Consequences of deep rolling on the fatigue behavior of steel SAE 1045 at high loading amplitudes

Saalfeld, Stephanie; Oevermann, Torben; Niendorf, Т.; Scholtes, Berthold

doi:10.1016/j.ijfatigue.2018.09.014

Cited by 26 publications

(7 citation statements)

References 6 publications

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“…The relaxation of residual stress was found to be somewhat dependent on the load amplitude. The residual stress relaxation becomes more obvious with the increase of the load amplitude [10,11]. In the first 10 cycles, the residual stress relief was significant.…”

Section: Introductionmentioning

confidence: 95%

“…An increase in mechanical load leads to an increase in the drop amount of microhardness [9]. The change of microhardness is disordered when the number of cycles is small and then increases with the increase of the number of cycles [11]. The dynamic recrystallization in AZ31B magnesium alloy during tension-stretch cyclic loading results in a rapid reduction of equiaxed grains at 5000 cycles [16].…”

Section: Introductionmentioning

confidence: 99%

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Study on the Changing Law of Cutting and Ultrasonic Strengthening Surface Integrity during Fatigue of Ti-17 Alloy

et al. 2022

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The distribution of surface integrity features directly affects the initiation and propagation of fatigue cracks. In this paper, the surface integrity characteristics changing law of turning and ultrasonic impacting specimens during high cycle fatigue loading has been studied, and the effect of surface modified layer on the fatigue properties of titanium alloy has been revealed. The results showed that the surface roughness increased with the increase of fatigue cycles. The compressive residual stress and its gradient distribution depth decreased continuously. The gradient distribution depth of residual stress in the ultrasonic-impacted surface rapidly decreased by about 50% near the fracture stage. Local cyclic hardening occurred at 20–50 μm from the surface of the specimen in the early stage of fatigue evolution, and then the microhardness continued to decrease. During this process, there were no significant changes in hardened layer depth. The fibrous microstructure of the ultrasonic-impacted surface undergoes a process from coarsening to gradual disintegration during the fatigue process. Its attenuation process needs a longer period of time. The fatigue source of the turned specimen was located at about 320 μm from the surface, and the fatigue source of ultrasonic impact was about 610 μm from the surface. The fatigue striation width of the ultrasonic impact specimen was about 20% narrower than that of the turned specimen. The fatigue life of the ultrasonic impact specimen was increased by 73.9% compared with the turned specimen. The research in this paper is of great significance for exploring the anti-fatigue mechanism and the ability of various surface integrity features.

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Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Study on the Changing Law of Cutting and Ultrasonic Strengthening Surface Integrity during Fatigue of Ti-17 Alloy

et al. 2022

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“…Coatings 2019, 9, x FOR PEER REVIEW 3 of 11 phenomenon can be produced [21,22], and residual compressive stress can be introduced on the workpiece surface [23], which can prevent the occurrence of fatigue failure and improve the fatigue strength and fatigue life of the workpiece [24,25].…”

Section: Rolling Equipmentmentioning

confidence: 99%

“…Coatings 2020, 10, 611 3 of 11 the same time, subgrains of the rolling layer are refined to form gradient nanocrystalline layer [17][18][19]. After rolling, the roughness of the workpiece surface can be reduced [20], the work hardening phenomenon can be produced [21,22], and residual compressive stress can be introduced on the workpiece surface [23], which can prevent the occurrence of fatigue failure and improve the fatigue strength and fatigue life of the workpiece [24,25].…”

Section: Introductionmentioning

confidence: 99%

Research on Mechanical Properties of 210Cr12 Shaft Surface Processed with Rolling

Qiao

Chen

et al. 2020

Coatings

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The rolling process is one of the most effective ways for strengthening a part’s surface. As the press force exerted on specimen in rolling process, material in the surface layer will deform plastically if the press force is sufficient. That might result in grain refinement, dislocation configuration change, or phase change in specimen surface layer material. Consequently, the surface material mechanical properties can be changed. The effects of rolling parameters on surface residual stress, micro-hardness, and surface roughness for a 210Cr12 shaft have been investigated. After the rolling process, the surface residual stress of the specimen changes from tensile stress to compressive stress, and a stable residual compressive stress layer is formed. The maximum absolute value of compressive stress can be up to 216MPa. With the increase of the value of contact stress exerted on shaft surface and the number of rolling cycles, the absolute value of residual compressive stress increases firstly and then becomes stable. With the increase of depth from shaft surface to interior, the absolute value of residual compressive stress increases initially, then decreases and disappears finally. The maximum absolute value of residual compressive stress exists at the position beneath specimen surface about 0.025mm. The depth of residual stress layer is about 0.2 mm. Research results indicate that shaft surface microhardness can be improved within small range, surface roughness can be reduced up to 67%.

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“…One of the MSE methods, deep cold rolling (DCR), is getting attention nowadays as it is a fast, chipless, and economical surface enhancement method applicable to prevailing conventional or computer numerical control (CNC) machine tools. Further producing a deep layer of compression and nanocrystalline microstructure on the surface of samples, it also can lessen the surface roughness of materials and enhance the fatigue life of engineering components without affecting their bulk properties (Ref [22][23][24][25][26][27][28][29][30][31][32][33][34]. There are numerous parameters to be considered, and the effects of each of these parameters are dependent on other variables.…”

Section: Introductionmentioning

confidence: 99%

Surface Properties and Corrosion Behavior of Turn-Assisted Deep-Cold-Rolled AISI 4140 Steel

Prabhu

Sharma

et al. 2020

J. of Materi Eng and Perform

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In this research, the effect of various turn-assisted deep-cold-rolling process parameters on the residual stress, microstructure, surface hardness, surface finish, and corrosion behavior of AISI 4140 steel has been investigated. The examination of the surface morphology of the turned and processed samples was performed by using a scanning electron microscope, energy-dispersive spectroscopy, and atomic force microscopy. Response surface methodology and desirability function approach were used for reducing the number of experiments and finding local optimized conditions for parameters under the study. The results from the residual stress measurements indicate that the rolling force has the highest effect by generating a deeper layer of residual compressive stress. The outcomes of surface hardness and surface finish emphasize that rolling force and number of tool passes are the most significant parameters affecting the responses. Surface studies confirmed the corrosion and its intensity onto the metal surface, and according to atomic force microscopy studies, the surface had become remarkably rough after exposure to the corrosive medium. Improvements in surface microhardness from 225 to 305.8 HV, the surface finish from 4.84 down to 0.261 μm, and corrosion rate from 6.672 down to 3.516 mpy are observed for a specific set of parameters by turn-assisted deep-cold-rolling process. The multiresponse optimization for surface finish and corrosion rate together shows that a ball diameter of 10 mm, a rolling force of 325.75 N, initial roughness of 4.84 µm, and number of tool passes of 3 give better values for the two responses under consideration with composite desirability of 0.9939. Based on the experimental work at the optimum parameter setting, the absolute average error between the experimental and predicted values for the corrosion rate is calculated as 3.2%.

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Consequences of deep rolling on the fatigue behavior of steel SAE 1045 at high loading amplitudes

Cited by 26 publications

References 6 publications

Study on the Changing Law of Cutting and Ultrasonic Strengthening Surface Integrity during Fatigue of Ti-17 Alloy

Study on the Changing Law of Cutting and Ultrasonic Strengthening Surface Integrity during Fatigue of Ti-17 Alloy

Research on Mechanical Properties of 210Cr12 Shaft Surface Processed with Rolling

Surface Properties and Corrosion Behavior of Turn-Assisted Deep-Cold-Rolled AISI 4140 Steel

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