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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

Indexed in

POROSITY AND CORROSION RESISTANCE OF PLASMA CONVERSION COATINGS ON MAGNESIUM ALLOYS

Volumen 8, Edición 4, 2004, pp. 635-643
DOI: 10.1615/HighTempMatProc.v8.i4.130
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SINOPSIS

The topologies of oxide-ceramic conversion coatings on magnesium alloys which had been produced in an electrolyte plasma were investigated using a visual scanning technique. In addition, the porosities of these coatings were evaluated by two independent methods, i.e. by dipping and via electrochemical deposition. The corrosion resistance was assessed from measurements of the corrosion current in polarisation experiments which were performed in 0.3% HCl solution and in 0.3% NaCl solution, respectively.
It was found that craters resulting from an extinction of some of the discharge channels of the electrolyte plasma did not always extend down to the base metal and therefore in these cases could not be considered as real pores. On the other hand, pores were detected which were located close to the crater areas and, evidently, had been caused by high thermal stresses occurring during the plasma treating process. Another finding was, that the degree of corrosion resistance provided by the coatings investigated here is in acid environments mainly determined by the chemical composition of the substrate alloy whereas in neutral environments the porosity of the coatings plays the dominating role.

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