The long‐term corrosion performance and adhesion properties of 7B04 aluminum alloy/anodic film/epoxy primer system in acidic NaCl solution

Zhang, Yangguang; Chen, Yueliang; Zhang, Yong; Bian, Guixue

doi:10.1002/maco.202112527

Cited by 7 publications

(1 citation statement)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this sense, the authors varied the proportion of epoxy binder [34] or optimized the proportion of pigment that will ensure the best adhesion [35]. Cross-cut [34,36] and pulloff methods [32,37] were used to evaluate the performed tests and analyze the obtained results, as two methods for testing the properties that describe adhesion. In comparison with previous research, the innovativeness of this paper can be noted and emphasized once again.…”

Section: Regression Model Adequacy Checkingmentioning

confidence: 99%

Optimization of Parameters for Protection of Materials by Primer Application

et al. 2022

View full text Add to dashboard Cite

The protective properties of coating systems usually depend on their base layer, since its characteristics and chemical composition are greatly responsible for prevention of corrosion development. Moreover, a good primer as a base coating has to provide good adhesion between the coating system and the substrate material, as well as good cohesion, i.e., coating strength. The described experiment aimed to determine the influence of input parameters (anticorrosive pigment content, conditioning time, dry film thickness) on the adhesion properties of the coating. The optimization of input parameters was achieved by the pull-off test in order to determine their maximum values. For the purpose of imitating aggressive atmosphere of service conditions, the experiment was run in a salt spray chamber, in which samples were cyclically sprayed with 5% sodium chloride (NaCl) solution for 120 h. The obtained mathematical model makes it possible to define the optimal values of the input variables for the defined values of the required property, i.e., the adhesion properties of the applied primer for certain exploitative conditions.

show abstract

Section: Regression Model Adequacy Checkingmentioning

confidence: 99%

Optimization of Parameters for Protection of Materials by Primer Application

et al. 2022

View full text Add to dashboard Cite

show abstract

Effect of structure, phase, and elemental composition of AlN, CrAlN, and ZrAlN coatings on their electrochemical behavior in 3% NaCl solution

Каменева

Kichigin

Bublik

2022

Materials & Corrosion

View full text Add to dashboard Cite

Thin coatings AlN, AlZrN, and AlCrN were deposited by pulsed magnetron sputtering. The high-speed steel Т1, structural alloy steel 5140, and structural carbon steel 1017 were used as substrates. The magnetron current, nitrogen content in the gas mixture, and bias voltage on the substrate were changed to obtain nanostructured and amorphous layers of coatings with different elemental compositions. The voltammetry and impedance spectroscopy were performed on the coated samples in 3% NaCl solution. The corrosion behavior of the coatings was characterized by the corrosion current density i corr, the polarization resistance R p (at the corrosion potential), the ratios i corr,s /i corr , and R p /R p,s , where subscript s refers to the substrate. It was shown that the coatings under study (except AlN) are electrochemically active, and the corrosion processes occur not only on the substrate in the coating discontinuity but on the coating surface as well. The coatings AlN/T1, AlZrN/5140, AlCrN/T1, and AlCrN/5140 with i corr ~10 −7 A cm −2 are found to be the most corrosionresistant in 3% NaCl. The paper discusses factors affecting the corrosion behavior of the investigated coatings.3% NaCl solution, coatings AlN, AlZrN, and AlCrN, structure and electrochemical behavior | INTRODUCTIONRecently, much attention has been paid to the development of nanostructured coatings with high physical, mechanical, and tribological properties. Such coatings include ZrMN and CrMN (M = Al and Ti) with a hardness of more than 40 GPa; they are simultaneously characterized by thermal and corrosion resistance. In recent years, coatings ZrAlN, CrAlN ZrTiN, and CrTiN with hardness 30-40 GPa are attracting the most attention due to their unique properties, including high hardness, high-temperature oxidation resistance, minimal wear, and excellent thermal stability. [1][2][3][4][5][6] The TiAlN coating exhibits inferior corrosion resistance compared to the TiN coating. Potentiodynamic polarization measurements have shown that for all single layer CrN, TiN, TiAlN coatings, and multilayer nanolayered TiAlN/CrN coatings, the corrosion potential is shifted to higher values compared to the uncoated substrate. The corrosion current density for coated samples decreases. The protective effect of multilayer TiAlN/CrN coatings is higher than that of single-coat coatings. The Nyquist and Bode plots obtained from the EIS measurements were fitted with appropriate equivalent circuits to calculate coating discontinuity resistance, charge transfer resistance, and capacitance. [7] These studies confirm that

