Numerical modeling and experimental verification of surface roughness of 12Cr2Ni4A alloy steel generated by shot peening

Liu, Huaming; Dong, Heng; Tang, Jinyuan; Ding, Han; Shao, Wen; Zhao, Jibin; Jiang, Tianxing

doi:10.1016/j.surfcoat.2021.127538

Cited by 25 publications

(9 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This phenomenon can also be found during the shot peening. [40][41][42] At the same time, it is observed that surface roughness Sa and Sq rise steadily with the growth of particle diameter. This is basically consistent with the strengthening results of conventional shot peening.…”

Section: Effect Of Process Parameters Of Fine Particle Peening On Sur...mentioning

confidence: 99%

The effect of fine particle peening on aviation gear performance, Part I: Surface integrity

Zhang,

Liu,

et al. 2024

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

As a fundamental component of aviation equipment, the gear has an essential effect on the service performance of the whole machine. Fine particle peening (FPP) technology is a good choice for the precision requirements of aviation gears. Therefore, a FPP model of aviation gears was constructed based on the discrete element‐finite element coupling method (DEM‐FEM) to simulate the evolution of surface roughness and residual compressive stress, and its results were verified by experiments. The effects of FPP intensity, coverage rate, and particle diameter on surface integrity were investigated. In addition, the importance degree of the intensity, coverage rate, and particle diameter of FPP on surface integrity was carried out by the random forest decision method. It demonstrates that the surface roughness Sa was mainly influenced by the FPP intensity and particle diameter. And the distribution state of the residual compressive stress was mainly affected by the particle diameter.

show abstract

Section: Effect Of Process Parameters Of Fine Particle Peening On Sur...mentioning

confidence: 99%

The effect of fine particle peening on aviation gear performance, Part I: Surface integrity

Zhang,

Liu,

et al. 2024

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

“…Numerical simulations of the shot peening process have evolved through stages involving single shot [7,8], multiple shots [9][10][11], SPH [12], and DEM models [13][14][15], with the accuracy of CRS prediction gradually meeting the engineering requirements. However, shot peening inevitably leads to increased target surface roughness [16], which may damage the surface integrity.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation for investigating the impact of shot peening process parameters via surface reconstruction

Cao,

Niu,

Gai

et al. 2023

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Shot peening is one of the most widely used surface strengthening processes. The shot peening process involves multiple process parameters, which have a complex and interdependent impact on the peening effects, including compressive residual stress distribution and surface roughness. Accurately predicting the influence of shot peening parameters on the shot peening effect is a tough challenge in the simulation. In this paper, a shot peening simulation model is developed to investigate the influence of peening process parameters. The model encompasses material, target surface, and shot stream modeling. A method is proposed to reconstruct target surface model based on real rough surface data obtained via confocal laser scanning microscope. Unlike similar surface models, such as the Gaussian model, the reconstructed surface model replicates the peaks and valleys of the target surface along with their exact locations. A random multiple-shot model incorporating the reconstructed surface with predefined target coverage is developed via Python in Abaqus. Experimental verification on TC4 titanium alloy targets validates the simulation accuracy. The effects of peening parameters (shot velocity, density, diameter, and initial surface roughness) on residual stress distribution and surface roughness are investigated via the established model. Results reveal the significant influence of shot velocity and the relatively minor impact of other parameters. Increasing the diameter, velocity, and density of the shots result in higher residual stress levels and surface roughness. Notably, excessive initial surface roughness leads to abnormal increases in surface compressive residual stress.

show abstract

“…So far, mechanical strengthening techniques, such as shot peening (SP) [29,30] and rolling finishing [31,32] have been proposed extensively for corrosion resistance investigation of metals. However, traditional shoot peening typically produces a high roughness on the metal surface, and the protection ability is still far from the practical demands [33]. On the other hand, the hardened layer produced by rolling and the internal material have an obvious delamination phenomenon [34], which easily causes the surface layer to fall off.…”

Section: Introductionmentioning

confidence: 99%

Salt-Fog Corrosion Behavior of GCr15 Steels Treated by Ultrasonic Strengthening Grinding Process

et al. 2022

View full text Add to dashboard Cite

In this paper, the corrosion resistance of four GCr15 steel samples has been investigated. Three samples were initially surface-treated by ultrasonic shot peening (USP), a dry ultrasonic strengthening grinding process (DUSGP), and a wet ultrasonic strengthening grinding process (WUSGP), respectively, while another one was only polished. Then, all the processed samples were subjected to salt spray corrosion. Sample properties, such as capacitance arc, self-corrosion potential (Ecorr), self-corrosion current density (Icorr), corrosion morphology, and corrosion products were analyzed. Results show that the sample treated by WUSGP has the best corrosion resistance, which can be attributed to the high dislocation density, small grain size, needle-like and lath-like shape of martensite content formed in the treatment, which hinders Cl− from eroding the matrix. The obtained corrosion pits and cracks in Sample WUSGP show a width of approximately 1.4 µm and 2.1 µm, respectively, degrading 78% and 75% compared to polishing. The possible corrosion mechanism of the samples has been discussed. The findings denote that the treatment fused ceramic balls, strengthened liquid, and corundum in USP could be an efficient method to improve the corrosion resistance of some mechanical parts.

show abstract

Numerical modeling and experimental verification of surface roughness of 12Cr2Ni4A alloy steel generated by shot peening

Cited by 25 publications

References 34 publications

The effect of fine particle peening on aviation gear performance, Part I: Surface integrity

The effect of fine particle peening on aviation gear performance, Part I: Surface integrity

Numerical simulation for investigating the impact of shot peening process parameters via surface reconstruction

Salt-Fog Corrosion Behavior of GCr15 Steels Treated by Ultrasonic Strengthening Grinding Process

Contact Info

Product

Resources

About