Tempering Process Investigation on Heat Treated AISI-4130
Keywords:
Tensile strength, Yield strength, Elongation %, Brinell hardness, Charpy impact.Abstract
Investigations were carried out to study the effects of heat treatment on the mechanical properties in AISI-4130 flange. Specimens of AISI-4130 were examined after heating at 870 deg. and soaked for 38 minutes in a continuous pusher hardening furnace and quenched in water. The mechanical behavior of the specimens was investigated using universal tensile testing machines for mechanical properties and Charpy impact test on ?60 deg. The hardness values and tensile strength of the quenched samples were relatively higher than suggested improved mechanical properties. Tensile test specimens were produced from AISI-4130 and were subjected to various forms of heat treatment process like normalizing, hardening and tempering. Results showed that the required mechanical properties can be changed and improved by normalizing structure for a particular application.
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