Mechanical Characteristic Behaviour of Medium Carbon Low Nickel Chromium Steel to General Conventional Heat Treatments

Ghosh, Devpriyo and Nangia, Sarthak and Chakravarty, Sourav and Maben, Sharwin and Sharma , S S (2015) Mechanical Characteristic Behaviour of Medium Carbon Low Nickel Chromium Steel to General Conventional Heat Treatments. Universal Journal of Materials Science, 3 (3). pp. 49-54.

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Abstract

The medium carbon low nickel chromium steel is a widely used high strength low alloy steel that provides an advantageous combination of strength, hardness, toughness and ductility for machine part members. It has been widely used for fabrication of parts like gears, cams, piston rods and shafts to name a few. This steel may be subjected to general conventional heat treatments to substantially alter its mechanical characteristics. The typical microstructure of hardened steel shows a martensitic matrix responsible for its strength and wear resistance. Before hardening and tempering, normalizing heat treatment was given to standardize the microstructure. In this study tensile, microstructure and hardness specimens were prepared and subjected to Hardening and Tempering heat treatment. The tensile strength of each specimen including the as-received was tested in an electronic tensometer. Microstructures were recorded on heat treated as well as untreated conditions. Rockwell hardness test was performed on each of the hardness specimen including the as-received one.

Item Type: Article
Uncontrolled Keywords: Heat Treatment, Hardening, Tempering, Tensile Strength, Hardness, Holding Time
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 17 Aug 2015 10:49
Last Modified: 17 Aug 2015 10:49
URI: http://eprints.manipal.edu/id/eprint/143863

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