Ceramic Society,2005,25(7):1033-1039.
APA	G. M. Liu,M. Li,Y. C. Zhou,&Y. M. Zhang.(2005).Hot corrosion behavior of Ti3SiC2 in the mixture of Na2SO4-NaCl melts.Journal of the European Ceramic Society,25(7),1033-1039.
MLA	G. M. Liu,et al."Hot corrosion behavior of Ti3SiC2 in the mixture of Na2SO4-NaCl melts".Journal of the European Ceramic Society 25.7(2005):1033-1039.