Improving Surface Hardness of Mild Steel Plates by Addition of Silicon Carbide Using Gas Tungsten Arc as Heat Source

Reddy, G. Harish; Arul, Sanjivi

doi:10.4028/www.scientific.net/amm.592-594.879

Cited by 6 publications

(6 citation statements)

References 8 publications

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“…However, in the present work, substantial increases in the microhardness were recorded. Initially, this result was not entirely unexpected, as previous work with lasers and TIG employing higher energy inputs than the present work but with similar volumes of SiC powder, reported SiC particles along with iron silicides, contributing to an increased hardness [26,[28][29][30][31].…”

Section: Energy Kvsupporting

confidence: 79%

“…More recently Buytoz [28] has undertaken TIG processing of steel, studying several different SiC contents and using a range of energy inputs, some resulting in the dissolution or partial dissolution of SiC particulates. Also Reddy et al [29] used a TIG torch shielded by argon to incorporate ∼ 50 μm size SiC into mild steel. A linear increase in hardness with Si content from that of the mild steel, 160 Hv (Si 0.23%), to ∼ 400 HV (Si 1.5%) was recorded.…”

Section: Introductionmentioning

confidence: 99%

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Silicon carbide particulates incorporated into microalloyed steel surface using TIG: Microstructure and properties

Muñoz‐Escalona

Sillars

Marrocco

et al. 2020

Materials Science and Technology

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Surface metal matrix composites have been developed to enhance properties such as erosion, wear and corrosion of alloys. In this study, ~5 µm or ~75 µm SiC particulates were preplaced on a microalloyed steel. Single track surface zones were melted by a tungsten inert gas torch, and the effect of two heat inputs, 420Jmm -1 and 840 Jmm -1 ,compared. The results showed that the samples melted using 420Jmm -1 were crack-free. Pin-on-disk wear testing under dry sliding conditions were conducted. The effects of load and sliding velocity were used to characterise the performance of the crack-free samples. Microstructural and X-ray diffraction studies of the surface showed that the SiC had dissolved, and that martensite, was the main phase influencing the hardness.

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Section: Energy Kvsupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Silicon carbide particulates incorporated into microalloyed steel surface using TIG: Microstructure and properties

Muñoz‐Escalona

Sillars

Marrocco

et al. 2020

Materials Science and Technology

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“…The SiC dissociated, and precipitated as Fe 2 Si, raising the hardness from 190HV of the mild steel substrate to ~600HV at the surface. The incorporation of ~50µm size SiC particles into mild steel, by the use of TIG heating, undertaken by Reddy et al [17], increased the surface hardness to ~400HV. A linear increase in hardness with Si content, from the mild steel, 160Hv (Si 0.23%), to ~400HV (Si 1.5%) was recorded.…”

Section: Introductionmentioning

confidence: 99%

Effect of silicon carbide particle size on microstructure and properties of a coating layer on steel produced by TIG technique

Muñoz‐Escalona

Mridha

Baker

2016

Advances in Materials and Processing Technologies

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Surface engineering is essential to prolong life of engineering components subject to deterioration in service from wear, erosion or corrosion, separately or in combination. This is possible by, for example, incorporating ceramic particles into a molten substrate surface, which may result in the partial or complete dissolution of the particles, and precipitation of a new phase, giving enhanced surface protection. Here, a single track surface zone of a micro-alloyed steel, was preplaced with a layer of SiC particles, with 1 or 75 µm in size, melted at a constant heat input, with a tungsten inert gas (TIG) torch, using argon as shielding gas. The aim was to compare the melted track without SiC particles and when using SiC particles on the generated temperature, microstructure, melt dimension and hardness of the re-solidified surfaces. Previous work has shown that microstructural changes occur along the track length due to preheating of the un-melted surface ahead of the molten zone. This effect was explored by inserting thermocouples along the 300mm length of steel. By optimizing the process parameters, a resolidified melt layer free of porosity has been achieved with 75 µm size SiC particles. This melt reached a maximum hardness of 750 HV.

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“…The hardness increment results from SiC reinforcing particles whose precipitation strengthens the coating layer [66]. Reddy et al [67] identified that with increasing the amount of micron size SiC as a coating material, the micro-hardness of the coated surface was increased upto 147% of as received mild steel due to dispersion hardening. A similar investigation had been done to develop a coating layer of SiC on SAE 1020 carbon steel, which enhanced microhardness value in the range of 744-1135 HV.…”

Section: Sic As Coating Materialsmentioning

confidence: 99%

A review on TIG cladding of engineering material for improving their surface property

Biswas

Sahoo

2023

Surf. Topogr.: Metrol. Prop.

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Different components used in industries like power plant, petrochemical, automobile are subjected to severe wear and corrosion due to high temperature and pressure environments. Therefore, it is necessary to improve those components' wear and corrosion resistance properties. Different processes like laser cladding, CVD, PVD, and thermal spraying are widely used for upgrading surface properties of material. In recent days, it has been found that many researchers investigated the performance of tungsten inert gas (TIG) welding for cladding of superior material like ceramics, metal etc. on different substrate materials. TIG cladding can fulfil the requirements of industries by developing a quality cladded layer with low cost and high productivity. This research paper has made an effort to compile the literature related to TIG cladding process for improving substrate properties. It has been observed that the superior materials like titanium carbide(TiC), silicon carbide(SiC), tungsten carbide(WC), cobalt-based alloys, and nickel-based alloys have been successfully cladded using TIG welding process. Researchers have also observed adequate improvement in properties like microhardness and wear resistance of different grades of steel substrate material, like 304, 316 stainless steel, 1010, and 1020 low-carbon steel. The process is also successfully utilized for cladding of superior material on nonferrous metals like Al, Ti alloy. The TIG clad quality and performance rely on different process parameters like current, scan speed, and shielding gas flow rate and also the properties of coating and substrate material.

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Improving Surface Hardness of Mild Steel Plates by Addition of Silicon Carbide Using Gas Tungsten Arc as Heat Source

Cited by 6 publications

References 8 publications

Silicon carbide particulates incorporated into microalloyed steel surface using TIG: Microstructure and properties

Silicon carbide particulates incorporated into microalloyed steel surface using TIG: Microstructure and properties

Effect of silicon carbide particle size on microstructure and properties of a coating layer on steel produced by TIG technique

A review on TIG cladding of engineering material for improving their surface property

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