Static wetting characteristics of micro-textured stainless steel surfaces under uniaxial loading condition

Anand, A. Vivek; Arumugam, V.; Kannan, R.

doi:10.1504/ijsurfse.2017.10005752

Cited by 2 publications

(6 citation statements)

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“…It is also seen from the figure that with the increase in WR, the contact angle increases until WR is 0.4, after which a slight decrease in contact angle is observed. Such a behavior has been reported earlier in patterned surfaces (Anand et al, 2017;Rahman, Note: The ridge width and channel width of the micro-patterned steel surfaces were measured from the images taken using an optical profilometer Figure 5 Images of water droplets on test samples, namely the flat surface and GS 1 to GS 4 micro-patterned steel surfaces, in the direction 2013). To note, the contact diameter of a water droplet is inversely related to its contact angle (Anand et al, 2017) and is evident for the micro-patterned steel surfaces in this work (Table II).…”

Section: Wetting Characteristicssupporting

confidence: 65%

“…The polished samples were then thoroughly washed with acetone and distilled water. Patterns were generated on the surfaces of the test samples in the form of unidirectional microgrooves, by chemical etching (Anand et al, 2017). The micro-patterns were prepared by PCM Crafts Pvt Ltd, Bengaluru, India.…”

Section: Methodsmentioning

confidence: 99%

“…The depth of the channel is about 58 mm at its centre ratio (WR). The micro-patterned steel surfaces are hydrophobic (u \, u P > 90°) because of heterogeneous/ composite wetting [Cassie-Baxter state, water droplets sit on top of the ridges with air trapped inside the channels (Ruiz de Lara et al, 2016;Anand et al, 2017)]. It is observed that the contact angles of the micro-patterned steel surfaces (u \, u P ) are significantly higher than that of the flat surface.…”

Section: Wetting Characteristicsmentioning

confidence: 99%

“…Wetting is a surface phenomenon that depends on contact area between surfaces and water droplets (Ruiz de Lara et al, 2016;Anand et al, 2017) and as a consequence variation in WR results in the variation of contact angle value. In the present work (Figure 6), among the micro-patterned steel surfaces (WR range: 0.19 to 0.83), the sample GS 2 with the WR of 0.4 shows the highest contact angle values.…”

Section: Wetting Characteristicsmentioning

confidence: 99%

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Innovative approach for suppressing corrosion of SS304 steel in saline water environment

Anand¹,

Arumugam

Jayalakshmi³

et al. 2018

ACMM

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Purpose The failure of structures and components made of SS304 steel because of corrosion in the presence of saline water environment is still an unsolved issue across the globe. Conventionally, coatings and inhibitors are used to mitigate corrosion. The purpose of this study is to propose a novel method to tackle corrosion by means of micro-patterning on the surface and to explore the relation between surface morphology, corrosion and wetting nature of micro-patterned SS304 Steel. Design/methodology/approach Groove-shaped micro-patterns were created on SS304 steel surface with varying ridge and channel widths. Wettability studies conducted on flat and micro-patterned steel surfaces using high speed camera. Corrosion tests carried out in saline water using an electrochemical test set-up to quantify the performance of micro-patterned surface over flat surface and scanning electron microscopic analysis to visualize the severity of corrosion on the surfaces of SS304 steel. Findings Wettability studies showed that the micro-patterned steel surfaces were hydrophobic. Corrosion rates of the micro-patterned steel surfaces were lower by more than an order of magnitude compared to that of the flat steel surface. Scanning electron microscopic analysis revealed that the micro-patterned steel surfaces had less surface damage compared to the flat surface. Originality/value The author shows that the remarkable corrosion resistance shown by the micro-patterned steel surfaces is attributed to their hydrophobicity, which reduced the contact between the surfaces and the corrosive liquid media. Results from the investigation indicate that micro-patterning of SS304 steel surfaces is an effective route to decrease corrosion.

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Section: Wetting Characteristicssupporting

confidence: 65%

Section: Methodsmentioning

confidence: 99%

Section: Wetting Characteristicsmentioning

confidence: 99%

Section: Wetting Characteristicsmentioning

confidence: 99%

See 2 more Smart Citations

Innovative approach for suppressing corrosion of SS304 steel in saline water environment

Anand¹,

Arumugam

Jayalakshmi³

et al. 2018

ACMM

View full text Add to dashboard Cite

show abstract

“…The image of the micro groove patterns on carbon plate was captured using 3D optical profilometer (WYKO NT 1100) [18]. The geometrical parameters like ridge width, channel width and ridge height were extracted qualitatively from the captured image with the help of Veeco software.…”

Section: B Geometrical Characterization and Wettability Measurementmentioning

confidence: 99%

Implementing Micropatterned Surface for Drag Reduction in UAV

Anand¹,

Goud²,

Sahana³

et al. 2019

IJRTE

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The Aerodynamics of the Unmanned Aerial Vehicle plays a vital role in determining its performance. The reduction in drag helps the UAV to augment its flight time in terms of range as well as endurance. In our work an attempt was made to reduce the drag by means of changing its surface morphology in micro level without changing the entire shape and size of the UAV. The patterned surface morphology in the form of grooves and pillars were introduced on the surface of UAV. The wettability and aerodynamic parameters were quantitatively measured on the target micro patterned surface and the relation between them was explored in this work. The optimized size and shape of the micro patterns which supports to reduce drag in UAV was found experimentally in this work.

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Static wetting characteristics of micro-textured stainless steel surfaces under uniaxial loading condition

Cited by 2 publications

References 0 publications

Innovative approach for suppressing corrosion of SS304 steel in saline water environment

Innovative approach for suppressing corrosion of SS304 steel in saline water environment

Implementing Micropatterned Surface for Drag Reduction in UAV

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