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

Published 4 issues per year

ISSN Print: 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

Indexed in

FORMATION OF A POROUS TITANIUM PART UNDER DIRECTED ENERGY DEPOSITION: THEORY AND EXPERIMENT

Volume 23, Issue 1, 2019, pp. 1-23
DOI: 10.1615/HighTempMatProc.2018029386
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ABSTRACT

Despite the enormous number of works devoted to the creation of materials and products by the technologies of selective laser melting (SLM) and electron-beam melting (EBM), there remained a lot of problems connected with the uniqueness of concrete results that cannot be transferred to other three-dimensional production conditions and even to other geometries and dimensions. The current work proposes a model of the process of growth of an object on the basis of minimal experimental information with due consideration of melting and shrinkage. The shrinkage occurs due to the porosity evolution, which affects the volumetric heat capacity and heat conductivity of a melted layer, while in the case of laser radiation, it also affects the coefficient of laser radiation reflection. Titanium was chosen as the object of study, since it is widely used in various additive manufacturing technologies. The work demonstrates that EBM is an appreciably nonstationary process, and its results cannot be assessed by the analysis of temperature in a single track. In the case of laser radiation, the quasi-stationary melting regime at limited time intervals can be established, which is caused by competing factors of heating and heat loss through different mechanisms. The work numerically demonstrates the possibility of obtaining a regular structure, if adequate technological parameters are chosen. This agrees qualitatively with the experiment. To estimate the effective mechanical properties of obtained materials based on the data of their structure, a micromechanical model was used.

CITED BY
  1. Knyazeva Anna, Kryukova Olga, Modeling Ti-Al-C-composite synthesis on a substrate under control of electron beam, Journal of Crystal Growth, 531, 2020. Crossref

  2. Anisimova Maria, Knyazeva Anna, Sevostianov Igor, Evolution of the effective elastic properties of metal matrix composites during the synthesis, International Journal of Engineering Science, 153, 2020. Crossref

  3. Anisimova M. A., Phase Formation in Transition Layer Between Matrix and Particle During Thermal Cycle, Russian Physics Journal, 64, 4, 2021. Crossref

  4. Knyazeva A. G., NONSTATIONARY THERMOKINETIC MODEL OF SURFACE LASER SCANNING, Journal of Applied Mechanics and Technical Physics, 62, 6, 2021. Crossref

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