Contribution to mechanical metallurgy behaviour of steel during continuous casting

Jonšta, Zdeněk; Hernas, A.; Mazanec, Karel

doi:10.1016/s0924-0136(97)00468-8

Cited by 7 publications

(9 citation statements)

References 7 publications

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“…Many researchers have studied the high temperature physical properties of carbon steel to predict stresses arising in continuous casting. For this purpose, tensile tests were conducted under either non‐melting or remelting thermal histories 7–10. Some researchers reported that the non‐melting type thermal history was superior to investigate various kinds of cast structures which were sampled from a CC slab 11, while the remelting type was preferred by others to avoid the influence of the reheating process 12, 13.…”

Section: Introductionmentioning

confidence: 99%

“…Various material models of steel at high temperature have been analysed in previous studies 14, 15, placing emphasis on the continuous casting process. It has been reported that there is an influence of the strain rate on the behaviour of steel at elevated temperature 10, 16. Therefore, considering the wide range of strain rates involved in continuous casting, it is the rate‐dependent viscoplastic models which are appropriate to analyse the relationship between the non‐melting and remelting thermal histories in the mushy zone.…”

Section: Introductionmentioning

confidence: 99%

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High Temperature Mechanical Properties of Micro‐alloyed Carbon Steel in the Mushy Zone

Guo

Bobadilla

et al. 2010

steel research int.

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The tensile strength of a micro‐alloyed carbon steel in the mushy zone is investigated as well as the influence of temperature, strain rate and thermal histories. The parameters varied comprised thermal histories of both solidifying and reheating type and strain rates from 1 × 10−4 to 1 × 10−2 s−1 were tested using the physical simulation system Gleeble‐1500D. The measured results showed that tensile strength decreased with increasing test temperature in the mushy zone. The tensile strength with solidified type thermal history was lower than that with the reheated type, and the difference of tensile strength derived from the two thermal histories decreased with increasing cooling rate and increasing temperature. The tensile strength decreased with decreasing strain rate in the mushy zone. A viscoplastic constitutive equation with variables of deformation temperature, stress, strain rate, solid fraction and deformation activation energy was constructed. Moreover, the measured thermo‐mechanical parameters, such as zero strength temperature (ZST) and zero ductility temperature (ZDT), were consistent with those predicted according to the corresponding solid fractions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High Temperature Mechanical Properties of Micro‐alloyed Carbon Steel in the Mushy Zone

Guo

Bobadilla

et al. 2010

steel research int.

View full text Add to dashboard Cite

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“…As reported by Schwerdtfeger, h w has been defined by Schwerdtfeger [6] as Eq. (8). Also, d flux has been defined by Saraswat et al [7] as…”

Section: Mathematical Modelingmentioning

confidence: 99%

“…e TH can be expressed as sum of the strains generated during the cooling process and phase transformation of d/g at the various range of weight percent of carbon (C C ) [8]. For a mushy zone in the temperature range of T liq -T sol , the term of e TH can be written as follows: …”

Section: Mathematical Modelingmentioning

confidence: 99%

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Correlation between the continuous casting parameters and secondary dendrite arm spacing in the mold region

Alizadeh¹

2013

Materials Letters

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Hot Temperature Mechanical Behavior of High‐Permeability 6.5 wt% Si Electrical Steel in a Mushy Zone

Zhang

Yuan

et al. 2019

steel research int.

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Twin‐roll strip casting (TRSC) technology is successfully applied to obtain 6.5 wt% Si electrical steel (6.5 wt% Si steel) in a laboratory platform, although there are problems in the strip surface quality control restricting further industrial applications of the TRSC. Hot temperature mechanical behavior in the mushy zone associated with the cracking susceptibility of 6.5 wt% Si steel is studied using the Gleeble‐3800 simulation system in the temperature range of 1350–1435 °C and a strain rate of 3 s−1. The characteristic temperatures including zero strength temperature (ZST) and zero ductility temperature (ZDT) are qualitatively determined, and the hot brittle temperature range in the mushy zone is further confirmed. Results indicate the tensile strength and ductility both increase with decreasing tensile temperature once the solidus fraction reaches a critical value. The ZST and ZDT in the mushy zone are determined to be ≈1427 and ≈1390 °C, respectively, and the hot brittle temperature range is 1390–1427 °C. The critical strain for internal crack generation in the hot brittle temperature range is estimated to be ≈0.24% on the basis of an empirical model developed by Y. M. Won. To reduce the cracking susceptibility of studied 6.5 wt% Si steel under TRSC, a rolling process is prohibited in the temperature range of 1390–1427 °C.

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Contribution to mechanical metallurgy behaviour of steel during continuous casting

Cited by 7 publications

References 7 publications

High Temperature Mechanical Properties of Micro‐alloyed Carbon Steel in the Mushy Zone

High Temperature Mechanical Properties of Micro‐alloyed Carbon Steel in the Mushy Zone

Correlation between the continuous casting parameters and secondary dendrite arm spacing in the mold region

Hot Temperature Mechanical Behavior of High‐Permeability 6.5 wt% Si Electrical Steel in a Mushy Zone

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