This work examined thermo-mechanical and metallurgical parameters (temperature and
cooling rate) that give rise to substantial improvement in the basic functional strength
characteristics of high-yield reinforcing steels produced in a conventional mill. A new
process tagged Temperature Tracking-Jet Water Spray (TT-JEWAS) was developed to
achieve requisite in-process control of thermal variations on one hand and fast
undercooling by spray quenching on the other. The alternative microstructure obtained,
lower bainite instead of pearlite induced in the steel, gave rise to a significant improvement
in the strength characteristics (Yield strength, 422-843MPa; Ultimate tensile strength, 704-1173MPa, Impact energy, 85-111J) and reliability of the steel. These compared favourably
with both local and international standards (NIS 117:2004, BS 4449:1988 and ASTM
A615: 1996). This result implies that substantial import substitution can be achieved in the
high-yield reinforcing steel bar industry to give tremendous boost to the nation‟s Gross
Domestic Products (GDP). Bainitic Yield strength-band and Empirical model developed
from the results of this work are extremely useful for in-process quality control and
prediction of yield strength of hot rolled steel bars. This will lead to improvement in
processing methods in the local steel industry.
The Public Access, L (2021). Thermomechanical Processing And Constitutive Strength Of Hot Rolled Mild Steel. Afribary.com: Retrieved May 13, 2021, from https://afribary.com/works/thermomechanical-processing-and-constitutive-strength-of-hot-rolled-mild-steel
Library, The Public Access. "Thermomechanical Processing And Constitutive Strength Of Hot Rolled Mild Steel" Afribary.com. Afribary.com, 03 May. 2021, https://afribary.com/works/thermomechanical-processing-and-constitutive-strength-of-hot-rolled-mild-steel . Accessed 13 May. 2021.
Library, The Public Access. "Thermomechanical Processing And Constitutive Strength Of Hot Rolled Mild Steel". Afribary.com, Afribary.com, 03 May. 2021. Web. 13 May. 2021. < https://afribary.com/works/thermomechanical-processing-and-constitutive-strength-of-hot-rolled-mild-steel >.
Library, The Public Access. "Thermomechanical Processing And Constitutive Strength Of Hot Rolled Mild Steel" Afribary.com (2021). Accessed May 13, 2021. https://afribary.com/works/thermomechanical-processing-and-constitutive-strength-of-hot-rolled-mild-steel