Improvement in Mechanical Properties of AISI 4147 Spring Steel through Heat Treatment Technique

Sharma , S S and Jagannath, K and Bhat, Chandrashekhar and Kini, Achutha U and Prabhu, P R and Jayashree, P K and Gowri Shankar , M C (2013) Improvement in Mechanical Properties of AISI 4147 Spring Steel through Heat Treatment Technique. International Journal of Research in Engineering and Technology (IJRET), 2 (3). pp. 127-131. ISSN 2277 – 4378

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Abstract

Today steel is the important resource in this industrialized world. Moreover steels with chromium and vanadium percentage can be effectively used as spring steels which form the suspension system. Prevention of wear and increase in steel life depends principally on the design and operation on the component, but providing some useful heat treatment on steel can also improve the strength and hardness. Properties of alloys can be improved by changing the room temperature microstructure, accordingly the route is known as heat treatment. The major requirement for the conventional spring steel is toughness, stiffness, & hardness. In this view, it is proposed to study the mechanical and tribological properties of AISI 4147 spring steel with different heat treatments like normalizing, hardening and tempering. Both mild and severe wear regions are observed. Microstructural analysis shows the existence of pearlitic structure in as bought & normalized specimens, lath martensitic structure in hardened specimen.

Item Type: Article
Uncontrolled Keywords: tempering, hardness, heat treatment, normalizing, toughness
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 24 Sep 2013 10:00
Last Modified: 24 Sep 2013 10:00
URI: http://eprints.manipal.edu/id/eprint/137267

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