The effect of surface roughness on corrosion resistance of machined and epoxy coated steel

Hagen, Catalina H. Musinoi; Hognestad, Asbjørn; Knudsen., Ole; Sørby, Knut

doi:10.1016/j.porgcoat.2019.01.030

Cited by 57 publications

(18 citation statements)

References 43 publications

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“…Hydrogen gas adversely affects the properties of coatings. However, hydrogen formation and related negative effects can be prevented by the use of suitable agents such as boric acid [21,22]. The process parameters are flexible so that they can be adjusted according to the desired hardness and coating thickness.…”

Section: Electrochemical Coatingsmentioning

confidence: 99%

Aşınma ve Korozyona Dirençli Çelik Yüzeyler Oluşturmak Için Kullanılan Yüzey İşlemleri Üzerine Bir Derleme

et al. 2024

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Çelik alaşımları, akma ve çekme mukavemeti, iyi ısıl iletkenlik, işlenebilirlik, şekillendirilebilirlik, süneklik, manyetik özellikler ve geri dönüştürülebilirlik gibi üstün özelliklerinden dolayı en çok kullanılan mühendislik malzemesi sınıflarından biridir. Avantajlarına ek olarak, çelik, kullanımını sınırlayan iki ana faktörden muzdariptir: aşınma ve korozyon. Aşınma ve korozyon, ayrı ayrı veya bir arada, çeliklerde malzeme kaybına neden olarak endüstriyel üretimde maliyetlerin artmasına neden olur. Ancak uygun yüzey işlemleri ile çeliklerin aşınması ve korozyonu önlenebilir veya minimumda tutulabilir. Uygun yöntemlerle sağlanan korozyon ve aşınma direnci, maliyetleri düşürme potansiyeline sahiptir ve endüstriyel tasarımcılara geniş bir malzeme seçimi yelpazesi sunar. Bu çalışmada çelikler hakkında kısaca bilgi verilmiş ardından çelik malzemelerin aşınma ve korozyona karşı önleyici uygulamaları incelenmiştir. Sıcak daldırma kaplamalar, elektrokimyasal kaplamalar, akımsız kaplamalar, termokimyasal yüzey işlemleri, sol-jel, termal sprey kaplamalar, fiziksel buhar biriktirme, kimyasal buhar biriktirme, gibi yüzey işlemleri ile yüzey işlemlerinin çeliklerin aşınma ve korozyon direnci üzerindeki etkileri hakkında tanımlamalar yapılmıştır. Ayrıca proses parametrelerinin ve yüzey işleminden sonra uygulanan ısıl işlem gibi ardıl işlemlerin çeliklerin korozyon ve aşınma davranışı üzerindeki etkileri sunulmaktadır.

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Section: Electrochemical Coatingsmentioning

confidence: 99%

Aşınma ve Korozyona Dirençli Çelik Yüzeyler Oluşturmak Için Kullanılan Yüzey İşlemleri Üzerine Bir Derleme

et al. 2024

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“…These requirements include surface roughness, which is of key importance for the durability and reliability of manufactured parts [ 4 , 5 ]. It affects the coefficient of friction [ 6 , 7 , 8 ], fatigue strength [ 9 , 10 ], wear resistance [ 11 , 12 , 13 ], corrosion [ 14 , 15 ] and creep resistance [ 16 , 17 ]. These properties are extremely important for components operating in very difficult conditions, i.e., working under heavy loads, at high temperatures and pressures, and in an aggressive environment.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Surface Topography after Milling with a Lens-Shaped End-Mill, Considering Runout

