Effect of surface modification on microstructure, hardness and wear rate of steels with 0.2%, 0.4% and 1.1 Wt%C by the addition of Titanium using Gas Tungsten Arc

Mithun, C.M.; Saravanan, R.

doi:10.1016/j.matpr.2017.11.431

Cited by 7 publications

(4 citation statements)

References 14 publications

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“…The hardness was found to be improved on the heat treated and modified area [10]. The Fe18Cr8Ni steel alloyed with tungsten under nitrogen atmosphere has improved the hardness and wear resistance due to the formation of Nitrides and the dispersion strengthening when alloying tungsten [11]. The effect of titanium as alloying element to the surface on 0.2 wt.…”

Section: Introductionmentioning

confidence: 98%

Microstructure, Hardness and Corrosion Resistance of Surface Modified Ni - Hard 4 Cast Iron with Nitrogen using Gas Tungsten Arc

A¹,

Krishnakumar²,

Ramachandran³

2019

IJRTE

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The change in microstructure, hardness and corrosion rate of Ni-Hard 4 cast iron were studied after surface modification with Nitrogen mixed the Argon shielding environment. The microstructure of the modified layer was grains with the presence of nitrogen, observed under the optical microscope. An average of 1.37wt% of Nitrogen was observed in the modified layer during EDAX analysis. The presence of Nitrogen in the modified layer has formed FeN, Ni3N and Cr2N phases. The formation of nitride phases were confirmed during XRD spectral analysis. The hardness of the modified layer was taken along the depth direction. The hardness of the modified layer was improved from 578HV of the substrate to 1735HV of the modified layer. The electrochemical polarization test was conducted at a 3.5wt. % saline (NaCl) solution in both the substrate and the modified layer. The modified layer forms a protective layer over the surface and reduced the corrosion rate than the substrate

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Section: Introductionmentioning

confidence: 98%

Microstructure, Hardness and Corrosion Resistance of Surface Modified Ni - Hard 4 Cast Iron with Nitrogen using Gas Tungsten Arc

A¹,

Krishnakumar²,

Ramachandran³

2019

IJRTE

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“…There are some drawbacks of GTA coating process, such as due to high heat generation, thin coating cannot be deposited using GTA cladding, and some residual stress develops due to very high temperature and high solidification rate. Ignoring these drawbacks, it has numerous remarkable features, such as its refined microstructure [9], low dilution rate [10], and strong metallurgical bonding between the substrate and the coating [11]. Therefore, GTA cladding has been used to fabricate a thick and hard layer on the surface, and to improve surface properties.…”

Section: Introductionmentioning

confidence: 99%

Tribological behaviour of TiB₂ ceramic based composite coating deposited on stainless steel AISI 304 by gas tungsten arc (GTA) cladding process

Kumar¹,

Das²

2022

Surf. Topogr.: Metrol. Prop.

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In this study, Titanium (Ti)-Titanium diboride (TiB2) metal matrix composite (MMC) cladding layers were fabricated on an AISI 304 stainless steel substrate by the gas tungsten arc (GTA) cladding process. The composite cladding layer was produced using different powder mixtures: 85wt.% TiB2-15wt.% Ti, 75wt.% TiB2-25wt.% Ti, and 65wt.% TiB2 -35wt.% Ti. During cladding, the GTA process currents were used in the range of 70A to 90 A with 10A interval differences and the scan speed in the range of 1.1 mm/sec to 1.9 mm/sec with 0.4 mm/sec interval differences. All samples were investigated for mechanical properties, microstructure, and phase analysis by Vickers microhardness, scanning electron microscopy (SEM), Energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD) respectively. The X-ray diffraction (XRD) findings indicate that the composite coatings consist of TiB2, TiB, Ti, Fe3C, B4C, and NiTi phases. The presence of elements B, C, Ti, Cr, Mn, Fe, and Ni in the coating was confirmed by X-ray energy dispersive spectroscopy (EDX). The maximum microhardness value of the composite coating was enhanced in the range of 1639 HV0.1 to 3781 HV0.1, whereas the microhardness of the AISI 304 stainless steel substrate was 194 HV0.1. The average wear rate of the coated samples was determined in the range of 11.09×10-9 g/N-m to 27.63×10-9 g/N-m, whereas the average wear rate of the AISI 304 steel substrate was 88.414×10-9 g/N-m. It can be concluded that the maximum micro-hardness of the composite coating increased by 9-19 times than that of the nominal substrate (AISI 304 stainless steel). Also, the wear resistance of the composite coating enhanced by 8 times as compared to AISI 304 steel substrate. It is demonstrated in this study that the processing current, TiB2 content, and scanning speed have significant effect on the microstructure, mechanical, and tribological features of the cladding layers .

