Effect of Carburization on the Mechanical Properties of EN-8 Steel in different Quenching Medium at different Quenching Time Intervals
Journal Title: International Journal of Metallurgical & Materials Science and Engineering (IJMMSE) - Year 2017, Vol 7, Issue 4
Abstract
EN-8 is widely used for many general engineering applications. Typical applications include shafts, studs, bolts, connecting rods, screws, rollers. The Main Purpose of the Paper is to study the effect of heat treatment of carburizing specimens of EN-8(medium carbon steel) [1] by varying two parameter i.e. quenching time and quenching medium. The carburization process is carried out for 8 hours at a constant temperature of 940°C followed by quenching with different media like air, water and oil for various quenching times i.e. 60, 70 and 80 mins. The specimens so obtained are subjected to tests, for determination of tensile strength, Hardness and case depth. The results of these tests show that, as quenching time increases, there is an improvement in mechanical properties like tensile strength and are more for, water-quenched and least for air-quenched steels. Oil-quenched show intermediate values. From the experimentation, it is also clear that, as the depth of the carbon layer increases, hardness and tensile strength are also increasing. The experimental results are also supported by microstructure study, which show the formation of marten site, that causes improvement in hardness and tensile strength.
Authors and Affiliations
BSR VENU MADHAV,, ABDUL AHAD MOHIUDDIN, MOHAMMED ATIFUDDIN
Keywords
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- EP ID EP282338
- DOI 10.24247/ijmmsedec20171
- Views 131
- Downloads 0
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