The effect of shot peening parameters and hydroxyapatite coating on surface properties and corrosion behavior of medical grade AISI 316L stainless steel

Ahmed, Aymen A.; Mhaede, Mansour; Basha, M.M.; Wollmann, Manfred; Wagner, Lothar

doi:10.1016/j.surfcoat.2015.09.026

Cited by 60 publications

(36 citation statements)

References 56 publications

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“…24) parameters, more chipping and higher roughness values were observed with increasing shot-peening intensity. 26) Similar findings are also reported by Wang. 27) The reason of these can be explained as follows: with the same other parameters, higher shot-peening intensity means higher collapse energy of ceric ball resulting in expanding plastic deformation and deep indention.…”

Section: Methodssupporting

confidence: 81%

Improving Corrosion Resistance Properties of Nickel-Aluminum Bronze (NAB) Alloys via Shot Peening Treatment

Zhao

Zhang

et al. 2019

Mater. Trans.

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In this paper, Nickel-Aluminum Bronze (NAB) alloy was subjected to the shot-peening (SP) treatment, and the corrosion resistance properties of SPed NAB alloy was systematically studied by scanning electron microscope, transmission electron microscopy, electrochemical workstation and immersion tests. The results show that SP treatment can improve the corrosion resistance properties of NAB alloy by controlling shot peening intensity. The SP treatment can result in rough surfaces, high-density dislocations and grain refinement of ¡ and ¢A martensitic phases in NAB alloy surface. In the corrosion medium, the corrosion resistance properties of SPed NAB alloys are related to not only the surface microstructures but also the surface roughness. The refined and homogenized microstructures favors the rapid formation of the protective passive film and promotes the occurrence of uniform corrosion on shot-peened NAB alloy surface, thus significantly improving their corrosion resistance properties. However, as the shot-peening intensity exceeds a critical value, the higher roughness values due to the large cracks, chips and flaking appearing on the shot-peened sample surface can deteriorate corrosion resistance properties.

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Section: Methodssupporting

confidence: 81%

Improving Corrosion Resistance Properties of Nickel-Aluminum Bronze (NAB) Alloys via Shot Peening Treatment

Zhao

Zhang

et al. 2019

Mater. Trans.

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“…To improve the fatigue properties of stainless steel in order to be able to use it for medical implants, the effect of shot peening on the fatigue properties has been investigated by examining the corrosion behavior in Ringer's solution [6]. The effect of the shot peening conditions on the surface properties and the corrosion behavior of medical grade 316L stainless steel has also been examined [7]. Moreover, the effect of the surface roughness of shot peened stainless steel 316L has been investigated for the purpose of modulating the interaction between the biological environment and the material [8].…”

Section: Introductionmentioning

confidence: 99%

Comparison between Shot Peening, Cavitation Peening, and Laser Peening by Observation of Crack Initiation and Crack Growth in Stainless Steel

Soyama

2019

Metals

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The traditional technique used to modify the surface of a metallic material is shot peening; however, cavitation peening, a more recent technique in which shot is not used, was developed, and improvements in the fatigue strength of metallic materials were demonstrated. In order to compare the fatigue properties introduced by shot peening with those introduced by cavitation peening, crack initiation and crack growth in specimens of austenitic stainless steel (Japanese Industrial Standards JIS SUS316L) treated using these techniques were investigated. With conventional cavitation peening, cavitation is produced by injecting a high speed water jet into water. In the case of submerged laser peening, bubbles are generated using a pulsed laser after laser ablation, and the impact produced when the bubbles collapse is larger than that due to laser ablation. Thus, in this study, cavitation peening using a water jet and submerged laser peening were investigated. To clarify the mechanisms whereby the fatigue strength is improved by these peening techniques, crack initiation and crack growth in specimens with and without treatment were examined by means of a K-decreasing test, where K is the stress intensity factor, and using a constant applied stress test using a load controlled plane bending fatigue tester. It was found that the improvement in crack initiation and the reduction in crack growth were roughly in a linear relationship, even though the specimens were treated using different peening methods. The results presented here show that the fatigue strength of SUS316L treated by these peening techniques is closely related to the reduction in crack growth, rather than crack initiation.

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“…Ahmed et.al. [10] investigated the influence of the shot peening parameters on the hardness, residual stresses, and surface roughness. Jebahi et.al.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of High Peening Coverage on Almen Intensity and Residual Compressive Stress

Yang

Lee

et al. 2019

Applied Sciences

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The effectiveness of shot peening is mainly determined by the peening coverage. The peening coverage is required to be 100% for current technical standards of shot peening. With the increase of material strength, higher peening coverage is required in shot peening process. However, the influence of high peening coverage on Almen intensity and residual compressive stress is unclear, the difficulty mainly lies in the lack of quantitative description of peening coverage in finite element analysis. To analyze the influence of high peening coverage on Almen intensity and residual compressive stress, firstly an approximate quantitative description of peening coverage based on dent size, the distance of shots and shot numbers is proposed in this study. Based on this quantitative description of peening coverage, the arc height and residual stress of the Almen test are simulated with the finite element method. The simulation results of arc height and saturation curve agree well with that of the Almen test, by which the effectiveness of the quantitative description and FE simulation are proved. The further study indicates that in shot peening processes, the excessive peening coverage doesn't improve Almen intensity and residual compressive stress.

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The effect of shot peening parameters and hydroxyapatite coating on surface properties and corrosion behavior of medical grade AISI 316L stainless steel

Cited by 60 publications

References 56 publications

Improving Corrosion Resistance Properties of Nickel-Aluminum Bronze (NAB) Alloys via Shot Peening Treatment

Improving Corrosion Resistance Properties of Nickel-Aluminum Bronze (NAB) Alloys via Shot Peening Treatment

Comparison between Shot Peening, Cavitation Peening, and Laser Peening by Observation of Crack Initiation and Crack Growth in Stainless Steel

Analysis of the Influence of High Peening Coverage on Almen Intensity and Residual Compressive Stress

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