論文

査読有り
2019年5月

A parametric study of morphology selection in equiaxed dendritic solidification

Computational Materials Science
  • Geunwoo Kim
  • ,
  • Tomohiro Takaki
  • ,
  • Yasushi Shibuta
  • ,
  • Shinji Sakane
  • ,
  • Kiyotaka Matsuura
  • ,
  • Munekazu Ohno

162
開始ページ
76
終了ページ
81
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.commatsci.2019.02.027

© 2019 Elsevier B.V. Morphological change of equiaxed dendritic structure in fcc-based alloys associated with transition in preferred growth direction was investigated by means of three-dimensional quantitative phase-field simulations. The anisotropy parameters of interfacial energy ε 1 and ε 2 were systematically changed to investigate the growth direction and growth morphology. The growth morphologies can be classified into four types; 〈1 0 0〉 growth, 〈1 0 0〉-like hyperbranched growth, 〈1 1 0〉-like hyperbranched growth and 〈1 1 0〉 growth morphologies. An orientation selection map for these morphologies was constructed in a space spanned by ε 1 and ε 2 . Furthermore, dependence of the orientation selection map on solidification condition and alloy system was investigated. When initial supersaturation is large and/or partition coefficient of alloy is small, the region of 〈1 0 0〉 growth, typical growth direction of fcc alloy, diminishes in the orientation selection map.

リンク情報
DOI
https://doi.org/10.1016/j.commatsci.2019.02.027
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85062177824&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85062177824&origin=inward
ID情報
  • DOI : 10.1016/j.commatsci.2019.02.027
  • ISSN : 0927-0256
  • SCOPUS ID : 85062177824

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