PROCESSING OF GRADE A LOW CARBON STEEL BY EQUAL CHANNEL ANGULAR PRESSING

Yıl 2020, Cilt: 9 Sayı: 1, 557 - 564, 30.01.2020

Muhammet Demirtaş

https://doi.org/10.28948/ngumuh.512960

Cited By: 1

Öz

Grade
A steel was processed using equal channel angular pressing (ECAP). 1 pass ECAP
did not cause considerable decrease in the grain size of the steel. It brought
about two different microstructures on flow and transverse planes of the ECAP
billet, instead. Microstructure consists of elongated ferrite and perlite
grains aligned in a direction having mainly 45° angle with the extrusion direction on the flow plane while nearly
equiaxed grains were formed on the transverse plane. These differences between the
microstructures of two different planes of the ECAP sample is attributed to the
share planes that operative during ECAP. ECAP increased hardness and strength
values of the steel significantly due to the increase in the dislocation
density during the process. However, it decreased elongation to failure
considerably. It was found that impact energy of the ECAP-processed sample is
dependent on the notch position of the Charpy impact test sample

Anahtar Kelimeler

Low carbon steel, Grade A steel, Equal channel angular pressing (ECAP

Kaynakça

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