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“…Various surface coating techniques are used to reduce wear on machine elements. Many researchers have used methods such as gas tungsten arc welding (GTAW) (Mithun, Sellamuthu & Saravanan, 2018;Chang, Chen, & Wu, 2010;Kumar, Saravanan, Sellamuthu & Narayanan, 2018;Nair, Sellamuthu & Saravanan, 2018;Shanmugasundaram, Arul & Sellamuthu, 2018;Amirsadeghi & Sohi, 2008;Ya-long et al, 2018;Dalmis, Teker & Yilmaz, 2018), manual metal arc welding (MMAW) (Jankauskas et al, 2015;Selvi, Sankaran & Srivatsavan, 2008;Kang, Singh & Cheema, 2017), laser cladding method (Bartkowski & Bartkowska, 2017;Kwok, Cheng & Man, 2000;Yang et al, 2020), thermal spray coating (Kang, Grewal, Jain & Kang, 2012) to reduce wear on machine elements. Among these methods, the GTAW method stands out because of its easy application and cheapness (Shanmugasundaram, Arul & Sellamuthu, 2018).…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of PLC Based Special Purpose Machine for Surface Coating

CAN¹,

DALMIŞ²,

Dalmiş³

2022

European Journal of Science and Technology

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To improve the quality and efficiency of surface coating with the GTAW (Gas Tungsten Arc Welding) method a semi-automatic welding machine was designed based on PLC (Programmable Logic Controller) control. The control program using ladder logic can accomplish system management and control functions. This system could control welding travel speed up to 560 mm/min, measure and saves the current status of the surface temperature at the welding zone via infrared thermometer up to 1600 °C in real-time, has complete automatic fault diagnosis, modify the welding travel speed and save the inputted welding parameters. To evaluate the performance of the designed welding machine, several experiments have been conducted. Optical microscope (OM) and scanning electron microscope (SEM) methods were used for microstructure examinations. In addition, mechanical tests were carried out with the microhardness method. An average of 377.5 HV0.2 microhardness was obtained from the surface of SAE (AISI) 1040 materials used in the experiments to a depth of 1 mm via the coating powders containing 64 wt% FeCrC + 16 wt% FeTi and 20 wt% Ni. The results from the experiments have shown that the designed PLC-based semi-automatic welding machine could be effective in determining the optimum conditions for surface coating and different welding processes.

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Effect of surface modification on microstructure, hardness and wear rate of steels with 0.2%, 0.4% and 1.1 Wt%C by the addition of Titanium using Gas Tungsten Arc

Cited by 7 publications

References 14 publications

Microstructure, Hardness and Corrosion Resistance of Surface Modified Ni - Hard 4 Cast Iron with Nitrogen using Gas Tungsten Arc

Microstructure, Hardness and Corrosion Resistance of Surface Modified Ni - Hard 4 Cast Iron with Nitrogen using Gas Tungsten Arc

Tribological behaviour of TiB₂ ceramic based composite coating deposited on stainless steel AISI 304 by gas tungsten arc (GTA) cladding process

Design and Implementation of PLC Based Special Purpose Machine for Surface Coating

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Effect of surface modification on microstructure, hardness and wear rate of steels with 0.2%, 0.4% and 1.1 Wt%C by the addition of Titanium using Gas Tungsten Arc

Cited by 7 publications

References 14 publications

Microstructure, Hardness and Corrosion Resistance of Surface Modified Ni - Hard 4 Cast Iron with Nitrogen using Gas Tungsten Arc

Microstructure, Hardness and Corrosion Resistance of Surface Modified Ni - Hard 4 Cast Iron with Nitrogen using Gas Tungsten Arc

Tribological behaviour of TiB2 ceramic based composite coating deposited on stainless steel AISI 304 by gas tungsten arc (GTA) cladding process

Design and Implementation of PLC Based Special Purpose Machine for Surface Coating

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Tribological behaviour of TiB₂ ceramic based composite coating deposited on stainless steel AISI 304 by gas tungsten arc (GTA) cladding process