Ultrasonic shot peening of 316L stainless steel – Experimental and analytical approach

Bisen, Nehaar S.; Sivasubramanian, J.; Basu, A.

doi:10.1016/j.matpr.2023.03.751

Cited by 3 publications

(1 citation statement)

References 23 publications

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“…Furthermore, through SP, the grains of the material are refined [ 10 , 12 ]. Grain refinement results in an increase in hardness according to the Hall–Petch relationship [ 24 ], where the microhardness of the material increases with a finer grain size [ 25 , 26 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of Shot Peening on the Strength and Corrosion Properties of 6082-T651 Aluminium Alloy

2023

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This paper investigated the effect of shot peening on the strength and corrosion properties of 6082-T651 aluminium alloy. The microstructure, surface roughness, microhardness, residual stresses, and corrosion behaviour were investigated and compared with those of untreated aluminium alloy. Cracks and delaminations in the surface layer could only be seen on the treated specimens at a working pressure of 4 bar and 8 bar, while no such effect was observed at a working pressure of 1.6 bar. The surface roughness was increased more than 15 times after shot peening at a working pressure of 8 bar. Shot peening resulted in an increase in microhardness of 27% and a deeper layer with higher compressive residual stresses compared to the untreated specimens. All treated specimens exhibited improved corrosion resistance with a lower degree of anodic dissolution. The current density of the treated specimen with the lowest surface roughness was more than two-fold lower than that of the untreated specimen.

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Section: Resultsmentioning

confidence: 99%

Effect of Shot Peening on the Strength and Corrosion Properties of 6082-T651 Aluminium Alloy

2023

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Optimization of shot-peening parameters for steel AISI 316L via response surface methodology (RSM): introducing two novel mechanical aspects

Ebrahimzadeh,

Martínez,

Pariente

et al. 2024

Int J Adv Manuf Technol

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The study explores the application of shot-peening (SP) on AISI 316L stainless steel to enhance mechanical properties. It focuses on optimizing SP parameters—coverage percentage (C) ranging from 100 to 4500% and shot velocity (P) between 1.5 and 6 bar while other SP factors were maintained constant—using response surface methodology (RSM) entails creating a mathematical model to analyze data accurately. This model explores interactions among initial configurations to optimize mechanical properties and enhance the performance of the current steel after the SP surface treatment. These properties evaluated include cumulative compressive residual stress (CCRS), cumulative full-width at half-maximum (CFWHM) newfangled factors for researchers to analyze, austenite transformation to martensite, micro-hardness, and surface roughness. Through the RSM model, increasing P leads to an increase in all response values in each one, except for microhardness, which registers a minor decrease from 1.5 to 6 bar. Elevating C promotes responses, excluding roughness, decreasing until 2300% and reaching its minimum. At 4500% C, roughness peaks, exceeding the initial amount at 100% C. In the optimization section, it seeks a passable value for each parameter. Desired responses involve maximizing CCRS, CFWHM, and micro-hardness while minimizing martensite and roughness. For interactions in all responses, at P = 6 bar and C = 1860%, values for each response were CCRS = 218 (MPa.mm), CFWHM = 0.6871 (°.mm), micro-hardness = 394 (HV), martensite conversion = 48 (%), and roughness = 5.45 (µm). Response reassessment in the real tests by comparison RSM model in optimal points showed a minimum error of 4.05 for roughness and a maximum error of 12.09 for CCRS. Other responses contained errors between this spectrum.

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Formation of functionally graded steel by laser powder bed fusion via in-situ carbon doping

Sperry,

Nelson,

Crane

2024

Journal of Manufacturing Processes

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Ultrasonic shot peening of 316L stainless steel – Experimental and analytical approach

Cited by 3 publications

References 23 publications

Effect of Shot Peening on the Strength and Corrosion Properties of 6082-T651 Aluminium Alloy

Effect of Shot Peening on the Strength and Corrosion Properties of 6082-T651 Aluminium Alloy

Optimization of shot-peening parameters for steel AISI 316L via response surface methodology (RSM): introducing two novel mechanical aspects

Formation of functionally graded steel by laser powder bed fusion via in-situ carbon doping

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