Combating Wear by Surface Modification Techniques

Shibe, Vineet; Chawla, Vikas

doi:10.1007/978-81-322-1859-3_44

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…To prevent material degradation, a coating is typically used. Surface coating is an economical method to produce surface materials with sought-after surface characteristics, such as anti-corrosion, anti-erosion, and wear resistance [3]. Apart from preventing material degradation, coatings are also used to add aesthetics, especially in a non-reactive atmospheric condition or environment.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic coating based on silica derived from bagasse modified with vinyltriethoxysilane and copper (Cu) as antibacterial agent

Silviana

Sa’adah

Saputra

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Prevention of material degradation can be achieved through the coating. Surface coating is an economically advantageous method in producing desired characteristics and auxiliary aesthetics of surface material. Modern coating processes usually use nanomaterial technology made from silica. Silica can be taken from various sources, such as bagasse waste. Bagasse has high silica content up to 88%. Coating material from silica has good adhesion, good protective properties that allow it to withstand the diffusion of water vapor, ions, and oxygen to metal surfaces. Modified silica can be used to produce superhydrophobic surfaces. The addition of vinyl groups to silica can improve the elastic and mechanical properties without much variation in density or thermal conductivity. The addition of vinyltriethoxysilane can create uniform distribution of nanoparticles. Modification of silica can be done to procure anti-bacterial properties. Copper (Cu) is often used as a high activity anti-bacterial with a fairly affordable cost. With the supplementary anti-bacterial properties, material damages attributed to bacteria may be prevented or reduced. This review aims to provide an overview of the production of superhydrophobic coatings using different methods, analyze the characteristics of synthesized materials, and choose suitable methods for producing superhydrophobic coatings. This review proposes the fabrication of silica superhydrophobic coating with the sol-gel method modified through the addition of vinyl and Cu as an anti-bacterial. This recommendation is based on the literature study that has been carried out.

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Section: Introductionmentioning

confidence: 99%

Superhydrophobic coating based on silica derived from bagasse modified with vinyltriethoxysilane and copper (Cu) as antibacterial agent

Silviana

Sa’adah

Saputra

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Surface morphology and its chemical configuration mainly dictate the behavior of surface sensitive properties [1]. In past few decades, researchers are paying more and more importance toward the use of laser as source of microstructure refinement in order to modify the composition and microstructure of nearsurface area of the materials without even affecting or causing any type of alteration to the substrate material [2,3]. There do exist many conventional methods of surface treatment for enhancement of surface properties like carburizing, flame hardening, nitriding, carbonitriding and induction hardening which are no doubt very effective for certain applications, but they also have some limitations in their use whereas laser offers very fascinating results [4,5].As compare to the conventional methods, laser surface melting induce 15-20% increase in microhardness.…”

Section: Introductionmentioning

confidence: 99%

Rapid Solidification and Surfaces Alloying Using Continuous CO<sub>2</sub> Laser to Generate Ni-Aluminide on Steel

Akhtar

Nadeem

et al. 2021

KEM

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Rapidly solidified thin micro-alloyed surface layers are generated by laser melting of plasma thermal sprayed steel surfaces. Samples of carbon steel are plasma sprayed with fine nickel and aluminum powders. Laser surface melting generated a thin localized molten pool of metal with steep horizontal thermal gradient. The latter triggered intense vortex formation in the molten pool which thoroughly mixed the nickel and aluminum powders within the molten pool in a fraction of a second. As the sample is moved away with a predefined velocity, the cold substrate quenched the melt pool, generating rapidly solidified micro-alloyed surfaces. A 2.5 kilowatts continuous carbon dioxide laser was used for surface melting; laser power was maintained at 800 watts while the samples were moved with respect to the laser beam at linear velocities in the range of 100-200 mm/min. The technique generated metallurgical bonded novel surfaces. Depth of the laser modified layer was achieved in the range of 0.2-0.4 mm. Refined microstructures of pre-austenite grain size in the range of 4±2 µm were generated. Micro-hardness measurements of the modified layer indicate an almost three times enhancement in the hardness values; the latter are, in general indicative of mechanical strength of the material. The shape of the solid/liquid interface of the advancing molten pool determines the orientation of the growing dendrites; at higher velocities of sample translation with respect to the laser beam, these are almost parallel to the sample surface. The orientation of the dendrites, the uniformity in surface alloying (within fraction of a second) and the resulting hardness values are explained with the help of the modeled shape of the liquid metal pool. The laser processed material proved to be a flexible technique to synthesize novel surfaces for surface sensitive applications.

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“…Surface modification is a method involving all processes that are used in order to improve surface properties of engineering materials. Surface modification can be done by transforming surface microstructure or by developing a new intermetallic compound layer on a material's surface in which the process done does not affect properties of bulk material [2].…”

Section: Introductionmentioning

confidence: 99%

Melting of SiC powders preplaced duplex stainless steel using TIG welding

Maleque

Afiq

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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TIG torch welding technique is a conventional melting technique for the cladding of metallic materials. Duplex stainless steels (DSS) show decrease in performance under aggressive environment which may lead to unanticipated failure due to poor surface properties. In this research, surface modification is done by using TIG torch method where silicon carbide (SiC) particles are fused into DSS substrate in order to form a new intermetallic compound at the surface. The effect of particle size, feed rate of SiC preplacement, energy input and shielding gas flow rate on surface topography, microstructure, microstructure and hardness are investigated. Deepest melt pool (1.237 mm) is produced via TIG torch with highest energy input of 1080 J/mm. Observations of surface topography shows rippling marks which confirms that re-solidification process has taken place. Melt microstructure consist of dendritic and globular carbides precipitate as well as partially melted silicon carbides (SiC) particles. Micro hardness recorded at value ranging from 316 HV0.5 to 1277 HV0.5 which shows increment from base hardness of 260 HV 0.5kgf . The analyzed result showed that incorporation of silicon carbide particles via TIG Torch method increase the hardness of DSS.

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Combating Wear by Surface Modification Techniques

Cited by 3 publications

References 4 publications

Superhydrophobic coating based on silica derived from bagasse modified with vinyltriethoxysilane and copper (Cu) as antibacterial agent

Superhydrophobic coating based on silica derived from bagasse modified with vinyltriethoxysilane and copper (Cu) as antibacterial agent

Rapid Solidification and Surfaces Alloying Using Continuous CO<sub>2</sub> Laser to Generate Ni-Aluminide on Steel

Melting of SiC powders preplaced duplex stainless steel using TIG welding

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