Corrosion Behaviors of Pure Titanium and Its Weldment in Simulated Desulfurized Flue Gas Condensates in Thermal Power Plant Chimney

IMR OpenIR

	Corrosion Behaviors of Pure Titanium and Its Weldment in Simulated Desulfurized Flue Gas Condensates in Thermal Power Plant Chimney
	Wang, Zheng-Bing; Hu, Hong-Xiang; Liu, Chun-Bo; Chen, Huai-Ning; Zheng, Yu-Gui; ygzheng@imr.ac.cn
	2015
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
卷号	28 期号:4 页码:477-486
摘要	The corrosion behaviors of pure titanium and its weldment welded by tungsten inert gas (TIG) welding in simulated desulfurized flue gas condensates in thermal power plant chimney were investigated using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and immersion tests. The effects of heat input and shielding gases on the corrosion behavior of the welded titanium were also studied. Grain coarsening and Widmanstatten structure were found in both the fusion zone and the heat-affected zone. The welded titanium exhibited active passive behavior in the simulated condensates. Both the polarization curves and EIS measurements confirmed that TIG welding process with different parameters had few effects on the corrosion behavior. It was proved that the microstructure changes were not the key material factors affecting the corrosion behavior of pure titanium under the test conditions, while the oxide film had remarkable effect on improving the corrosion resistance.
部门归属	[wang, zheng-bing ; hu, hong-xiang ; zheng, yu-gui] chinese acad sci, key lab nucl mat & safety assessment, inst met res, shenyang 110016, peoples r china ; [liu, chun-bo] huadian zhengzhou mech design inst co ltd, ctr wear & corros resistant mat, zhengzhou 450015, peoples r china ; [chen, huai-ning] chinese acad sci, lab properties & reliable joining welded joints, inst met res, shenyang 110016, peoples r china
关键词	Pure Titanium Tungsten Inert Gas Welding Simulated Desulfurized Flue Gas Condensates Corrosion Behavior Microstructure Oxide Film
资助者	National Natural Science Foundation of China [51131008]
收录类别	sci
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/74689
专题	中国科学院金属研究所
通讯作者	ygzheng@imr.ac.cn
推荐引用方式 GB/T 7714	Wang, Zheng-Bing,Hu, Hong-Xiang,Liu, Chun-Bo,et al. Corrosion Behaviors of Pure Titanium and Its Weldment in Simulated Desulfurized Flue Gas Condensates in Thermal Power Plant Chimney[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2015,28(4):477-486.
APA	Wang, Zheng-Bing,Hu, Hong-Xiang,Liu, Chun-Bo,Chen, Huai-Ning,Zheng, Yu-Gui,&ygzheng@imr.ac.cn.(2015).Corrosion Behaviors of Pure Titanium and Its Weldment in Simulated Desulfurized Flue Gas Condensates in Thermal Power Plant Chimney.ACTA METALLURGICA SINICA-ENGLISH LETTERS,28(4),477-486.
MLA	Wang, Zheng-Bing,et al."Corrosion Behaviors of Pure Titanium and Its Weldment in Simulated Desulfurized Flue Gas Condensates in Thermal Power Plant Chimney".ACTA METALLURGICA SINICA-ENGLISH LETTERS 28.4(2015):477-486.