Temperature, current density and cobalt concentration effects on electrodeposited anticorrosive cobalt-tungsten alloys using factorial experiment design and ANOVA techniques

Porto, Mariana Borges; Portela, Daniella Gonçalves; Neto, Ambrósio Florêncio de Almeida

doi:10.1080/00202967.2019.1668122

Cited by 3 publications

(2 citation statements)

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“…According to the descriptions, the polynomial equations built from the CF designs were successfully used to evaluate the individual and combined influences of the parameters, and provided robust assessments about the variables' effects as a function of the responses. The CF designs were also used by Porto et al (2019) and Lara et al (2019) to evaluate the performance of anticorrosive alloys, and to optimize the dielectric properties of a magneto-dielectric composite. According to the authors, the CF designs enabled an efficient investigation of the parameters that were used to achieve desired characteristics, and were successfully used to improve the performance of the systems.…”

Section: Complete Factorial Designsmentioning

confidence: 99%

Fundamental Concepts and Recent Applications of Factorial Statistical Designs

Mainardi

Bidóia

2022

Braz. Jour. Biom.

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Factorial designs have been increasingly used in scientific investigations and technological development. The designs, through the use of matrices with all the treatment combinations, have been capable to effectively characterize the relationships between the variables of multi-factor experiments, assess the experimental variabilities, and derive mathematical functions that represent the behavior of the responses. Factorial designs were fractionalized, which substantially reduced the number of treatments without the loss of relevant information. The addition of central and star points to the factorial arrays has given them the orthogonality and rotatability characteristics, frequently used to fit models with curvature and identify critical regions of interest. Literature reports indicated that factorial designs, also called factorial experiments, were successfully applied in different types of investigations, including in cost evaluations and time-series studies. They were capable to estimate important features of the experiments, like the individual and combined effects of factors, the magnitude of residuals, additionally to express the relationships of the variables in polynomial equations, draw response surface and contour plots, and determine optimal combinations of parameters. In this review, the fundamental aspects of the Complete, Fractional, Central Composite Rotational and Asymmetrical factorial designs were conceptualized, and recent applications of these powerful tools were described.

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Section: Complete Factorial Designsmentioning

confidence: 99%

Fundamental Concepts and Recent Applications of Factorial Statistical Designs

Mainardi

Bidóia

2022

Braz. Jour. Biom.

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“…Electrodeposition process is influenced by many parameters such as current density [29], pH [30], temperature [31], additive type [32,33] and concentration [34], etc. Moreover, due to the need for stability, using surfactants as the additive in composite electrodeposition suspension seems inevitable [35,36].…”

Section: Introductionmentioning

confidence: 99%

Investigating the hexadecylamine as a new nonionic surfactant candidate for electrodeposition of wear-resistant metal-matrix composites

Tozar

2020

Surface Engineering

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In this study, Ni-B/hBN composite coatings were galvanostatically electrodeposited on 304 L grade steel substrates with 50 mA cm −2 of current density from a modified Watt type nickel electrodeposition bath including trimethylamine-borane complex (TMAB), and hBN with the average particle size of 100 nm. The effect of the concentration of hexadecylamine (HDA) as a nonionic surfactant has been investigated. The concentration range was 0-400 ppm. HDA has a significant positive effect on mechanical, tribological and corrosion protection properties of the electrodeposited composite coatings due to its increasing effect on the hBN volume fraction in the coating. According to the results of this study, HDA may be a new nonionic surfactant alternative for metal-matrix composite electrodeposition.

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