Preparation of WC + NbC Particle-Reinforced Ni60-Based Composite Coating by Laser Cladding on Q235 Steel
Source abstract
Abstract
In this paper, the preparation of Ni60 + WC/NbC composite coating by laser cladding technology was studied. The coating properties were analyzed by a scanning electron microscope (SEM), an energy dispersion spectroscope (EDS), X-ray diffraction (XRD), a hardness tester, and a friction and wear tester. The results show that WC and NbC, as two typical ceramic reinforcing phases, play a positive role in improving the wear resistance and hardness of the coating. Under the action of a high-temperature (about 2500 °C) laser beam, some complex compounds, such as Ni3Fe and M23C6 (M=Fe, Cr) are formed in the coating, which leads to the left deviation of XRD peak position. With the decrease in WC and the increase in Nb particles, the wear mechanism of the coating changes from abrasive wear to adhesive wear. When adding 10% WC, the microhardness of the coating reaches 809.5 HV, the coefficient of friction is 0.496, and the wear rate is 1.1804 × 10−7 mm3 N−1·m−1, which shows the best wear resistance.
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Research context
OpenAlex topics: High Entropy Alloys Studies · Advanced materials and composites · High-Temperature Coating Behaviors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Electronics and Information Engineering, Guangdong Ocean University, Zhanjiang 524088, China
Guangdong Provincial Key Laboratory of Intelligent Equipment for South China Sea Marine Ranching, Guangdong Ocean University, Zhanjiang 524088, China
College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088, China
School of Materials Science and Engineering, Guangdong Ocean University, Yangjiang 529500, China
Funding
National Natural Science Foundation Projects of China · Project of Postgraduate Demonstration Courses of Department of Science and Technology of Guangdong Province · Projects of Young Innovative Talents in Colleges and Universities in Guangdong Province · Laser Processing Team Project of Guangdong Ocean University
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