MATEC Web Conf.
Volume 114, 20172017 International Conference on Mechanical, Material and Aerospace Engineering (2MAE 2017)
|Number of page(s)||6|
|Section||Chapter 2: Materials|
|Published online||10 July 2017|
Effects of TiO2 Addition on the Electrochemical Performance of the Overlay Welded High-manganese Steel Cladding
1 Guangdong Welding Institute (China-Ukraine E. O. Paton Institute of Welding) Guangdong Provincial Key Laboratory of Advanced Welding Technology
2 Foshan University
a Corresponding author: firstname.lastname@example.org
Series of overlay flux-cored wires with different content of TiO2 were fabricated, and different claddings of high-manganese steel are welded by flux cored arc welding (FCAW). The influences of TiO2 addition on the electrochemical behaviour of the FCAW claddings over a high-manganese steel were studied. The results demonstrate that all the LPR values of the overlay welded claddings are higher than that of the base metal. However, the LPR values did not increase with the addition of TiO2. The EIS simulation results indicate that the addition of titanium dioxide improves the corrosion resistance of the high-manganese steel cladding, and the trends of the Rp values is highly consistent with the change of LRP value. At the same time, the grain refinement was achieved by the TiO2 addition. In conclusion, the proper content of the titanium dioxide in high-manganese steel cladding contributes to its high LRP and Rp values, in this paper, the suitable content of the TiO2 addition is 20g (0.2wt.%).
© The Authors, published by EDP Sciences, 2017
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