et al. 2022

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The paper presents a method of forecasting the product surface topography after five-axis machining with a lens-shaped end-mill. Surface roughness is one of the key parameters considered when assessing the effectiveness of the machining process, especially in the aviation, automotive, tooling and medical equipment industries. The developed method, the first published, presented in the paper is based on the analytical equations of the trajectory of the cutting edge motion, on the basis of which the cutter action surface is generated. The developed model takes into account: cutting depth, cutting width, feed, lead angle and radial runout. Experimental studies were conducted using three different materials: 40HM steel, Al7035 aluminum alloy and Ti Grade 5 titanium alloy. Various values of the cutting width parameters and different feeds were used in the tests. Based on the results of the experimental tests, an empirical model (response surface model) was determined and was then used to verify the simulation model. The simulation results and the results of experimental tests were compared and conclusions were drawn regarding the developed models. The developed models supported by numerical simulation can be used to approximately estimate the influence of the width of cut br and feed ft on selected height characteristics Sa and Sz^ of the geometric structure of the surface (GSS) after machining with a lens-shaped end-mill in terms of the process parameters adopted in the tests. It was found that the influence of the ft on the Sa and Sz^ is greater for small values of br. The effect of br is greater with lower ft values. The cutting width br has the greatest influence on Sa and Sz^, and ft and the interaction of these parameters has the least influence.

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“…The durability and protection performance of paint on bridges and steel structures depend on the anchor pattern, corrosion products, and degree of residual salts. The surface roughness formed by surface treatments can increase the adhesion performance and corrosion resistance of paint [2][3][4]. However, many cases have been reported wherein moisture penetrates the coating owing to osmotic pressure and early corrosion occurs under the coating when salt remains on the steel surface because of insufficient surface treatment before painting [4].…”

Section: Introductionmentioning

confidence: 99%

Surface Characteristics and Corrosion Behavior of Carbon Steel Treated by Abrasive Blasting

Kim

Kainuma

Yang

2021

Metals

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The effects of blasting with metallic steel grit and non-metallic alumina grit on steel surface characteristics were evaluated. These abrasives are generally used at construction sites and in vacuum blasting. Milled steel specimens were used to investigate the effect of the blasting conditions on surface properties. The effect of difference in surface properties on the adhesion strength and corrosion behavior were measured through adhesion tests, polarization curves, and electrochemical impedance spectroscopy. The limitations of blasting were evaluated using corroded steel specimens, as were the effects of corrosion products, salts, and abrasive material remaining on the blasted steel surface on the adhesion and corrosion resistance of paint. Steel grit more effectively increased the surface roughness than alumina grit; however, with both abrasive materials, the roughness increased with the blast projection angle. However, in the case of alumina grit, some abrasive material remained on the surface; thus, the actual roughness not including the residual abrasive material was more complex and greater than that of the sample blasted with steel grit. According to the adhesion strength test of painted and unpainted specimens, the adhesion force improved with increasing surface roughness and residual abrasive materials. Further, surface roughness was linearly correlated with the adhesion strength of unpainted specimens for both abrasive materials with blasting, and the adhesion strength force with alumina grit was approximately 1.4 times higher than that with steel grit, suggesting that increased roughness and residual abrasive material could benefit adhesion. According to the electrochemical test results, lower roughness and increased residual abrasive material owing to alumina grit on the steel surface enhanced the surface corrosion resistance, confirming the benefit of residual materials. Grinding left behind corrosion products and salts under the steel, resulting in the recurrence of rusting. However, the residue from blasting with alumina suppressed corrosion, thus improving the adhesion and corrosion resistance of the paint.

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The effect of surface roughness on corrosion resistance of machined and epoxy coated steel

Cited by 57 publications

References 43 publications

Aşınma ve Korozyona Dirençli Çelik Yüzeyler Oluşturmak Için Kullanılan Yüzey İşlemleri Üzerine Bir Derleme

Aşınma ve Korozyona Dirençli Çelik Yüzeyler Oluşturmak Için Kullanılan Yüzey İşlemleri Üzerine Bir Derleme

Modeling of Surface Topography after Milling with a Lens-Shaped End-Mill, Considering Runout

Surface Characteristics and Corrosion Behavior of Carbon Steel Treated by Abrasive Blasting

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