Plasma Electrolytic Oxidation of Metals and Alloys

Hryniewicz, Tadeusz

doi:10.3390/met8121058

Cited by 19 publications

(9 citation statements)

References 10 publications

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“…After PEO, the number and intensity of aluminum and silicon peaks decrease, but α-Al 2 O 3 (corundum) peaks appear. This is evidence of the course of high-temperature processes during PEO and homogenization of the surface layer [44].…”

Section: Plasma Electrolytic Oxidation Of Aluminum Alloysmentioning

confidence: 76%

Analysis of technological approaches to electrochemical surface treatment of aluminum alloys

Karakurkchi

Сахненко

Ved

et al. 2020

EEJET

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strength characteristics, alloying components (manganese, iron, copper, silicon, magnesium, etc.) are introduced into alloys, which form intermetallic compounds in the alloy structure. This causes the surface heterogeneity of alloyed aluminum alloys, significantly reduces corrosion resistance in aggressive media and complicates the surface treatment of such materials [9]. To give additional functional properties to the surface, surface modification methods are used, when predetermined indicators can be achieved without changing the structure of the base material [10]. Such surface engineering technologies are in demand and promising. Application of thin-film coatings for surface protection and strengthening [11, 12], formation of catalytically active layers [13, 14], electrochemical [15] and plasma-chemical treatment are the most common [16]. Variations and combinations of treatment methods

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Section: Plasma Electrolytic Oxidation Of Aluminum Alloysmentioning

confidence: 76%

Analysis of technological approaches to electrochemical surface treatment of aluminum alloys

Karakurkchi

Сахненко

Ved

et al. 2020

EEJET

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“…Plasma treatment can induce the formation of the oxide layer on the surface of metals [ 129 ] and can also cause crystallization of amorphous oxide [ 130 ]. Surface chemical composition, as well as surface crystallinity, may significantly influence the biological response.…”

Section: Plasma Induced Antibacterial Properties Of Metalsmentioning

confidence: 99%

Use of Plasma Technologies for Antibacterial Surface Properties of Metals

et al. 2021

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Bacterial infections of medical devices present severe problems connected with long-term antibiotic treatment, implant failure, and high hospital costs. Therefore, there are enormous demands for innovative techniques which would improve the surface properties of implantable materials. Plasma technologies present one of the compelling ways to improve metal’s antibacterial activity; plasma treatment can significantly alter metal surfaces’ physicochemical properties, such as surface chemistry, roughness, wettability, surface charge, and crystallinity, which all play an important role in the biological response of medical materials. Herein, the most common plasma treatment techniques like plasma spraying, plasma immersion ion implantation, plasma vapor deposition, and plasma electrolytic oxidation as well as novel approaches based on gaseous plasma treatment of surfaces are gathered and presented. The latest results of different surface modification approaches and their influence on metals’ antibacterial surface properties are presented and critically discussed. The mechanisms involved in bactericidal effects of plasma-treated surfaces are discussed and novel results of surface modification of metal materials by highly reactive oxygen plasma are presented.

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“…through a phase strengthening deriving from nanoscale precipitates produced by aging and transformation induced plasticity (TRIP) [75]. A recent paper describes some relatively recent developments on the production and use of Ti and its alloys in aerospace components [76].…”

Section: Ti-based Alloysmentioning

confidence: 99%

“…For example, increased yield strength without a corresponding strong decrease of ductility has been obtained in Ti-10V-2Fe-3Al alloy by Ellyson et al through a phase strengthening deriving from nanoscale precipitates produced by aging and transformation induced plasticity (TRIP) [ 75 ]. A recent paper describes some relatively recent developments on the production and use of Ti and its alloys in aerospace components [ 76 ].…”

Section: Aircraft Engines and Crmsmentioning

confidence: 99%

Critical Raw Materials Saving by Protective Coatings under Extreme Conditions: A Review of Last Trends in Alloys and Coatings for Aerospace Engine Applications

et al. 2021

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Several applications where extreme conditions occur require the use of alloys often containing many critical elements. Due to the ever increasing prices of critical raw materials (CRMs) linked to their high supply risk, and because of their fundamental and large utilization in high tech products and applications, it is extremely important to find viable solutions to save CRMs usage. Apart from increasing processes’ efficiency, substitution, and recycling, one of the alternatives to preserve an alloy and increase its operating lifetime, thus saving the CRMs needed for its manufacturing, is to protect it by a suitable coating or a surface treatment. This review presents the most recent trends in coatings for application in high temperature alloys for aerospace engines. CRMs’ current and future saving scenarios in the alloys and coatings for the aerospace engine are also discussed. The overarching aim of this paper is to raise awareness on the CRMs issue related to the alloys and coating for aerospace, suggesting some mitigation measures without having the ambition nor to give a complete overview of the topic nor a turnkey solution.

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Plasma Electrolytic Oxidation of Metals and Alloys

Abstract: Porous oxide layers formed on metals and alloys via Plasma Electrolytic Oxidation (PEO) have been developed and used for decades in medicine and for technical purposes. [...]

Cited by 19 publications

References 10 publications

Analysis of technological approaches to electrochemical surface treatment of aluminum alloys

Analysis of technological approaches to electrochemical surface treatment of aluminum alloys

Use of Plasma Technologies for Antibacterial Surface Properties of Metals

Critical Raw Materials Saving by Protective Coatings under Extreme Conditions: A Review of Last Trends in Alloys and Coatings for Aerospace Engine Applications

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