Results 11 to 20 of about 64,464 (310)

A high-performance Ti-Zr Based Chromium-Free Conversion Coating on 2024 Aluminum Alloy

International Journal of Electrochemical Science, 2016
In order to further improve the corrosion resistance of the chromium-free Ti-Zr conversion coating on 2024 aluminum alloy (AA2024), a novel Ti-Zr based conversion coating on AA2024 is successfully prepared by introducing the cathodic inhibitor of ...
Q.P. Li, Z.Q. Yan, Q. Xu, B. Zhang, S. Sun, J.G. Liu, C.W. Yan   +6 more
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Conversion Coating Used in Bipolar Plates in PEMFCs

International Journal of Electrochemical Science, 2014
In this work, a Zr-Cr oxide conversion coating was formed by a conversion process to improve the corrosion resistance of 5052 aluminum alloy BBPs. The main contents of the conversion coating included Zr, Cr and Si oxide, and the thickness of conversion ...
Te-Yuan Chiang, Ay-Su, Lin-Chang Tsai, Hung-Hua Sheu, Chen-En Lu   +4 more
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CORROSION BEHAVIOR OF A CONVERSION COATING BASED ON ZIRCONIUM AND COLORANTS ON GALVANIZED STEEL BY ELECTRODEPOSITION [PDF]

Tecnologia em Metalurgia, Materiais e Mineração, 2015
Corrosion performance of Zr-based coating on substrates obtained by zinc electrodeposition in an alkaline bath is compared to chromate coatings (Cr III and Cr VI).
Josiane Soares Costa, Raquel Dei Agnoli, Jane Zoppas Ferreira   +2 more
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Effect of Temperature on Corrosion Resistance of Layered Double Hydroxides Conversion Coatings on Magnesium Alloys Based on a Closed-Cycle System

Metals, 2021
The effect of temperature on the corrosion resistance of layered double hydroxide (LDH) conversion coatings on AZ91D magnesium alloy, based on a closed-cycle system, was investigated.
Xiaochen Zhang, Zhijuan Yin, Bateer Buhe, Jiajie Wang, Lin Mao, Bin Liu, Peng Zhou, Yang Zhao, Tao Zhang, Fuhui Wang   +9 more
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Phosphate Conversion Coating – A Short Review [PDF]

Archives of Metallurgy and Materials, 2023
Phosphating is the process of depositing, by conversion, a layer of insoluble phosphate compounds, on the metal’s surface. Although phosphate coatings have been studied since the early nineteenth century, they are not only still being studied, but are an
D.-P. Burduhos-Nergis, A.V. Sandu, D.D. Burduhos-Nergis, P. Vizureanu, C. Bejinariu   +4 more
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Effect of surface nanocrystallization on corrosion behaviour of coated steel in chloride solution

International Journal of Electrochemical Science, 2018
A nanocrystalline (NC) layer was fabricated on the surface of the low-alloy steel 15CrMo using high-energy shot peening. Two kinds of conversion coatings including the chemical conversion coating and electrochemical conversion coating were separately ...
Liuyan Zhang, Shuimei Yang, Huishu Wu, Xiaohua Jie, Xiaoye Huang, Xiujin Wang   +5 more
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Corrosion rates of green novel hybrid conversion coating on aluminium 6061

Results in Engineering, 2020
The use of chromate conversion coatings have been limited by several protocols as a result of their carcinogenicity and toxicity towards humans and the environment. Searches are ongoing for chromate replacement in coating baths and processes.
M. Oki, A.A. Adediran, P.P. Ikubanni, O.S. Adesina, A.A. Adeleke, S.A. Akintola, F. Edoziuno, A. Aleem   +7 more
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Fabrication and Characterization of Stearic Acid Modified Ce-V Conversion Coating on Magnesium Alloy

Cailiao gongcheng, 2017
The Ce-V conversion coating on magnesium alloy was modified by stearic acid (SA). Scanning electronic microscope (SEM), contact angle measurement, energy dispersive X-ray spectroscopy (EDS) and Fourier transform infrared spectrometer (FTIR) were adopted ...
JIANG Xiao, GUO Rui-guang, TANG Chang-bin   +2 more
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Electrochemical Behavior During the Zirconium Conversion Coating Formation on AISI 1006 Steel [PDF]

Materials Research, 2019
This study investigated a conversion coating based on hexafluorozirconic acid solution on cold-rolled (AISI 1006) steel sheets, in situ, at different pH values and immersion times.
Juliana dos Anjos-Moraes, Alexandre Giacobbo, Rita Sánchez-Tovar, Rafael Leiva García, Jose García-Antón, Jane Zoppas Ferreira   +5 more
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Electrochemical corrosion resistance of aluminum alloy 6101 with cerium-based coatings in an alkaline environment

Frontiers in Chemistry, 2022
Chromium-free materials as eco-friendly coatings with higher corrosion resistance are crucial in various industrial processes. Herein, we report the deposition of cerium-based conversion, a chromium-free, eco-friendly chemical conversion coating for ...
Ahsan Riaz Khan, Ahsan Riaz Khan, Ahsan Riaz Khan, Hai-Jun Zhang, Hai-Jun Zhang, Zhang Jun, Zhang Jun, Sayed M Eldin, Norah Saleem Alsaiari, Khadijah Mohammedsaleh Katubi   +9 more
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