Swapan Kumar Karak

National Institute of Technology Rourkela

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Anshuman Patra

National Institute of Technology Rourkela

Mithilesh Kumar

National Institute of Technology Rourkela

Jyotsna Dutta Majumdar

Indian Institute of Technology Kharagpur

Santosh Kumar Sahoo

National Institute of Technology Rourkela

Ravi R Saxena

Indira Gandhi Agricultural University

I. Manna

Indian Institute of Technology Kharagpur

Mohan Nuthalapati

Rajiv Gandhi University of Knowledge Technologies

Anand Babu Kotta

Raisoni Group of Institutions

ŁC

Ł. Ciupiński

Warsaw University of Technology

A. Basu

Rajiv Gandhi Technical University

Cooperative Institutions

National Institute of Technology Rourkela

Indian Institute of Technology Kharagpur

Indian Institute of Technology Kanpur

Institute of Minerals and Materials Technology

Warsaw University of Technology

Indian Institute of Technology Indore

Banaras Hindu University

Indian Institute of Technology Bombay

KIIT University

National Institute of Technology Meghalaya

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Second Law of Thermodynamics and Entropy

Santosh Kumar Sahoo Mithilesh Kumar Swapan Kumar Karak

Equations for variation of entropy with temperature under isobaric and isochoric conditionsEquations for entropy change under isochoric and isobaric conditions have also been obtained and interpreted sufficiently for determination of entropyEntropy of a systemSystems/material at a particular temperature.

Isochoric process

Isobaric process

10.1007/978-981-99-6671-4_3

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Effect of welding parameters on mechanical and microstructural properties of GMAW and SMAW mild steel joints

Ironmaking & Steelmaking Processes Products and Applications (2019)

Bijaya Kumar Khamari S.S. Dash Swapan Kumar Karak Bibhuti Bhusan Biswal

This work describes welding of the sheets with different thickness values and then characterizing the mechanical and microstructural properties for two different types of welding i.e. GMAW and SMAW. The joints are devised in such pattern that the effect of sheet thickness and welding current on these properties can be easily assessed. Initial microstructural studies are carried out with high-resolution optical microscopy and SEM. These images are then processed in ImageJ software to analyze various properties of different phases involved. Mechanical properties like the tensile strength, microhardness, impact energy or toughness are also measured and correlated with the microstructures and welding parameters. The main aim of this project is to design new set of welding parameters for structural steels that are used widely in different construction works and industries. Optimizing the results and choosing the best possible way to get superior properties are the key points.

10.1080/03019233.2019.1623592

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Citations (41)

Chemical, physical, thermal, textural and mineralogical studies of natural iron ores from Odisha and Chhattisgarh regions, India

Journal of Central South University (2018)

Anand Babu Kotta Swapan Kumar Karak Mithilesh Kumar

10.1007/s11771-018-3958-6

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Citations (7)

Effect of Y2O3 and Al2O3 sintering additives during fabrication of Si3N4–Mo–Si cermet by conventional pressure-less sintering

Ceramics International (2019)

Sushree Sefali Mishra D. Chaira Swapan Kumar Karak

Cermet

Powder Metallurgy

Relative density

10.1016/j.ceramint.2019.07.035

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Effect of Al addition on SiC–B 4 C cermet prepared by pressureless sintering and spark plasma sintering methods

International Journal of Refractory Metals and Hard Materials (2016)

Pankajini Sahani Swapan Kumar Karak B. Mishra Dibyendu Chakravarty D. Chaira

Spark Plasma Sintering

Cermet

Relative density

10.1016/j.ijrmhm.2016.02.005

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Variation of Microstructural and Mechanical Properties With Respect to Polarity in Shielded Metal Arc Welding of Mild Steel

International Journal of Mathematical Engineering and Management Sciences (2019)

Bijaya Kumar Khamari Gunji Bala Murali Swapan Kumar Karak Bibhuti Bhusan Biswal

Welding has been done by taking mild steel as work piece material in shielded metal arc welding (SMAW) process. Material thickness and current were considered as input parameters. Joining of metals has been completed in two ways. In first process double pass welding has been done in which 1st pass was in reverse polarity and the second pass was in straight polarity and in the 2nd process both the passes of welding were completed with straight polarity. The comparison of microstructure and impact toughness has been investigated. It was found that more amount of heat was generated in the 2nd process as compared to the 1st process. Therefore, growths of grains in heat affected zone occurred and maximum growth occurred in 2nd than 1st process. Impact strength increased with decrease in current value and increase in material thickness respectively. The impact strength values for 1st process welding were relatively less as compared to 2nd process.

Polarity (international relations)

10.33889/ijmems.2019.4.2-042

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Assessment of Reduction Behaviour of Low-Grade Indian Hematite Iron Ore Pellets by Non-Coking Coal

Transactions of the Indian Institute of Metals (2023)

Avula Leela Sukh Brahma Reddy Swapan Kumar Karak Santosh Kumar Sahoo Mithilesh Kumar

Isothermal process

Iron ore

Pelletizing

Bentonite

Atmospheric temperature range

10.1007/s12666-023-03043-8

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Thermodynamics of Solutions

Santosh Kumar Sahoo Mithilesh Kumar Swapan Kumar Karak

Solutions have thermodynamic properties distinct from those of their constituents.

10.1007/978-981-99-6671-4_6

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Effect of Mineralogy on Reduction Behaviour of Iron Ore Pellets

Materials science forum (2020)

Anand Babu Kotta Swapan Kumar Karak Mithilesh Kumar

The present study deals with impact of gangue amount (Al 2 O 3 , SiO 2 ) in iron ores on reduction of its pellets for production of sponge iron. Iron ore pellets were reduced isothermally with noncoking coal fines in the range of 1123 - 1273 K with a time interval of 15, 30,45,60,90 and 120 min. As the temperature rose from 1123 to 1223 K, the reducibility index of iron ore pellets increased and then decreased at temperature 1273 K. All iron ore pellets shows complete reduction at temperatures of 1173 and 1223 K within 120 minutes. The reduction results clearly show that the reducibility of the pellets depends on the initial mineralogy of the ore. It was also observed that the reducibility decreased as gangue content (Al 2 O 3 + SiO 2 ) increases. The activation energy of the pellets decreased from 46.54 and 49.13 kJ/mol when the gangue content increased. The pellets were metallographically characterized before and after reduction to identify phase transformations. Examination of the SEM microphotographs revealed that Whisker shape of iron grains were formed during the reduction process and clear porous structure was observed.

Gangue

Pelletizing

Iron ore

Isothermal process

Direct reduced iron

10.4028/www.scientific.net/msf.978.525

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Vacuum Technology and Processes for Metallurgical Applications

Swapan Kumar Karak

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