Control of edge breaks during cold mill processing of commercial and drawing quality low-carbon steels

Zhou, Tihe; Zurob, Hatem S.; Zhang, Peng; Kuuskman, Kate; Cho, Sang Hyun; Burella, Dan

doi:10.1080/03019233.2018.1440780

Cited by 8 publications

(3 citation statements)

References 14 publications

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“…In this sample at the upper yield point Lüder bands were observed. This phenomenon was typically observed in low carbon steels [27,28] such as C35 [29]. The yield point phenomenon is not clearly observable in specimens after first and second pass of forging.…”

Section: Mechanical Propertiesmentioning

confidence: 85%

Effect of cold forging on mechanical and corrosion behaviors of carbon steel plate

Esmailzadeh

Mousavi

Esfahani

et al. 2022

International Journal of Pressure Vessels and Piping

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Section: Mechanical Propertiesmentioning

confidence: 85%

Effect of cold forging on mechanical and corrosion behaviors of carbon steel plate

Esmailzadeh

Mousavi

Esfahani

et al. 2022

International Journal of Pressure Vessels and Piping

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“…Generally, the occurrence of Lüders bands in various metallic materials is a problem in the metal forming, e.g., in the bending of steel tubes [1] or during the forming of drawing quality low carbon steel [2]. Therefore, knowledge of the appearance and formation of Lüders bands in different metallic materials is a key point in the research of Lüders bands.…”

Section: Introductionmentioning

confidence: 99%

The Deformation Behavior of Niobium Microalloyed Steel during Lüders Band Formation

Brlić,

Rodič,

Samardžić

et al. 2023

Metals

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In microalloyed steels, plastic instabilities often appear which have been found to be associated with changes in the microstructure. In this paper, research was carried out on the influence of the microstructure in different areas of the deformation zone during the formation of Lüders bands in niobium microalloyed steel. Thermography and digital image correlation during static tensile testing were used to research deformation behavior and the area before and during the formation of the Lüders band. Different local values of temperature changes, i.e., stress changes, and strains in the examined areas during the formation of the Lüders band were determined. The highest values of the temperature changes and strains during the formation of the Lüders band were measured in the area of the initial appearance of the Lüders band. In order to clarify the observed changes, a microstructural analysis, using X-ray diffraction, scanning electron and transmission electron microscopy methods, was used. It was established that the observed temperature, i.e., stress, and strain changes are related to changes in the microstructure. The analyses of changes in the microstructure, arrangement and interaction of dislocations with precipitates revealed significant changes in the movement of dislocations and their interaction with fine niobium-containing precipitates during the formation of Lüders bands. The influence of microstructural parameters on the Lüders band formation in niobium microalloyed steel has been established based on this research.

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“…Mathematical modeling [1] and optimization of process parameters [2] are often used for improving the quality of products as well as reducing costs of the production process for various metallic materials. The appearance of the Lüders bands presents a problem for the product quality during the forming process [3]. Consequently, mathematical modeling was used in order to predict behavior of the Lüders bands during cold deformation of metallic materials [4].…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modeling of the Influence Parameters During Formation and Propagation of the Lüders Bands

et al. 2020

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In this study, an analysis of the influence parameters measured by the static tensile test, thermography and digital image correlation was performed during formation and propagation of the Lüders bands. A new approach to the prediction of stresses, maximum temperature changes and strains during the Lüders band formation and propagation is proposed in this paper. Application of the obtained mathematical models of influence parameters gives a clear insight into the behavior of niobium microalloyed steel at the beginning of the plastic flow, which can improve product quality and reduce costs during the forming of microalloyed steels with the appearance of the Lüders bands. The obtained models of influential parameters during formation and propagation of the Lüders bands have been developed by the regression analysis method. The proposed mathematical models showed low deviations of calculated results ranging from 1.34% to 12.37%.The local stress amounts, important in the forming of microalloyed steels since indicating surface roughness and plastic flow possibilities during the Lüders band propagation, are obtained by the mathematical model. It was found that stress amounts increase during the Lüders band propagation in the area behind the Lüders band front. The difference in stress amount between the start of the Lüders band propagation and advanced Lüders band propagation is 25.53 MPa.

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Control of edge breaks during cold mill processing of commercial and drawing quality low-carbon steels

Cited by 8 publications

References 14 publications

Effect of cold forging on mechanical and corrosion behaviors of carbon steel plate

Effect of cold forging on mechanical and corrosion behaviors of carbon steel plate

The Deformation Behavior of Niobium Microalloyed Steel during Lüders Band Formation

Mathematical Modeling of the Influence Parameters During Formation and Propagation of the Lüders Bands

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