Effect of Pre-strain on Surface Roughening and Frictional Behavior of DP590 High-Strength Steel

Dong, Wenzheng; Wang, Di; Wang, Zhigang; Lin, Qiquan

doi:10.1007/s11665-022-07491-z

Cited by 2 publications

(1 citation statement)

References 26 publications

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“…Research on surface roughening has been performed for many metals, including pure aluminum and aluminum alloys [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ], titanium [ 23 ], steel [ 22 , 24 , 25 ], copper [ 26 , 27 , 28 ], nickel [ 29 ], tantalum [ 30 ], magnesium [ 31 , 32 ] and others. The most common testing technique is the uniaxial tension test [ 5 , 16 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Deformation-Induced Surface Roughening of an Aluminum–Magnesium Alloy: Experimental Characterization and Crystal Plasticity Modeling

et al. 2023

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The deformation-induced surface roughening of an Al-Mg alloy is analyzed using a combination of experiments and modeling. A mesoscale oligocrystal of AA5052-O, obtained by recrystallization annealing and subsequent thickness reduction by machining, that contains approx. 40 grains is subjected to uniaxial tension. The specimen contains one layer of grains through the thickness. A laser confocal microscope is used to measure the surface topography of the deformed specimen. A finite element model with realistic (non-columnar) shapes of the grains based on a pair of Electron Back-Scatter Diffraction (EBSD) scans of a given specimen is constructed using a custom-developed shape interpolation procedure. A Crystal Plasticity Finite Element (CPFE) framework is then applied to the voxel model of the tension test of the oligocrystal. The unknown material parameters are determined inversely using an efficient, custom-built optimizer. Predictions of the deformed shape of the specimen, surface topography, evolution of the average roughness with straining and texture evolution are compared to experiments. The model reproduces the averaged features of the problem, while missing some local details. As an additional verification of the CPFE model, the statistics of surface roughening are analyzed by simulating uniaxial tension of an AA5052-O polycrystal and comparing it to experiments. The averaged predictions are found to be in good agreement with the experimentally observed trends. Finally, using the same polycrystalline specimen, texture–morphology relations are discovered, using a symbolic Monte Carlo approach. Simple relations between the Schmid factor and roughness can be inferred purely from the experiments. Novelties of this work include: realistic 3D shapes of the grains; efficient and accurate identification of material parameters instead of manual tuning; a fully analytical Jacobian for the crystal plasticity model with quadratic convergence; novel texture–morphology relations for polycrystal.

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Section: Introductionmentioning

confidence: 99%

Deformation-Induced Surface Roughening of an Aluminum–Magnesium Alloy: Experimental Characterization and Crystal Plasticity Modeling

et al. 2023

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Analysis and Prospects of Lubrication and Friction Characteristics in Cold Strip Rolling: A Review

Jin,

Li,

Gao

et al. 2024

steel research int.

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Lubrication and friction are the core processes in cold strip rolling, which are the key links to realizing the stable production of high‐quality strips, reflecting country advanced level in rolling technology. This review investigates the crucial properties of lubrication and friction in cold strip rolling by analyzing the mechanism, characterization methods, and influencing factors. The lubricant forms an oil film on the surface of rolls and strips based on the lubrication dynamics and tribology theory, changing the asperity contact state in the loaded roll gap, leading to changes in friction characteristics. Oil film thickness and coefficient of friction (COF) are crucial parameters for characterizing and judging the characteristics of lubrication and friction, theoretical calculations have become the core analytical method, and the study of the measurement method is still a great challenge. Parameters like rolling speed and oil viscosity affect the lubricant distribution and asperity contact in the loaded roll gap, changing the lubrication and friction state. The influence of parameters is strongly linked to the experimental or rolling environment. Prospective research trends on lubrication and friction in cold strip rolling are presented based on the status of research on lubrication and friction characterization.

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Effect of Pre-strain on Surface Roughening and Frictional Behavior of DP590 High-Strength Steel

Cited by 2 publications

References 26 publications

Deformation-Induced Surface Roughening of an Aluminum–Magnesium Alloy: Experimental Characterization and Crystal Plasticity Modeling

Deformation-Induced Surface Roughening of an Aluminum–Magnesium Alloy: Experimental Characterization and Crystal Plasticity Modeling

Analysis and Prospects of Lubrication and Friction Characteristics in Cold Strip Rolling: A Review

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