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Atomization and Sprays

年間 12 号発行

ISSN 印刷: 1044-5110

ISSN オンライン: 1936-2684

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: 1.2 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.8 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: 0.3 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: 0.00095 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: 0.28 SJR: 0.341 SNIP: 0.536 CiteScore™:: 1.9 H-Index: 57

Indexed in

ATOMIZATION OF ALLOY POWDERS

巻 2, 発行 3, 1992, pp. 253-274
DOI: 10.1615/AtomizSpr.v2.i3.40
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要約

The critical need to enhance the performance of currently available structural materials has prompted the development of a multitude of novel synthesis techniques. Among these, atomization has received considerable attention as a result of the large degree of microstructural control that is achievable with this technique. The large body of scientific literature reviewed in this article provides some examples of the successful application of a wide variety of atomization techniques for the production of metallic powders with unique combinations of physical and mechanical properties. The energy required for disintegration of the molten metal during atomization may be imparted in several ways. The most commonly used atomization techniques are (1) fluid atomization, (2) centrifugal atomization, (3) subsonic gas atomization, and (4) supersonic and other high-energy methods. Gas atomization, however, remains the most popular approach for the efficient manufacture of a wide variety of alloy compositions, as a result of the highly nonequilibrium transfer of thermal energy associated with this technique.
The scientific literature reviewed in the present work also reveals that a large proportion of the research effort has been aimed at developing equations that can be utilized to predict the resultant powder characteristics from relevant processing parameters and physical properties in an effort to (1) enhance our understanding of the fundamental mechanisms governing atomization and (2) increase the effectiveness of this technique for the manufacture of alloy powders. The research work reviewed in the present article demonstrates that most of these investigations were conducted with water, wax/polyethylene mixtures, oils, and molten waxes. Only two exceptions to this general trend were uncovered: a study involving the nitrogen atomization of cast iron (J. A. Tallmadge, 1978), and the development of a correlation to predict powder sizes during gas atomization of molten metals (H. Lubanska, 1970). The lack of experimental atomization data for metals and alloys was attributed to the extreme reactivity associated with molten metals, which renders these experiments difficult to control and interpret.

によって引用された
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