Peening Techniques for Surface Modification: Processes, Properties, and Applications

John, Merbin; Kalvala, Prasad Rao; Misra, M.; Menezes, Pradeep L.

doi:10.3390/ma14143841

Cited by 60 publications

(28 citation statements)

References 168 publications

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“…Moreover, only a few studies have been carried out on the addition of solid lubricants and strengthening phases in the HEAs matrix. There is still a broad scope to study and create a guideline to choose suitable solid lubricants in HEAs to control COF as the solid lubricants have multiple categories [ 77 ]. Future studies can be focused on the distribution of solid lubricants in HEAs without reacting with the initial metal constituents.…”

Section: Future Scope Of the Heas For Tribological Applicationsmentioning

confidence: 99%

Tribological Properties of High-Entropy Alloys under Dry Conditions for a Wide Temperature Range—A Review

2021

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High-entropy alloys (HEAs) are composed of multiple elements with equimolar or near equimolar composition that have superior mechanical and tribological properties. In this article, we present a review on the tribological performance of HEAs. The tribological properties of different HEAs systems have been evaluated, and it has been found that the wear rate strongly depends on the crystal structure of the phases. The most common structures are face-centered cubic (FCC), body-centered cubic (BCC), and dual-phase (FCC + BCC) alloys due to the high entropy of mixing instead of forming intermetallic phases. In general, HEAs with a BCC structure showed superior hardness and wear properties compared to FCC and FCC + BCC alloys. The lesser wear rate of HEAs with a BCC structure is attributed to the reductions in ductility, resulting in strong but brittle alloys. In addition to the crystal structure, the effect of temperature on the tribological performance of the HEAs is also discussed, which highlights their potential applications for high temperatures. Moreover, various other factors such as grain size, formation of an oxide layer, and wear mechanisms are discussed.

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Section: Future Scope Of the Heas For Tribological Applicationsmentioning

confidence: 99%

Tribological Properties of High-Entropy Alloys under Dry Conditions for a Wide Temperature Range—A Review

2021

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“…Corrosion is detrimental to material life cycle and therefore coating is often used to reduce corrosion. Metals, especially different kinds of steels, are prone to corrosion [147]. EAP coatings are particularly effective to prevent corrosion on cold-rolled steel (CRS) [148].…”

Section: (B) Corrosion Reductionmentioning

confidence: 99%

Recent Progress on Electroactive Polymers: Synthesis, Properties and Applications

et al. 2021

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Electroactive polymers (EAPs) are an advanced family of polymers that change their shape through electric stimulation and have been a point of interest since their inception. This unique functionality has helped EAPs to contribute to versatile fields, such as electrical, biomedical, and robotics, to name a few. Ionic EAPs have a significant advantage over electronic EAPs. For example, Ionic EAPs require a lower voltage to activate than electronic EAPs. On the other hand, electronic EAPs could generate a relatively larger actuation force. Therefore, efforts have been focused on improving both kinds to achieve superior properties. In this review, the synthesis routes of different EAP-based actuators and their properties are discussed. Moreover, their mechanical interactions have been investigated from a tribological perspective as all these EAPs undergo surface interactions. Such interactions could reduce their useful life and need significant research attention for enhancing their life. Recent advancements and numerous applications of EAPs in various sectors are also discussed in this review.

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“…Surface strengthening by different severe plastic deformation (SPD) methods has been widely perceived to enhance surface mechanical properties [1]. Researchers have used SPD by shot peening [2,3], severe shot peening (SSP) [4,5], ultrasonic impact peening [6,7], ultrasonic shot peening (USP) [8,9], laser shock peening [10,11], direct and indirect laser shock surface patterning (LSSP) [12,13], surface mechanical attrition treatment (SMAT) [14,15], and deep cold rolling (DCR) [16]. These surface SPD techniques could induce residual compressive stress (RCS) and closure of existing microcracks and microcavities on the surface [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…There are significant reviews on various surface SPD methods to enhance surface integrity and surface mechanical properties. John et al [10] comprehensively reviewed the three most commonly used peening techniques such as SP, UIP, and LSP for a broad range of engineering materials and elucidated the influence of various process parameters on surface mechanical properties. Their study revealed superior enhancement in surface There are significant reviews on various surface SPD methods to enhance surface integrity and surface mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic Surface Rolling Process: Properties, Characterization, and Applications

et al. 2021

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Ultrasonic surface rolling process (USRP) is a novel surface severe plastic deformation (SPD) method that integrates ultrasonic impact peening (UIP) and deep rolling (DR) to enhance the surface integrity and surface mechanical properties of engineering materials. USRP can induce gradient nanostructured surface (GNS) layers on the substrate, providing superior mechanical properties, thus preventing premature material failure. Herein, a comprehensive overview of current-state-of-the art USRP is provided. More specifically, the effect of the USRP on a broad range of materials exclusively used for aerospace, automotive, nuclear, and chemical industries is explained. Furthermore, the effect of USRP on different mechanical properties, such as hardness, tensile, fatigue, wear resistance, residual stress, corrosion resistance, and surface roughness are summarized. In addition, the effect of USRP on grain refinement and the formation of gradient microstructure is discussed. Finally, this study elucidates the application and recent advances of the USRP process.

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Peening Techniques for Surface Modification: Processes, Properties, and Applications

Cited by 60 publications

References 168 publications

Tribological Properties of High-Entropy Alloys under Dry Conditions for a Wide Temperature Range—A Review

Tribological Properties of High-Entropy Alloys under Dry Conditions for a Wide Temperature Range—A Review

Recent Progress on Electroactive Polymers: Synthesis, Properties and Applications

Ultrasonic Surface Rolling Process: Properties, Characterization, and Applications

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