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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

Publicado 4 números por año

ISSN Imprimir: 1093-3611

ISSN En Línea: 1940-4360

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00005 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.07 SJR: 0.198 SNIP: 0.48 CiteScore™:: 1.1 H-Index: 20

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OXIDATION OF STAINLESS STEEL PARTICLES WITH AND WITHOUT AN ALUMINA SHELL DURING THEIR FLIGHT IN A PLASMA JET

Volumen 4, Edición 3, 2000, 16 pages
DOI: 10.1615/HighTempMatProc.v4.i3.20
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SINOPSIS

Investigations are carried out to study the oxidation of stainless steel particles collected after their flight in a plasma jet. In some tests, the injected particles are coated with an alumina shell. Particles are sprayed in Atmospheric Plasma Spraying (APS) and then collected in a concentric cylinder where they are quenched by argon jets. SEM observations of sprayed stainless steel particles show the formation of dark spots within their clear cross section, which displays the chromium and oxygen elements prominently. X-ray diffraction shows a chromium oxide phase which seems to be CrO. This is due to the convective movements within the particle renewing continuously fresh chromium at the surface and entraining the formed CrO inside the particle. It seems that, as for FeO, CrO is immiscible with liquid steel. On the other hand, alumina coated particles are less oxidized : cross sections present less oxide inclusions. Two types of particles were observed : some are still fully coated but the shell is broken due to the higher expansion of the stainless steel core. They probably result from particles where alumina has not been fully melted. Others have their alumina fused and entrained by liquid flow to the back of the moving droplet. Fused alumina droplets at the particles surface have coalesced creating a melted alumina cap. The two types of particles are probably due to the wide distribution trajectories within the spray cone which result in temperature differences. The particles with the alumina at the tail have probably traveled in the core of the plasma jet where temperatures are higher and then both materials have been melted, whereas the others have traveled in the jet fringes where the temperatures are lower.

CITADO POR
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  3. Syed A.A., Denoirjean A., Fauchais P., Labbe J.C., On the oxidation of stainless steel particles in the plasma jet, Surface and Coatings Technology, 200, 14-15, 2006. Crossref

  4. Gan Jo Ann, Berndt Christopher C., Review on the Oxidation of Metallic Thermal Sprayed Coatings: A Case Study with Reference to Rare-Earth Permanent Magnetic Coatings, Journal of Thermal Spray Technology, 22, 7, 2013. Crossref

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  6. Song Zhuguo, Li Hui, Plasma Spraying with Wire Feeding: A Facile Route to Enhance the Coating/Substrate Interfacial Metallurgical Bonding, Coatings, 12, 5, 2022. Crossref

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