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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
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Volume28Issue:4Pages:477-486
AbstractThe 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.
description.department[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
KeywordPure Titanium Tungsten Inert Gas Welding Simulated Desulfurized Flue Gas Condensates Corrosion Behavior Microstructure Oxide Film
Funding OrganizationNational Natural Science Foundation of China [51131008]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74689
Collection中国科学院金属研究所
Corresponding Authorygzheng@imr.ac.cn
Recommended Citation
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.
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