Microstructural Evolution during Simple Heavy Warm Deformation of a Low-Carbon Steel

Abstract:

Article Preview

We examined the microstructure development in low carbon steel (0.15% C) during heavy warm deformation (HWD) using field emission scanning electron microscopy (FESEM) and electron back-scattering diffraction (EBSD). Plane strain compression tests have been conducted in the temperature range of 773-923 K at strain rates of 0.01 s-1 and 1 s-1 with the specimens deformed to 25% of their original thickness. We summarize the strain rate and temperature into the Zener-Hollomon parameter and investigate its variation with plastic strain on the basis of the evolved microstructures and grain boundary character with a view to understanding the critical conditions for forming ultrafine grains and classifying them. Once established, these compressive strain-Z parameter plots simplify the selection of processing parameters (such as strain, strain rate, and temperature), towards achieving tailor-made microstructures in industrial components.

Info:

Periodical:

Edited by:

Yukichi Umakoshi and Shinji Fujimoto

Pages:

49-54

DOI:

10.4028/www.scientific.net/MSF.512.49

Citation:

S.V.S. Narayana Murty et al., "Microstructural Evolution during Simple Heavy Warm Deformation of a Low-Carbon Steel", Materials Science Forum, Vol. 512, pp. 49-54, 2006

Online since:

April 2006

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.