Article
Materials Science, Multidisciplinary
Tianyi Zhang, Lianjun Hao, Zaihao Jiang, Chao Liu, Libin Zhu, Xuequn Cheng, Zhiyong Liu, Ning Wang, Xiaogang Li
Summary: Rare earth (RE) decreases the initial corrosion susceptibility of Zr-Ti deoxidized low alloy steel in a simulated marine environment. This is achieved by modifying the properties of inclusion and pearlite. The dissolution of (RE)2O2S and (RE)xSy inclusions causes localized acidification, suppressing the hydrolysis of Ca2+ and inhibiting the deposition of CaCO3. This improves the compactness of the rust layer initially.
Article
Chemistry, Inorganic & Nuclear
Ziqi Zhang, Yan Zhang, Siqi Zhang, Kaida Yao, Yueqiu Sun, Yang Liu, Xiangzhi Wang, Weimin Huang
Summary: This study successfully increased the corrosion resistance and antibacterial properties of titanium by synthesizing a new Ce doped MIL metal-organic framework derivative and coating it on titanium with hydroxyapatite. The MOF-hydroxyapatite composite coating maintained the original biocompatibility of titanium while enhancing its performance against corrosion and bacterial infection.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Linping Yu, Long Chen, Qizhi Chen, Luli Feng, Ziyi Xu, Bo Nan, Xiyue Kang, Yuehui He
Summary: This study successfully fabricated a Ni-Cu alloy foil with a thickness of 12.0 micrometers using electrodeposition combined with vacuum sintering. The alloy foil showed excellent corrosion resistance and defect-free surface, providing new possibilities for the future development of integrated electronic or medical devices.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Metallurgy & Metallurgical Engineering
Hiba Azzeddine, Abdelkader Hanna, Achour Dakhouche, Berengere Luthringer-Feyerabend
Summary: The corrosion behavior of as-cast binary Mg-0.3Ce, Mg-1.44Nd, Mg-0.63Gd and Mg-0.41Dy alloys was investigated in DMEM+ 10% FBS solution using electrochemical and weight loss tests. Alloys with heavy RE elements (Gd and Dy) exhibited the lowest corrosion rate compared to those with light RE elements (Ce and Nd). The cytocompatibility of the Mg-RE alloys was assessed, with Mg-0.63Gd alloy identified as a suitable candidate for biomedical applications.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Materials Science, Coatings & Films
F. Geramipour, S. M. Mousavi Khoei, H. Shooshtari Gugtapeh
Summary: The research discovered that applying pulse electrodeposition with a triangular waveform to Ni-Cu alloy coatings resulted in the best corrosion resistance, while using a ramp waveform led to the lowest surface roughness and grain size. Additionally, the corrosion resistance of the Ni-Cu alloy coatings was found to depend significantly on the molar fraction of Cu in solid solution and the crystallographic orientation, with the highest corrosion resistance associated with the largest molar fraction of Cu in solid solution and growth of grains at (111) orientation.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Begum Unveroglu
Summary: Electrochemical deposition of Ni metal matrix composite coatings is commonly used to enhance the corrosion resistance and hardness of materials. In this study, Ni-Cu and Ni-Cu/CeO2 metal matrix coatings were fabricated on SS 304 substrates via electrodeposition. The addition of CeO2 particles into the electrolyte resulted in a more negative shift of the hydrogen evolution reaction and a slightly accelerated deposition of Ni ions. Compositional analyses revealed a higher Ni fraction in the deposit with CeO2-containing electrolyte. XRD measurements confirmed the presence of Ni-Cu solid solutions in all coatings and the presence of CeO2 in the ceramic reinforced layer. The morphology of the coatings changed from cauliflower-like to a denser layer with the addition of CeO2. The hardness of the samples increased and the corrosion current density decreased with the addition of CeO2, indicating an improved performance for the Ni-Cu/CeO2 metal matrix composite coating. The findings were also supported by Nyquist and Bode plots in the potentiodynamic polarization tests.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Physical
Mohammad Ebrahim Haji Naghi Tehrani, Mehdi Malekan, Bahram Ramezanzadeh
Summary: This paper introduces a novel bulk metallic glass (BMG) containing erbium (Er) element and high anticorrosive capacity. The utilization of Er element (2% at.) in the Cu50Zr43Al7 protective film for its anticorrosive properties was investigated. Surface and corrosion studies were carried out using XRD, GIXRD, AFM, SEM/EDS, XPS, EIS, and potentiodynamic polarization tests. The results showed that the presence of 2% Er element led to higher corrosion resistance at different time intervals compared to other specimens.
