scholarly journals Mean-flow-stress analysis of laboratory hot-rolled S1100QL steel with minor Nb addition

2020 ◽  
Vol 54 (6) ◽  
pp. 901-908
Author(s):  
J. Foder ◽  
G. Klančnik ◽  
J. Burja ◽  
S. Kokalj ◽  
B. Bradaškja
Keyword(s):  
Flow Stress ◽  
Stress Analysis ◽  
Mean Flow ◽  
Mean Flow Stress ◽  
Hot Rolled ◽  
Nb Addition

Application of Deformation to Improve Hot Ductility in the Peritectic Steel

2005 ◽  
Vol 500-501 ◽  
pp. 203-210 ◽  
Author(s):  
Ahmad Rezaeian ◽  
Faramarz Zarandi ◽  
D.Q. Bai ◽  
Steve Yue
Keyword(s):  
Flow Stress ◽  
High Strength ◽  
Microalloyed Steels ◽  
Hot Strip Mill ◽  
Mean Flow ◽  
Hot Strip Rolling ◽  
Strip Rolling ◽  
Slip Ratio ◽  
Hot Strip ◽  
Mean Flow Stress

The hot strip rolling of advanced microalloyed high strength steels still represents a new task to many mills due to the lack of data on the hot deformation resistance. With the aid of processing data from the Ispat-Inland hot strip mill, the “measured mean flow stresses” are calculated from the mill force using the Sims analysis and taking into account roll flattening, slip ratio and the redundant strain. A modification of the Misaka mean flow stress equation is proposed for C – Mn – Si – Al steels microalloyed with up to 0.02 % Nb. The effects of alloying and microalloying are then estimated. A new fitting parameter shows excellent agreement with the mean flow stress data from industrial processing of advanced high strength microalloyed steels. However, during the second half of the rolling schedule (lower temperature region), indications of austeniteto- ferrite transformation were found.

scholarly journals Convective Pattern Deformations under Mean Flow Stress

1987 ◽  
Vol 4 (2) ◽  
pp. 253-253 ◽  
Author(s):  
A Pocheau ◽  
V Croquette ◽  
P. Le Gal ◽  
C Poitou
Keyword(s):  
Flow Stress ◽  
Mean Flow ◽  
Mean Flow Stress ◽  
Convective Pattern

Determination of the Non-Recrystallisation Temperature (Tnr) of Austenite in High Strength C-Mn Steels

2012 ◽  
Vol 706-709 ◽  
pp. 2722-2727 ◽  
Author(s):  
Jai Gautam ◽  
Alexis G. Miroux ◽  
J. Moerman ◽  
Carla Barbatti ◽  
Peter van Liempt ◽  
...  
Keyword(s):  
Flow Stress ◽  
Work Hardening ◽  
High Strength ◽  
Mean Flow ◽  
Alternative Approach ◽  
Interpass Time ◽  
Work Hardening Rate ◽  
Mean Flow Stress ◽  
Hot Torsion

In the present study non-recrystallisation (Tnr) and Ar3 temperatures have been determined for the C-Mn steels from multi-pass hot torsion experiments with continuous cooling in the temperature range of 1260°C to 600°C. Results show that Tnr decreases with increasing strain/pass, strain rate or interpass time. An alternative approach based on the work-hardening rate is proposed for the determination of Tnr and is shown to be more suitable in case the usual mean flow stress method does not provide a clear Tnr value.

Convective Pattern Deformations under Mean Flow Stress

1987 ◽  
Vol 3 (8) ◽  
pp. 915-920 ◽  
Author(s):  
A Pocheau ◽  
V Croquette ◽  
P. Le Gal ◽  
C Poitou
Keyword(s):  
Flow Stress ◽  
Mean Flow ◽  
Mean Flow Stress ◽  
Convective Pattern
Sign in / Sign up

Export Citation Format

Share Document