show abstract

Dependence of protective effect of Ti_1–xAl_xN coatings in 3 wt.% NaCl solution on dissolution mechanism of their phases c‐Ti_0.5Al_0.5N, c‐AlN, and c‐TiN

Kameneva,

Bublik,

Kameneva

2024

Materials & Corrosion

View full text Add to dashboard Cite

The dissolution mechanism of phases c‐Ti0.5Al0.5N, c‐aluminium nitride (AlN), c‐TiN, and Al2Ti, and elements of the Ti1–xAlxN coatings (for x < 0.6) in 3 wt.% NaCl solution is described based on the results of X‐ray diffraction analysis, energy‐dispersive X‐ray spectroscopy, and scanning electron microscope and previous electrochemical tests. Researchers studied the protective effectiveness of Ti1–xAlxN coatings in 3 wt.% NaCl solution by analyzing the factors: composition, thickness, porosity, total energy of ground state, stresses, structure, and texture. It was first established that the additional c‐TiN phase with Rpmax and Ecormax, and secondary phase Ti0.70–0.82N formed after Al's dissolution in the main phase c‐Ti0.5Al0.5N increases the N content and prevents the Ti dissolution in the Ti1–xAlxN coatings. The phase c‐AlN with icormin reduces the dissolution rate of Al in the c‐Ti0.5Al0.5N phase. The stoichiometric c‐Ti0.5Al0.5N is the most thermodynamically stable phase. The described phase transformations in Ti1–xAlxN coatings during phases dissolution in 3 wt.% NaCl can predict the coating protective effect. A multilayer coating with layers of c‐AlN, c‐TiN, and c‐Ti0.5Al0.5N is recommended for industrial use.

show abstract

The long‐term corrosion performance and adhesion properties of 7B04 aluminum alloy/anodic film/epoxy primer system in acidic NaCl solution

Cited by 7 publications

References 33 publications

Optimization of Parameters for Protection of Materials by Primer Application

Optimization of Parameters for Protection of Materials by Primer Application

Effect of structure, phase, and elemental composition of AlN, CrAlN, and ZrAlN coatings on their electrochemical behavior in 3% NaCl solution

Dependence of protective effect of Ti_1–xAl_xN coatings in 3 wt.% NaCl solution on dissolution mechanism of their phases c‐Ti_0.5Al_0.5N, c‐AlN, and c‐TiN

Contact Info

Product

Resources

About

The long‐term corrosion performance and adhesion properties of 7B04 aluminum alloy/anodic film/epoxy primer system in acidic NaCl solution

Cited by 7 publications

References 33 publications

Optimization of Parameters for Protection of Materials by Primer Application

Optimization of Parameters for Protection of Materials by Primer Application

Effect of structure, phase, and elemental composition of AlN, CrAlN, and ZrAlN coatings on their electrochemical behavior in 3% NaCl solution

Dependence of protective effect of Ti1–xAlxN coatings in 3 wt.% NaCl solution on dissolution mechanism of their phases c‐Ti0.5Al0.5N, c‐AlN, and c‐TiN

Contact Info

Product

Resources

About

Dependence of protective effect of Ti_1–xAl_xN coatings in 3 wt.% NaCl solution on dissolution mechanism of their phases c‐Ti_0.5Al_0.5N, c‐AlN, and c‐TiN