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TiC/Ni3Al Composite Coating Synthesized in situ on a Steel and Slurry Erosion Wear Resistance |
ZHU Tao1 JI Xiulin2 ZHANG Qiuyang1 WANG Shuqi1** SHI Wei1 |
1. School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013 2. Engineering Research Center of Dredging Technology, Ministry of Education, Hohai University, Changzhou 213022 |
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Cite this article:
ZHU Tao, JI Xiulin, ZHANG Qiuyang, WANG Shuqi1**SHI Wei. TiC/Ni3Al Composite Coating Synthesized in situ on a Steel and Slurry Erosion Wear Resistance. Chinese Journal of Materials Research, 2013, 27(3): 299-306.
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Abstract A TiC/Ni3Al intermetallic matrix composite coating was fabricated on a steel by gas tungsten arc welding. The microstructure and properties of the coating were investigated. The formation mechanism and erosive wear mechanism of the coating were also discussed. The results show that TiC/Ni3Al coating formed on the steel without any intermediate phases and the distribution of TiC particles is homogeneous. The hardness and the number of particles of the coating increased with increasing (Ti+C) content in the preform. The interface between the coating and steel substrate has a good metallurgical bonding. The morphology of TiC particles changed from fine spherical to equiaxial and then to dendritic shape. From the coating surface to the interface, the distributions of Al, Ni, and Fe are gradual variation. However, Ti exists in the coating in the form of TiC particle. The composite coating has obviously lower mass loss than that of H13 and 0Cr13Ni5Mo steels at any impact angle, showing superior erosion resistance.
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Received: 07 April 2013
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Fund: *Supported by National Natural Science Foundation of China No. 51071078. |
About author: **To whom correspondence should be addressed, Tel: (0511)88797618, E-mail: shuqi_wang@ujs.edu.cn |
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