Investigation on Spheroidizing Annealing Heat Treatment on Mechanical Properties of EN24 Steel

Harisha, S R and Sharma, S S and Kini, Achutha U and Nayak, Siddharth P and Saika, Arnav (2015) Investigation on Spheroidizing Annealing Heat Treatment on Mechanical Properties of EN24 Steel. In: National Conference on Emerging Trends in Mechanical Engineering, September 23, 2015, VVCE, Mysuru.

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Abstract

The high temperature phase austenite in steel has the property to transform into a variety of room temperature phases like coarse pearlite, bainite & martensite depending upon the cooling cycle. The machinability and toughness depend upon the shape and distribution of pro eutectoid harder phases. The spherical or oval shapes give lesser resistance for machining process. So it is required to design the heat treatment to tailor the property as required by the application. In this view, it is proposed to study the mechanical and micro structural properties of EN47 steel undergoing Spheroidization. The aim of this work is to test the hardness, toughness and wear property of the steel in spheroidised condition. Hardening treatment improves hardness of the material, a marginal decrease in hardness value with improved ductility is observed in tempering. Hardening and longer duration tempering show better wear resistance compared to other heat treatments. Both mild and severe wear regions are observed. Generally mild wear region is observed above 5 hours of continuous running of the specimen. Micro structural analysis shows the existence of pearlitic structure in as bought & normalized specimens, lath martensitic structure in hardened specimen.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Spheroidization, Normalizing, Hardness, Impact strength, Wear Test.
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 06 Oct 2015 10:56
Last Modified: 25 Aug 2016 15:12
URI: http://eprints.manipal.edu/id/eprint/143974

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