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Journal of Materials Science and Nanotechnology | Volume 2

July 23-25, 2018 | Moscow, Russia

Materials Science and Engineering

International Conference on

The effects of microalloying elements and temperaging treatments parameters on Nb-V containing

cast microalloyed steels

F Einkhah, J Rassizadehghani

and

H Najafidejdehmonfared

Iranian University, Iran

n this study. base composition without alloying elements and

three microalloyed steels containing 0.06%wt V and 0.06%wt

Nb-0.1% wt V in induction furnace. in controlled condition.

Were casted. Temperaging were carried out on all of specimens

for precipitation strengthening. For studying the influence of

temperaging time and temperature. specimens with different

chemical compositions were temperaged at 400,500,600 and

700 C for 1,3 and 5 h. All of specimens in as-cast condition

were studied using optical microscope and hardness tester.

Results showed that as-cast specimens having ferrite-pearlitic

microstructures. Nb-bearing specimens shows acicular

microstructures. The heat-treated samples were studied using

Electron Microscope Analysis and hardness tester. Studying of

mechanical properties of heat treated specimens, showed that

because of precipitation strengthening, hardness of samples

increased. By increasing of temperaging temperature in a

constant time, hardness has an optimum value.

Speaker Biography

Farnaz Einkhah is an Iranian university teacher at Rasht, in the north of Iran. She was

graduated in the Foundry field at Tehran University and earned master degree in 2005.

She began to work as Research and Development Unit Manager at Gilan Steel Complex

in 2006 and simultaneously Taught Corrosion in the building, Steel Project, Principles Of

Building Maintenance in University of Applied Science and Technology of Rasht Academic

Center for Education. In recent fourteen years she has taught many courses in Karaj House

of Worker University of Applied Science and Technology, Rasht Academic Center for

Education and Mouj Nonprofit University. She has codified 5 single course and one single

Module In University of Applied Science and Technology that is in the stage of Approval.