Constitutive Model and Flow Behavior of B1500HS High-Strength Steel During the Hot Deformation Process

Li, Muyu; Duan, Yongchuan; Yao, Dan; Guan, Yaping; Liu, Yang

doi:10.3390/met10010064

Cited by 13 publications

(16 citation statements)

References 20 publications

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“…The flow stress-strain curve of the BM decreases twice with the increase of strain. According to the results of previous research [ 28 ], dynamic recrystallization occurs in B1500HS high-strength steel under high temperature and low strain rate conditions. The softening effect caused by this phenomenon leads to the flow stress of the BM decrease for the first time with the increase of strain.…”

Section: Resultsmentioning

confidence: 93%

Effect of Welding Speed and Post Quenching on the Microstructure and Mechanical Properties of Laser-Welded B1500HS Joints

Yao

Guan

et al. 2020

Materials

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In this research, B1500HS high-strength steel with different thicknesses were laser welded, and the effects of welding speed and post quenching were investigated by analyzing the microstructure, microhardness distribution, and high-temperature tensile properties of weld joints. The results show that an obvious difference can be found in the metallographic structure and grain morphology of the weld joint at different locations, which also lead to the significant uneven distribution of hardness. After quenching, the grain size of the original heat-affected zone was uniform, the columnar grains in the fusion zone were transformed into fine equiaxed grains, and no obvious hardness difference can be found in the weld joint. For the weld joint without quenching, the increase of welding speed can reduce the dimensions of grains of fusion zone and coarse grain zone, and slightly increase the hardness of these regions. In contrast, welding speed change has little influence on the microstructure and hardness of the weld joint after quenching. The high-temperature flow stress–strain curves of fusion zone welded under different welding speeds were calculated based on the mixture rule. The analysis results indicated that the fusion zone has higher strength but lower elongation than the base metal. In addition, the change of welding speed has a small impact on the high-temperature tensile properties of the fusion zone.

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Section: Resultsmentioning

confidence: 93%

Effect of Welding Speed and Post Quenching on the Microstructure and Mechanical Properties of Laser-Welded B1500HS Joints

Yao

Guan

et al. 2020

Materials

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“…Li et al [213] predicted the flow behaviour of B1500HS low carbon steel when subjected to compression tests at different strain rates (0.005 to 10/s) as well as temperature ranging from 700-900 • C. The developed model was found in good agreement with the experimental results. Lee and Liu [123] predicted the flow stress behaviour of low (0.15% C), medium (0.48% C) and high carbon (1.16% C) steel at two different sets of strain rates and temperature regimes by applying the Zerilli-Armstrong (ZA) body-centered cubic BCC model [214,215].…”

Section: Numerical Modellingmentioning

confidence: 84%

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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“…Knowledge of the thermo-mechanical properties of such new materials is essential for accurately designing and simulating PH process by means of Finite Element (FE) codes [10]. Many studies have investigated the high-temperature flow behavior of the USI-BOR ® 1500 steel [11][12][13][14][15][16].…”

Section: Methodsmentioning

confidence: 99%

Comparison of Flow Behaviors at High Temperature of Two Press Hardening Boron Steels with Different Hardenability

Palmieri

Tricarico

2022

Metals

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The deformation behavior and the constitutive description of materials are important in the design and numerical simulation of manufacturing processes. In this work, the rheological behavior of two quenchable boron steels was derived in the range of interest for the Press Hardening (PH) process. For this study, the following steps were performed: (i) Design of the specimen geometry adopted during the hot tensile tests in the Gleeble®3180 physical simulator. (ii) Performance of hot tensile tests at temperatures between 750 and 850 °C and strain rates of 0.01–1 s−1. (iii) The description of the material constitutive model by means of the Arrhenius-type equation and the comparison between the experimental and predicted data. Firstly, the method was validated on USIBOR®1500 boron steel by means of a comparison with existing literature data, and good agreement with other scientific works was found. Finally, this method was also adopted on USIBOR®2000, a steel that belongs to the new generation of Ultra-High-Strength Steels (UHSS). A comparison between the rheological behavior of these two steels was carried out. The results show that USIBOR®2000 steel exhibits greater strength compared to USIBOR®1500 steel. The Arrhenius constitutive model well predicts the flow behavior of both steels.

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Constitutive Model and Flow Behavior of B1500HS High-Strength Steel During the Hot Deformation Process

Cited by 13 publications

References 20 publications

Effect of Welding Speed and Post Quenching on the Microstructure and Mechanical Properties of Laser-Welded B1500HS Joints

Effect of Welding Speed and Post Quenching on the Microstructure and Mechanical Properties of Laser-Welded B1500HS Joints

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

Comparison of Flow Behaviors at High Temperature of Two Press Hardening Boron Steels with Different Hardenability

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