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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
I
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.
e:
einkhah@gmail.com