Characterization of Materials Used for Rotavator Blades
2011
Singh, Dushyant | Saxena, A C
In rotavator, blades are generally made of medium carbon low alloy steels and during operation the blades are subjected to fatigue and abrasive wear. It results frequent replacement, which further added to equipment running cost as well as down time. The aim of this study was to identify suitable material and heat-treatment process to produce high quality wear resistant rotavator blade with affordable cost for the Indian farmers. For this the leading manufacturers/dealers/suppliers of rotavator blades were visited and interviewed, and samples were collected from twelve leading manufacturers/dealers of five states (namely Madhya Pradesh, Punjab, Haryana, Gujarat and Tamil Nadu) of India. Out of these twelve different blades six were selected for their chemical composition, mechanical & micro-structural studied. The study revealed that there was wide variation in chemical composition and mechanical as well as micro-structural properties of these rotavator blades. It was also found in the study that rotavator blades collected from the dealers of importers contained boron in trace level or some alloying elements.
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