Article
Metallurgy & Metallurgical Engineering
Xin-Tong Lian, Long Chen, Zeng-Wei Fan, Teng-Shi Liu, De-Xiang Xu, Han Dong
Summary: This study focuses on the influence of rare earth elements on the morphology and distribution of inclusions and precipitates in low alloy steel, and finds that the modification of rare earth inclusions significantly improves the corrosion properties and impact behavior of the steel.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Huilong Zhong, Shengci Li, Zhiqian Zhang, Dehua Li, Hongling Deng, Jiqiang Chen, Liang Qi, Olanrewaju A. Ojo
Summary: This study evaluated the effects of rare earth elements (Er, Pr) on the microstructure, mechanical properties, and corrosion resistance of 7055 alloys. It was found that the addition of rare earth elements reduced the number of residual phases and increased the proportion of low angle grain boundaries (LAGBs). The 7055 alloy with Pr had the lowest number of residual phases, while the 7055 alloy with Pr and Er had the highest proportion of LAGBs. Compared to the untreated 7055 alloy, the alloys with rare earth elements exhibited improved elongation and corrosion resistance.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Fang-Fang Xu, Yong Zhao, Yue Xu
Summary: Non-toxic and non-polluting rare earth and silane (RE-Si) composite conversion coatings were applied to the surface of magnesium-lithium alloy to improve its poor corrosion resistance. The parameters for coating preparation were determined, and the influence of doping nanoparticles on the composite coating was discussed. The corrosion resistance of specimens with RE-Si composite conversion coating was greatly improved compared to those without coating.
Article
Materials Science, Multidisciplinary
Yunting Guo, Zezhou Xu, Yuting Liu, Mengqi Liu, Pengwei Sha, Lunxiang Li, Zhenglei Yu, Zhihui Zhang, Luquan Ren
Summary: This study investigated the influence and mechanism of different addition amounts of CeO2 on the surface properties of LPBF-NiTi alloys. It was found that the addition of an appropriate amount of CeO2 effectively improved the mechanical properties, wear resistance, and corrosion resistance of LPBF-NiTi alloys. The simultaneous improvement of mechanical properties and surface functional properties greatly expanded the application prospects of NiTi-CeO2 alloys.
MATERIALS TODAY ADVANCES
(2023)
Article
Metallurgy & Metallurgical Engineering
Adilson Vitor Rodrigues, Thiago Soares Lima, Talita Almeida Vida, Crystopher Brito, Amauri Garcia, Noe Cheung
Summary: The effects of adding 5.0 wt.% Ni to an Al-6wt.%Cu alloy on solidification cooling rate, growth rate, microstructure characteristics, morphology/distribution of intermetallic compounds (IMCs), and properties were investigated. Experimental growth laws were derived relating dendritic spacings with cooling rate and growth rate. The addition of Ni in the alloy composition provided a reinforcing effect surpassing that of microstructure refinement. Samples with thin, evenly distributed IMCs formed under higher cooling rates showed the highest corrosion resistance.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Materials Science, Multidisciplinary
Lipeng Jiang, Xiufang Cui, Guo Jin, Zhimin Tian, Xin Wen, Haoliang Tian, Erbao Liu
Summary: In order to improve the performance of laser cladding coatings on magnesium alloys, a multi-step ultrasonic assisted laser remelting technology was proposed. A novel Cu 2.3 Al 1.3 Ni 1.7 SnCr 0.3 multi-principal element alloy coating (MPEAC) was prepared, and its microstructure, phase composition, corrosion and wear resistance were characterized and analyzed. The results showed that the MPEAC with ultrasonic assistance exhibited enhanced corrosion resistance and wear resistance, as well as reduced texture density.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Electrochemistry
M. Somasundaram, U. NarendraKumar
Summary: The EV31A magnesium alloy shows potential for use in aerospace and automotive applications. This study utilized an electrochemical approach to evaluate the corrosion behavior of the EV31A alloy in various electrolytic mediums, and found that the as-cast EV31A alloy exhibited superior corrosion resistance.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2023)
Article
Chemistry, Physical
J. W. Chen, C. H. Zhang, F. Q. Zhou, S. Zhang, H. T. Chen, Q. Wang
Summary: This paper successfully prepared TC4-5Cu alloy samples using SLM technology to investigate the influence of different laser energy densities. The results showed that with the decrease of laser energy density, the grain size of the samples reduced, and more low-angle grain boundaries were observed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
