Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 1

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Content available remote

Tool Steels: Forging Simulation and Microstructure Evolution of Large Scale Ingot

100%
Mengaroni S., Cianetti F., Calderini M., Evangelista E., Di Schino A., McQueen H.
Acta Physica Polonica A
|
2015
|
vol. 128
|
issue 4
629-632
EN
The aim of this paper is to analyze the hot working behavior of two different steels based on 3% and 5% Cr steel chemistry, respectively. Hot deformation is studied by hot torsion tests in the range of temperatures 1000-1200°C and strain rates 0.01, 0.10, 1.00 s^{-1}. At given temperatures and strain rates flow curves exhibit a peak followed by a decline towards a steady state which is indicative of dynamic recrystallization. At constant strain, flow stress increases with increasing strain rate and decreasing temperature. The analysis of the constitutive equation relating peak flow stress, strain rate and temperature shows high activation energy values for both steels. Recrystallized volume fraction of steels after hot deformation is estimated based on the grain orientation spread as measured by electron backscattered diffraction technique, on the hot deformed and quenched materials.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.