Recent developments and applications of TMCP steel plates

Schwinn, Volker; Bauer, Jürgen; Flüß, Peter; Kirsch, H.-J.; Amoris, Eric

doi:10.1051/metal/2011054

Cited by 19 publications

(7 citation statements)

References 4 publications

(2 reference statements)

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“…Heavy thickness, extra-width, and extra-length steel plate with yield strength higher than 460 MPa is widely used for ship-building. [1][2][3][4][5] Due to the lower carbon content these steels show less sensitivity to hydrogen-induced cold crack (HICC) and can be welded without preheating, therefore reduce the time and cost of fabrication. However, for these steels, welding is still a critical process, which produces the coarse-grain heat-affected zone (CGHAZ) and deteriorates the property of the welded joint.…”

Section: Introductionmentioning

confidence: 99%

Micromechanism of Decrease of Impact Toughness in Coarse-Grain Heat-Affected Zone of HSLA Steel with Increasing Welding Heat Input

Cao

Liu

et al. 2015

Metall Mater Trans A

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This paper analyzes the micromechanism of decrease of impact toughness with increasing the welding heat input in coarse-grain heat-affected zone (CGHAZ) of a low-alloy high-strength ship-building steel plate. By comparing the microstructures, measuring the extending length of the fibrous crack, identifying the critical event of cleavage fracture, measuring the critical length, and calculating the local cleavage fracture stress r f , and then using the basic principles of the micromechanism of cleavage fracture, this work reveals the essential causes of deteriorated toughness in the CGHAZ of high-strength steel welded joints.

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Section: Introductionmentioning

confidence: 99%

Micromechanism of Decrease of Impact Toughness in Coarse-Grain Heat-Affected Zone of HSLA Steel with Increasing Welding Heat Input

Cao

Liu

et al. 2015

Metall Mater Trans A

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“…The current development of the global rolled steel market is characterized by a constant increase in the share of products produced by the Thermo-Mechanical Controlled Process (TMCP) [1][2][3]. The essence of this process lies in the combination of controlled hot rolling with controlled cooling in the temperature range of microstructural transformations in steel [4].…”

Section: Introductionmentioning

confidence: 99%

Validation of the Cooling Model for TMCP Processing of Steel Sheets with Oxide Scale Using Industrial Experiment Data

Beygelzimer¹,

Beygelzimer

2022

JMMP

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To verify the mathematical model of the water-jet cooling of steel plates developed by the authors, previously performed experimental studies of the temperature of the test plates in a roller-quenching machine (RQM) were used. The calculated temperature change in the metal as it moved in the RQM was compared with the readings of thermocouples installed at the center of the test plate and near its surface. The basis of the model is the dependence of the temperatures of the film, transition and nucleate boiling regimes on the thickness of the oxide scale layer on the cooled surface. It was found that the model correctly accounts for the oxide scale on the sheet surface, the flow rates and combinations of the RQM banks used, the water temperature, and other factors. For all tests, the calculated metal temperature corresponded well with the measured one. In the experiments with interrupted cooling, the calculated temperature plots repeated the characteristic changes in the experimental curves. The main uncertainty in the modeling of cooling over a wide temperature range can be attributed to the random nature of changes in the oxide scale thickness during water cooling. In this regard, the estimated thickness of the oxide scale layer should be considered the main parameter for adapting the sheet temperature-control process. The data obtained confirm the possibility of effective application of the model in the ACS of industrial TMCP (Thermo-Mechanical Controlled Process) systems.

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“…Controlled rolling and controlled cooling technology, normally termed as thermalmechanical controlled process (TMCP), has been successfully adopted in the production of high strength steels for many years 1,2 . The continuous cooling process is normally used in the processing of steels.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ausforming on Retained Austenite After Continuous Cooling Transformation in a Medium-Carbon High Strength Steel

Liu

Chen

et al. 2020

Mat. Res.

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Recent developments and applications of TMCP steel plates

Cited by 19 publications

References 4 publications

Micromechanism of Decrease of Impact Toughness in Coarse-Grain Heat-Affected Zone of HSLA Steel with Increasing Welding Heat Input

Micromechanism of Decrease of Impact Toughness in Coarse-Grain Heat-Affected Zone of HSLA Steel with Increasing Welding Heat Input

Validation of the Cooling Model for TMCP Processing of Steel Sheets with Oxide Scale Using Industrial Experiment Data

Effect of Ausforming on Retained Austenite After Continuous Cooling Transformation in a Medium-Carbon High Strength Steel

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