Analysis of Microstructure Effects on Edge Crack of Thin Strip During Cold Rolling

Xie, Haibo; Jiang, Zhengyi; Yuen, W. Y. D.

doi:10.1007/s11663-011-9540-3

Cited by 17 publications

(9 citation statements)

References 27 publications

(37 reference statements)

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“…The formation of edge cracks is complex, which depends not only on the microscopic factors, such as grain size, surface roughness, and chemical compositions [16][17][18], but also on the operating conditions, such as reduction ratio, friction coefficient, tension, edge trimming, roll bending, and heat treatment [19][20][21][22][23]. In present work, four factors, reduction ratio, tension, work roll diameter, and friction coefficient, were taken into account which were considered to be the parameters having great effect on edge cracks in the industrial manufacture.…”

Section: Methodsmentioning

confidence: 99%

Effect of Processing Parameters on Edge Cracking in Cold Rolling

Yan

Sun

Chen

et al. 2013

Materials and Manufacturing Processes

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Experimental and numerical investigations have been carried out to study the effect of processing parameters on edge cracks in cold rolling process of silicon steels. The onset of edge cracks has been simulated by using finite element method (FEM) based on the GursonTvergaard-Needleman damage model. Factorial design and Taguchi experimental design methods have been proposed to analyze the effects of reduction ratio, tension, work roll diameter, and friction coefficient on the formation of edge cracks. Parametric studies indicated that with the increasing of reduction ratio, friction coefficient, and tension, the crack length increases. A bigger work roll is beneficial to restrict the edge crack growth as well. The rank according to the impact degrees on the crack initiation from high to low is reduction ratio, tension, work roll diameter, and friction coefficient. Meanwhile, the combined effect curve of reduction ratio and tension on crack length was obtained which was validated by the experimental results as well.

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Section: Methodsmentioning

confidence: 99%

Effect of Processing Parameters on Edge Cracking in Cold Rolling

Yan

Sun

Chen

et al. 2013

Materials and Manufacturing Processes

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“…The material with fine grains has a more grain boundary to hinder dislocation movement. But more grain boundaries store more energy, which makes the material more possible to be corroded [7,8]. Appropriate annealing can eliminate internal stress and distortion energy at grain boundary.…”

Section: Introductionmentioning

confidence: 99%

Effect of annealing temperature on corrosion properties of rolled AZ31-Ce magnesium alloy

Ning

Kong

2020

SN Appl. Sci.

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The corrosion properties of rolled AZ31 magnesium alloy addition Ce before and after annealing at different rolling temperatures (200 °C, 250 °C, 300 °C and 350 °C) and the corrosion resistance and surface morphology of different sections of the samples were studied. The results showed that the corrosion rate and weight loss of the plate without annealing were higher than that of the plate after annealing. The corrosion resistance of the transverse direction-normal direction (TD-ND) cross section was the most, and the corrosion pits after annealing were shallower than that of unannealed samples. The low Ce element content can improve the corrosion resistance of magnesium alloy. In addition, the above properties were the best at 200 °C whether annealed or not. Fig. 8 a Area percentage after corroded of each cross section at different temperatures, b schematic diagram of grain size and morphology with different cross sections

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“…In the industrial continuous casting (CC) process, the probability of surface cracking is high, which not only affects the quality of the product and the rhythm of production, but also increases the production cost of steel [1,2]. The presence of cracks seriously affects the material properties such as strength, hardness, ductility and toughness.…”

Section: Introductionmentioning

confidence: 99%

Study on Surface Longitudinal Crack Formation of Typical Hypoeutectoid Steel Produced on a Caster with Billet and Slab

Lü

Wang

Guo

et al. 2019

Metals

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This paper investigates the formation mechanism of typical hypoeutectoid steel with longitudinal cracks produced on a caster with billet and slab. It was found that the microstructure of the proeutectoid ferrite is the most critical factor affecting the longitudinal crack. The formation conditions of the proeutectoid ferrite and the reasonable control direction were determined through experiments and calculations. High-temperature tensile experiments revealed that enhanced cooling did not cause additional cracks. Therefore, the final plan was to reduce the formation of proeutectoid ferrite by strengthening the cooling process. As a result, the optimized surface temperature quickly passed the phase transition region of the proeutectoid ferrite and no cracks were found in the optimized billet.

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Analysis of Microstructure Effects on Edge Crack of Thin Strip During Cold Rolling

Cited by 17 publications

References 27 publications

Effect of Processing Parameters on Edge Cracking in Cold Rolling

Effect of Processing Parameters on Edge Cracking in Cold Rolling

Effect of annealing temperature on corrosion properties of rolled AZ31-Ce magnesium alloy

Study on Surface Longitudinal Crack Formation of Typical Hypoeutectoid Steel Produced on a Caster with Billet and Slab

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