1.14 Laser Peening of Metallic Materials

İrizalp, Simge Gençalp; Saklakoğlu, Nurşen

doi:10.1016/b978-0-12-803581-8.09160-8

Cited by 15 publications

(2 citation statements)

References 175 publications

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“…Advantages Improves resistance to fatigue [166] Disadvantages It is not suitable for small surface area [167] 5.1.6. Electrophoretic Deposition Electrophoretic deposition is a method that uses an electric field to move colloidal particles suspended in the electrolyte in order to be deposited onto the substrate.…”

Section: Advantages/disadvantages Referencesmentioning

confidence: 99%

Surface Engineering Strategies to Enhance the In Situ Performance of Medical Devices Including Atomic Scale Engineering

Sultana

Zare

Luo

et al. 2021

IJMS

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Decades of intense scientific research investigations clearly suggest that only a subset of a large number of metals, ceramics, polymers, composites, and nanomaterials are suitable as biomaterials for a growing number of biomedical devices and biomedical uses. However, biomaterials are prone to microbial infection due to Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), Staphylococcus epidermidis (S. epidermidis), hepatitis, tuberculosis, human immunodeficiency virus (HIV), and many more. Hence, a range of surface engineering strategies are devised in order to achieve desired biocompatibility and antimicrobial performance in situ. Surface engineering strategies are a group of techniques that alter or modify the surface properties of the material in order to obtain a product with desired functionalities. There are two categories of surface engineering methods: conventional surface engineering methods (such as coating, bioactive coating, plasma spray coating, hydrothermal, lithography, shot peening, and electrophoretic deposition) and emerging surface engineering methods (laser treatment, robot laser treatment, electrospinning, electrospray, additive manufacturing, and radio frequency magnetron sputtering technique). Atomic-scale engineering, such as chemical vapor deposition, atomic layer etching, plasma immersion ion deposition, and atomic layer deposition, is a subsection of emerging technology that has demonstrated improved control and flexibility at finer length scales than compared to the conventional methods. With the advancements in technologies and the demand for even better control of biomaterial surfaces, research efforts in recent years are aimed at the atomic scale and molecular scale while incorporating functional agents in order to elicit optimal in situ performance. The functional agents include synthetic materials (monolithic ZnO, quaternary ammonium salts, silver nano-clusters, titanium dioxide, and graphene) and natural materials (chitosan, totarol, botanical extracts, and nisin). This review highlights the various strategies of surface engineering of biomaterial including their functional mechanism, applications, and shortcomings. Additionally, this review article emphasizes atomic scale engineering of biomaterials for fabricating antimicrobial biomaterials and explores their challenges.

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Section: Advantages/disadvantages Referencesmentioning

confidence: 99%

Surface Engineering Strategies to Enhance the In Situ Performance of Medical Devices Including Atomic Scale Engineering

Sultana

Zare

Luo

et al. 2021

IJMS

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“…10 / s resulting in permanent microstructural transformations close to the material surface[19,20]. Hence, an appropriate constitute material model needs to be implemented…”

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confidence: 99%

Effect of Laser Shock Peening on Fatigue Life at Stress Raiser Regions of a High-Speed Micro Gas Turbine Shaft: A Simulation Based Study

Pretorius

Desai

Snedden³

2019

JERA

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Fatigue failure due to stress raiser regions on critical rotating components in gas turbine engines, such as the shaft, is a crucial aspect. Methods to reduce these stresses and improve fatigue life are a source of ongoing research. Laser shock peening is a method where compressive residual stresses are imparted on the stress raisers of such components. However, numerical based studies on multiple laser shock peening applied to stress raisers is under-researched. Hence, this study will attempt to predict the fatigue life at fillet radii step induced stress raiser regions on a high-speed gas turbine engine shaft by utilization of laser shock peening. The objective of this study was achieved by developing a more computational efficient finite element model to mimic the laser shock peening process on the fillet radii step induced stress raiser regions of a shaft. A modified laser shock peening simulation method for effective prediction of the residual stress field was introduced. Furthermore, the fatigue life improvement due to laser shock peening was predicted by employing Fe-safe fatigue software. From the results, the modified laser shock peening simulation method provided accurate prediction of the residual stress field with a reduced computational time of over 68% compared to conventional methods. The fatigue life revealed an improvement of 553% due to laser shock peening, which is comparable to similar findings in the literature. Hence, from the findings and results achieved, the developed finite element model can be an appropriate tool to assist in the fatigue life estimation of laser shock peening applied to stress raisers.

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Kinetics, Isotherms, and Thermodynamic Studies on the Efficient Adsorption of Ionizable Organic β-Agonist (Ractopamine) in Aqueous Solution onto Mechanically Synthesized Copper (II) Isonicotinate Metal–Organic Frameworks [Cu (INA)2]-MOF

Armaya’u,

Ariffin,

Loh

et al. 2024

Advanced Structured Materials

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1.14 Laser Peening of Metallic Materials

Cited by 15 publications

References 175 publications

Surface Engineering Strategies to Enhance the In Situ Performance of Medical Devices Including Atomic Scale Engineering

Surface Engineering Strategies to Enhance the In Situ Performance of Medical Devices Including Atomic Scale Engineering

Effect of Laser Shock Peening on Fatigue Life at Stress Raiser Regions of a High-Speed Micro Gas Turbine Shaft: A Simulation Based Study

Kinetics, Isotherms, and Thermodynamic Studies on the Efficient Adsorption of Ionizable Organic β-Agonist (Ractopamine) in Aqueous Solution onto Mechanically Synthesized Copper (II) Isonicotinate Metal–Organic Frameworks [Cu (INA)2]-MOF

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