Effects of Environmental Conditions on Degradation of Automotive Coatings

Mohseni, Mohsen; Ramezanzadeh, Bahram; Yari, H.

doi:10.5772/12867

Cited by 9 publications

(3 citation statements)

References 48 publications

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“…As mentioned before, coatings are very essential for any of the automotive part as coating is a barrier in between environment and substrate. Coating protects the substrate material from several aggressive chemical and mechanical degradations [3] and it's also imparting color and visual appeal to the substrate [54]. Coating enhances the substrate hardness, scratch resistance, control friction, corrosion, erosion and oxidation resistance, low coefficient friction, increases stiffness and fatigue, it improves thermal insulation, and life of substrate also increased [24].…”

Section: Coating and Its Importancementioning

confidence: 99%

Mechanical and Morphological Characteristics of Nickel, Chromium and Nitride-Based Coatings Formed via Electrodeposition and Magnetron Sputtering Techniques on Mild Steel. An Overview

Bhatti,

Chandio,

et al. 2023

austinchemeng

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Mild Steel (MS) is considered as the most widely employed engineering material, which is primarily being used in an automotive industry. Several parts including fuel system, outer and body panel, trims, chassis exhaust, along with many other parts are made up of MS. The driving force behind versatility of MS is its unique set of characteristics. However, the issues arise when its tribological degradation occur that creating problems in service conditions. The best solution for this problem is to coat the mild steel with transition metal-based nitride coatings such as, Ni and Cr. Insufficient Literature is available related to the mechanical performance of single/gradient layer (Ni, Cr) N ternary coating on mild steel substrate. Current review focuses on the characteristics of the coatings that are deposited through two different deposition techniques; electrodeposition and magnetron sputtering. The studied coatings materials are nitrides of nickel and chromium, deposited in several layers. Furthermore, the structural and mechanical properties of these coatings have been compared.

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Section: Coating and Its Importancementioning

confidence: 99%

Mechanical and Morphological Characteristics of Nickel, Chromium and Nitride-Based Coatings Formed via Electrodeposition and Magnetron Sputtering Techniques on Mild Steel. An Overview

Bhatti,

Chandio,

et al. 2023

austinchemeng

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“…Therefore, protection against UV is essential for maintaining the quality of the paint over time. To shield car paint from UV exposure, a clear coat of paint is applied, which helps block UV light from reaching the deeper layers [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Testing of the Light Transmittance of Industrial Varnishes

Żyłka,

Potera

2024

Adv. Sci. Technol. Res. J.

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The article presents the study of the light transmittance of a colorless car varnish. The varnish was tested at different temperatures for UV light transmission and the ability to protect car paint pigments from degradation. These tests make it possible to assess the durability and quality of the varnish. A comparison of light transmittance through glass, quartz glass and solar glass was made. It has been noted that the curing temperature of the varnish has an impact on its transmission (up to a few percent). A similar effect has been observed in the case of varnish with a hardener.

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“…Although most polymer materials are hydrophobic and thus not affected by water and relative humidity, some that have pH-sensitive chemical linkages in their structure can be hydrolysed by relative humidity or water. Acrylic/Melamine as the typical structure used in automotive clearcoats is vulnerable to water and highly susceptible to degrade hydrolytically and yet another is the diverse class of organic coatings[40].…”

mentioning

confidence: 99%

The Effect of Detergents on the Appearance of Automotive Clearcoat Systems Studied in an Outdoor Weathering Test

Alsoufi¹,

Bawazeer²,

Alhazmi³

et al. 2017

MSA

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The ability to predict the weathering performance of the clearcoat system over a short period of time is essential for the design and development of coating production. Thus, the primary objective of the present study is to investigate whether it is possible to predict the weathering performance of an automotive paint system through determination of surface roughness, R a , and microhardness before and after various weathering exposure times (0, 24, 168, 336, 504, 672 hours) and when employing two different detergent materials (house-use detergent and car wash detergent). The data were analysed using a pair-sample t-Test, with 0.05 level of significance. It was found that the total net of degradation in the clearcoat level during the first 24 hours was R a ≈ 30.3 nm (for surface roughness) and 1.358 HV (for the µ-hardness) when using the house-use detergent. In contrast, it was found to be R a ≈ 4.6 nm (for surface roughness) and 1.133 HV (for µ-hardness) when using the car wash detergent. Also, increased time of weathering (up to 672 hours) increases the R a and µ-hardness values. It can therefore be concluded that the effect of house-use detergent was more severe than that of car wash detergent on the clearcoat system.

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Effects of Environmental Conditions on Degradation of Automotive Coatings

Cited by 9 publications

References 48 publications

Mechanical and Morphological Characteristics of Nickel, Chromium and Nitride-Based Coatings Formed via Electrodeposition and Magnetron Sputtering Techniques on Mild Steel. An Overview

Mechanical and Morphological Characteristics of Nickel, Chromium and Nitride-Based Coatings Formed via Electrodeposition and Magnetron Sputtering Techniques on Mild Steel. An Overview

Testing of the Light Transmittance of Industrial Varnishes

The Effect of Detergents on the Appearance of Automotive Clearcoat Systems Studied in an Outdoor Weathering Test

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