DP590 GI Mechanical Property Variability and Structural Response CAE Studies

Sohmshetty, Raj; Ramachandra, Rakshit; Alavandi, Bhimaraddi; Xia, Zhihong

doi:10.4271/2009-01-0799

Cited by 5 publications

(2 citation statements)

References 2 publications

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“…However, the microstructure and properties of DP steel from different production lines may be inconsistent due to different chemistries and manufacturing processes applied. The inconsistency of material characteristics brings negative impacts on the application of DP steel . Therefore, a quantitative study on the relationship between the manufacturing processes and the microstructure, as well as the mechanical properties is significant to promote the application of DP steel.…”

Section: Introductionmentioning

confidence: 99%

Effects of Continuous Annealing Process Parameters on the Microstructure and Mechanical Properties of Dual Phase Steel

Kong¹,

Zhang²,

Li³

et al. 2018

steel research int.

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Due to the difference in chemistries and manufacturing processes applied, the microstructure and mechanical properties of DP780 steel produced by different production lines may be inconsistent. Annealing experiments are designed and carried out in the laboratory based on the actual industrial production process in order to investigate the effects of continuous annealing process parameters on the microstructure and mechanical properties of DP steel quantitatively. The results show that the effect of intercritical temperature is continuous while the sensitive interval and non-sensitive interval should be considered in terms of the effect of slow cooling temperature, over-aging temperature, and strip speed. The influence degree is defined to quantitatively compare the effects of the influencing factors, which find that the over-aging temperature has the most influential effect on the tensile strength while the effect of the slow cooling temperature ranks second and the intercritical temperature has a minimal impact. The influence degrees on elongation of all the three factors are similar. The results from this study are helpful to efficiently adjust the microstructure and mechanical properties of DP steel.

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Section: Introductionmentioning

confidence: 99%

Effects of Continuous Annealing Process Parameters on the Microstructure and Mechanical Properties of Dual Phase Steel

Kong¹,

Zhang²,

Li³

et al. 2018

steel research int.

View full text Add to dashboard Cite

show abstract

“…However, the chemical compositions and microstructures of DP steels from different production lines is inconsistent due to different manufacturing processes, which results in the different mechanical properties and bring negative impacts on the application of DP steels. [3][4][5][6][7][8][9] The mechanical properties of DP steel depend on the carbon content, the martensite volume fraction, the distribution, and morphology of martensite as well as the ferrite grain size. [10][11][12][13] Kalhor et al [14] and Karmakar et al [15] found that the changes in the initial microstructure had significant effects on the final microstructure and mechanical properties of DP steel.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Effects of Chemical Composition and Microstructure Inconsistencies on Mechanical Properties of Dual‐Phase Steel

Kong

Zhang

et al. 2018

steel research int.

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The chemical composition and microstructure of dual‐phase steels from different production lines are inconsistent due to different manufacturing processes. It is responsible for the mechanical properties differences and brings negative impacts on the applications of DP steel during deformation. In this study, the chemical compositions, martensite volume fraction, and ferrite grain average diameter are investigated by the tests with DP780 steels from different production lines. The finite element models are established based on the microstructures of DP780 steels. Different mechanical properties of DP780 steels with various chemical compositions and microstructures are investigated on the stress–strain relationship and elongation by means of finite element simulation. A novel method with the failure element ratio as an indicator is proposed to evaluate the elongation of DP780 steel based on the micro‐mechanism of tensile fracture. The quantitative effects are obtained separately in the forms of carbon content, martensite volume fraction, and ferrite grain average diameter on the mechanical properties of DP780 steel. It is suggested that the detailed chemical compositions and microstructures should be specified for the criterion of mechanical performance of DP steels.

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Deep drawing and bulging forming limit of dual-phase steel under different mechanical properties

Kong

Zhang

Kong

2018

Int J Adv Manuf Technol

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DP590 GI Mechanical Property Variability and Structural Response CAE Studies

Cited by 5 publications

References 2 publications

Effects of Continuous Annealing Process Parameters on the Microstructure and Mechanical Properties of Dual Phase Steel

Effects of Continuous Annealing Process Parameters on the Microstructure and Mechanical Properties of Dual Phase Steel

Numerical Study on the Effects of Chemical Composition and Microstructure Inconsistencies on Mechanical Properties of Dual‐Phase Steel

Deep drawing and bulging forming limit of dual-phase steel under different mechanical properties

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