Characterization of hot deformation behavior of a low carbon steel using processing maps, constitutive equations and Zener-Hollomon parameter

Rajput, S.K.; Chaudhari, G.P.; Nath, S. K.

doi:10.1016/j.jmatprotec.2016.06.008

Cited by 74 publications

(23 citation statements)

References 27 publications

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“…Figure 11 shows the transmission electron microscope (TEM) images of the specimen deformed at 1 and 0.01/s strain rates where CA denotes the compressive axis. Rajput et al [80] studied the hot-deformation behaviour of AISI 1010 steel at different regimes of strain rates (0.01-20 s −1 ) and temperature ranging from 750-1050 °C. They correlate the variation in flow stress with the change in microstructure and Zener-Hollmann parameter and reported instability in the flow stress at higher strain rates as shown in Figure 12.…”

Section: Low Carbon Steelmentioning

confidence: 99%

“…The true stress of the flow curve for a constant strain rate was found to be gradually decreased with an increase in the temperature. Rajput et al [80] studied the hot-deformation behaviour of AISI 1010 steel at different regimes of strain rates (0.01-20 s −1 ) and temperature ranging from 750-1050 • C. They correlate the variation in flow stress with the change in microstructure and Zener-Hollmann parameter and reported instability in the flow stress at higher strain rates as shown in Figure 12. The true stress of the flow curve for a constant strain rate was found to be gradually decreased with an increase in the temperature.…”

Section: Low Carbon Steelmentioning

confidence: 99%

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Structure–Property Correlation and Constitutive Description of Structural Steels during Hot Working and Strain Rate Deformation

Prusty

Banerjee

2020

Materials

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The behaviour of plain carbon as well as structural steels is qualitatively different at different regimes of strain rates and temperature when they are subjected to hot-working and impact-loading conditions. Ambient temperature and carbon content are the leading factors governing the deformation behaviour and substructural evolution of these steels. This review aims at investigating the mechanical behaviour of structural (or constructional) steels during their strain rate (ranging from very low to very high) as well as hot-working conditions and subsequently establishing the structure–property correlation. Rate-dependent constitutive equations play a significant role in predicting the material response, particularly where the experiments are difficult to perform. In this article, an extensive review is carried out on the merits and limitations of constitutive models which are commonly used to model the deformation behaviour of plain carbon steels.

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Section: Low Carbon Steelmentioning

confidence: 99%

Section: Low Carbon Steelmentioning

confidence: 99%

Structure–Property Correlation and Constitutive Description of Structural Steels during Hot Working and Strain Rate Deformation

Prusty

Banerjee

2020

Materials

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“…strain ε exceeds the critical strain εk. Main data in this model is Zener-Hollomon parameter (Rajputa et al, 2016):…”

Section: Computer Simulationmentioning

confidence: 99%

Study of Technology for Ultrafine-Grained Materials for Usage as Materials in Nuclear Power

Naizabekov

Arbuz

Lezhnev

et al. 2019

New Trends in Production Engineering

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Nuclear power is associated with great environmental risks. In many cases, the problem of accidents of nuclear power plants is related to the use of materials that do not fully meet the following requirements: high corrosion resistance; high temperature resistance; creep resistance; fracture toughness; stability of structure and properties under irradiation. Therefore, studies aimed at finding materials that can withstand long-term loads at high temperatures, aggressive environment and gradual structural degradation under the influence of radiation are relevant. One of the structural materials, which has high resistance to radiation, is austenitic stainless steel. And one of the ways to increase the radiation resistance of parts made of this steel grade is to grind its microstructure to ultra-fine-grained state. Such structures provide a combination of a high level of strength characteristics with high plasticity, which distinguishes such materials from their coarse-grained counterparts. Also, numerous grain boundaries serve as runoff surfaces for radiation defects, preserving the structure, which causes their increased radiation resistance. From all methods for producing sub-ultra-finegrained materials the most promising is the severe plastic deformation (SPD), which can be implemented in the metal in various ways, including radial-shear rolling. This paper presents the results of studies of the process of radial-shear rolling on the mill SVP-08 and its effect on the microstructure and properties of austenitic stainless steel. During the study, bars with a diameter of 13 mm from AISI-321 steel with a grain size of 300-600 nm were obtained, while the mechanical properties increased more than 2 times compared to the initial values.

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“…Also, Yang et al 6 studied the processing parameters of a low-carbon bainitic steel based on the high-temperature flow behavior and microstructural evolution, and the optimum window for the hot deformation were identified as 930-980°C and 0.001-0.014 s 21 with peak efficiency of 41% and activation energy of 393.5 kJ/mol. Rajput et al 7,8 characterized the hot deformation behaviors of AISI1010 and low-carbon Ti-Nb microalloyed steel using constitutive equations and processing maps. Xiang et al 9,10 developed the processing map of Nb-V-Ti and Q690 low-carbon microalloyed steel by the dynamic materials model (DMM), and the relationship between microstructure and hot workability were investigated through microstructural observations.…”

Section: Introductionmentioning

confidence: 99%

Research on high temperature deformation behavior of low carbon steel based on processing map

Dao-chun

Wang

Hua

2019

Advances in Mechanical Engineering

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The high temperature deformation behaviors of low-carbon steel QD08 were investigated by hot compression tests over temperatures from 1000°C to 1200°C and strain rates from 0.1 to 10 s 21. In order to describe the flow characteristics, a constitutive equation was developed and the relation between the flow stress and Zener-Hollomon parameter was successfully analyzed via the hyperbolic sine function under the whole range of deformation condition. It can be found that the critical strain e c increases with parameter Z increasing; the critical conditions for onset of dynamic recrystallization is e. e c = 61:9381Z 0:1033. Based on dynamic material model and Prasad's instability criterion, the power dissipation map and the instability map were developed. The results show that the security domain of hot deformation for low-carbon steel QD08 at the temperature range between 1070°C and 1100°C, and strain rate range of around 5-10 s 21 , with a higher power dissipation factor, maintains a smooth variation, under stable deformation conditions. On the basis of processing map, the optimal deformation processing parameters are the hot deformation temperature range from 1070°C to 1100°C, and strain rate range from 5 to 10 s 21 .

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Characterization of hot deformation behavior of a low carbon steel using processing maps, constitutive equations and Zener-Hollomon parameter

Cited by 74 publications

References 27 publications

Structure–Property Correlation and Constitutive Description of Structural Steels during Hot Working and Strain Rate Deformation

Structure–Property Correlation and Constitutive Description of Structural Steels during Hot Working and Strain Rate Deformation

Study of Technology for Ultrafine-Grained Materials for Usage as Materials in Nuclear Power

Research on high temperature deformation behavior of low carbon steel based on processing map

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