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

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ISSN Druckformat: 1093-3611

ISSN Online: 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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NITRIDATION OF AUSTENITIC STAINLESS STEEL IN A NITROGEN PLASMA

Volumen 7, Ausgabe 3, 2003, pp. 299-306
DOI: 10.1615/HighTempMatProc.v7.i3.20
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ABSTRAKT

The effectiveness of the austenitic stainless steel nitriding can be significantly increased using an ultra high atomic nitrogen flux produced by a plasma torch at atmospheric pressure. It is shown, employing Glow Discharge Optical Spectroscopy (GDOS) profiling technique and cross-sectional Scanning Electron Microscope (SEM) analysis that an efficient nitriding proceeds at temperature above 350-400°C. The thickness of the nitrided layer is up to 150-200 μm after 25 min of processing. The possible nitriding mechanism is proposed with the emphasis on the interaction between the free surfaces, grain boundaries and bulk. The high-flux external irradiation increases the surface chemical potential and creates the compressive stress in the near surface layer. Stress relaxation initiates inelastic processes in grains, mainly dislocation glide, and related mass-transport of matrix atoms including nitrogen, supplied through the grain (subgrain) boundaries of crystallites and dislocations.

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