Article
Materials Science, Coatings & Films
Chenggang Pan, Mingchuan Gong, Siqi Feng, Xiang Chen, Xin Zhao, Peng He
Summary: The combination of Ni-coated TiC reinforcement particles with Ni60 coating using electroless plating significantly improved the preparation quality and enhanced the corrosion resistance and thermal fatigue performance. It showed better weight loss ratio and corrosion mechanism in molten aluminum alloy, demonstrating improved properties in terms of corrosion and thermal fatigue behavior.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Xiaoli Feng, Haifeng Wang, Xuechao Liu, Canming Wang, Hongzhi Cui, Qiang Song, Kun Huang, Neng Li, Xue Jiang
Summary: The addition of Al promotes the formation of the BCC phase, improving corrosion resistance of the coating, but excess Al can decrease the corrosion resistance. Increasing Al content can enhance coating hardness and aggravate lattice distortion.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Metallurgy & Metallurgical Engineering
Min Zeng, Hong Yan, Bao-biao Yu, Zhi Hu
Summary: The laser-clad Ni-WC coating on the surface of AlSi5Cu1Mg alloy exhibits a smooth surface with various phases and WC particles, greatly improved microhardness, and enhanced corrosion resistance compared to the matrix.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Materials Science, Multidisciplinary
Xinyu Wang, Zongde Liu, Kehan Cheng, Yao Kong
Summary: The corrosion properties of four nickel-based cladding layers under chlorine-induced high-temperature corrosion were evaluated using the thickness loss rate. The results show that increasing the Cr content alone does not improve corrosion resistance, but instead worsens internal corrosion. The effect of Mo on enhancing corrosion resistance in laser cladding technology is closely related to its content and distribution. Transverse penetration cracks tend to occur in NiO surrounded by NiCr2O4, while the presence of short rod-like NbO2 enhances the mechanical properties of the NiO layer and eliminates such cracks.
Article
Materials Science, Multidisciplinary
Rui Wang, Changyao Ouyang, Chunjiang Zhao, Runze Wei, Rui Deng, Lianyun Jiang
Summary: Double-layer Fe-based alloy coatings were prepared on ductile cast iron using high-speed laser cladding. The electrochemical corrosion behavior of the coatings in 0.5 mol/L H2SO4 solution was analyzed after heat treatment at 950 degrees C for 1, 2, and 3 hours. The results showed that fine and dispersed particles precipitated in dendrites after 1 and 2 hours of heat treatment, while the precipitates in the dendrites of the 3-hour heat-treated coating aggregated and grew to form blocky structures. The corrosion rate decreased significantly with increasing heat treatment time, and the specimen exhibited the highest self-corrosion potential (-0.15 V) and best corrosion resistance after 3 hours of heat treatment.
Article
Materials Science, Multidisciplinary
Hongling Zhang, Wenjuan Li, Huanhuan Xu, Liang Chen, Junshan Zeng, Zhibing Ding, Wenmin Guo, Bin Liu
Summary: This study aims to improve the glass formation ability of high-entropy amorphous alloys by designing Fe19.6Co19.6Ni19.6Cr19.6(B13.72Si5.88)(19.6)Y-2 alloy through microalloying. The high-entropy amorphous alloy coating exhibits excellent corrosion resistance in NaCl solution.
Article
Materials Science, Multidisciplinary
Yuqiang Feng, Zexu Du, Zhengfei Hu
Summary: This study investigated the influence of Ni addition on the microstructure and corrosion resistance of NiTi coatings prepared on a 316L stainless steel substrate. The addition of Ni led to the formation of fine dendrites and a dense microstructure, promoting the formation of a passive film mainly composed of titanium dioxide. The results demonstrated that the Ni addition improved the corrosion performance of the coatings, with higher pitting potential and lower corrosion current density compared to coatings without Ni addition.
Article
Chemistry, Physical
Rui Wang, Changyao Ouyang, Qihang Li, Qiaofeng Bai, Chunjiang Zhao, Yingliang Liu
Summary: Ni-based alloy coatings with different levels of laser power were prepared using high-speed laser cladding technology to improve the surface corrosion resistance of ductile iron. The microstructure and chemical composition of the coatings became more uniform with an increase in laser power, leading to improved corrosion resistance.
Article
Engineering, Mechanical
Rasid Ahmed Yildiz, Kenan Genel, Turgut Gulmez
Summary: The research experimentally investigated the impact of electroless Ni-B and Ni-W-B coatings on the fatigue and corrosion-fatigue life of 7075 Al alloy. Results showed that Ni-B coating provided superior resistance in both corrosion and corrosion fatigue, leading to considerable improvement in corrosion fatigue performance of coated specimens.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Materials Science, Multidisciplinary
Changyao Ouyang, Qiaofeng Bai, Xianguo Yan, Zhi Chen, Binhui Han, Yan Liu
Summary: This paper investigated the corrosion performance of a laser cladding Fe-based alloy coating on the surface of 27SiMn steel, revealing that the Fe-based alloy coating has better corrosion resistance than the substrate.
Article
Chemistry, Physical
Lipeng Jiang, Xiufang Cui, Guo Jin, Haoliang Tian, Zhimin Tian, Xuerun Zhang, Simin Wan
Summary: The Ni-Ti-Cu/Cu-Al functionally graded coating was proposed and successfully prepared on Mg-Li alloy, exhibiting excellent performance. The top-layer was unaffected by dilution and substrate evaporation, improving the corrosion and wear resistance of the alloy significantly.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Coatings & Films
Gao Jie, Sun Yan, Wang Kangning, Song Qiang, Wang Canming
Summary: The Fe content has a significant effect on the properties of laser cladding Ni60 coatings. As the Fe content increases, the phase structure and corrosion resistance of the coatings change. When the Fe content reaches 25wt%, the corrosion resistance of the coatings becomes comparable to that of Ni60AA, providing a new option for low-cost applications.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Ahsan Riaz Khan, Hai-Jun Zhang, Zhang Jun, Sayed M. Eldin, Norah Saleem Alsaiari, Khadijah Mohammedsaleh Katubi
Summary: Deposition of cerium-based conversion coatings on aluminum alloy through dip coating method significantly improves corrosion resistance in strong corrosive alkaline media by up to 96%.
FRONTIERS IN CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Chenggang Pan, Kaijiang Ma, Xiang Chen, Siqi Feng, Chengjie Fang, Hui Yang, Peng He
Summary: Ni-coated TiC particles were fabricated using electroless plating to improve the wettability with Ni-based alloy and reduce electrical resistivity. Ni-based coatings with Ni-coated TiC-reinforced particles were prepared on H13 steel by induction cladding. Analysis of the microstructure and phase compositions of the coatings showed reduced defects and improved homogeneity. The addition of Ni-coated TiC-reinforced particles increased surface microhardness and slowed down uneven corrosion of the Ni-based coating. Zinc intrusion and corrosive mechanisms were also investigated.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Baiyang Chen, Peihu Gao, Bo Zhang, Daming Zhao, Wei Wang, Can Jin, Zhong Yang, Yongchun Guo, Minxian Liang, Jianping Li, Yongqing Lu, Lu Jia, Dan Zhao
Summary: Plasma transfer arc cladding technology has been widely used in surface engineering and repairing. This study investigated the preparation of multiple cladded thick claddings on CGI substrates using plasma transfer arc cladding technology to improve surface wear resistance. The phase, microstructure, microhardness, and wear resistance of the coatings were characterized. The results showed that the iron-based coatings achieved reduced friction and improved wear resistance, with a similar abrasive wear mechanism to the CGI substrate.