Fayyaz Osama, Bahgat Radwan A, Sliem Mostafa H, Abdullah Aboubakr Moustafa, Hasan Anwarul, Shakoor R A
Center for Advanced Materials (CAM), Qatar University, 2713 Doha, Qatar.
Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, 2713 Doha, Qatar.
ACS Omega. 2021 Dec 1;6(49):33310-33324. doi: 10.1021/acsomega.1c03117. eCollection 2021 Dec 14.
Superior corrosion resistance along with higher mechanical performance is becoming a primary requirement to decrease operational costs in the industries. Nickel-based phosphorus coatings have been reported to show better corrosion resistance properties but suffer from a lack of mechanical strength. Zirconium carbide nanoparticles (ZCNPs) are known for promising hardness and unreactive behavior among variously reported reinforcements. The present study focuses on the synthesis and characterization of novel Ni-P-ZrC nanocomposite coatings developed through the electrodeposition technique. Successful coelectrodeposition of ZCNPs without any observable defects was carried out utilizing a modified Watts bath and optimized conditions. For a clear comparison, structural, surface, mechanical, and electrochemical behaviors of Ni-P and Ni-P-ZrC nanocomposite coatings containing 0.75 g/L ZCNPs were thoroughly investigated. The addition of ZCNPs has a considerable impact on the properties of Ni-P coatings. Enhancement in the mechanical properties (microhardness, nanoindentation, wear, and erosion) is observed due to reinforcement of ZCNPs in the Ni-P matrix, which can be attributed to mainly the dispersion hardening effect. Furthermore, corrosion protection efficiency (PE%) of the Ni-P matrix was enhanced by the incorporation of ZCNPs from 71 to 85.4%. The Ni-P-ZrC nanocomposite coatings provide an exciting option for their utilization in the automotive, electronics, aerospace, oil, and gas industry.
优异的耐腐蚀性以及更高的机械性能正成为降低工业运营成本的首要要求。据报道，镍基磷涂层具有较好的耐腐蚀性，但机械强度不足。在各种报道的增强材料中，碳化锆纳米颗粒（ZCNPs）以其优异的硬度和惰性而闻名。本研究重点关注通过电沉积技术制备的新型Ni-P-ZrC纳米复合涂层的合成与表征。利用改进的瓦特镀液和优化条件，成功地实现了ZCNPs的共电沉积，且没有任何明显缺陷。为了进行清晰的比较，对含有0.75 g/L ZCNPs的Ni-P和Ni-P-ZrC纳米复合涂层的结构、表面、机械和电化学行为进行了深入研究。ZCNPs的添加对Ni-P涂层的性能有相当大的影响。由于ZCNPs在Ni-P基体中的增强作用，观察到机械性能（显微硬度、纳米压痕、磨损和冲蚀）有所提高，这主要归因于弥散强化效应。此外，通过加入ZCNPs，Ni-P基体的腐蚀防护效率（PE%）从71%提高到了85.4%。Ni-P-ZrC纳米复合涂层为其在汽车、电子、航空航天、石油和天然气行业的应用提供了一个令人兴奋的选择。
