2021年3月15日
Uniquely selected primary dendrite arm spacing during competitive growth of columnar grains in Al–Cu alloy
Journal of Crystal Growth
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- ,
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- 巻
- 558
- 号
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.jcrysgro.2020.126014
- 出版者・発行元
- ELSEVIER
The steady-state value of primary dendrite arm spacing (PDAS) in the columnar dendrites growing between the converging and diverging grain boundaries is investigated by means of quantitative phase-field simulations. The simulations show that there is a unique value of PDAS under a given solidification condition in the system with grain boundaries. This is in contrast to existence of allowable range of PDAS under a given solidification in a system without the grain boundaries, i.e., an infinitely large columnar grain investigated in many early works. Such a unique value of PDAS depends on the pulling speed and inclination angle of the crystal, but not on the initial condition; that is, it is independent of the history of solidification condition. The dependences of the unique value on the pulling speed and inclination angle qualitatively agree with the theoretical models.
- リンク情報
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- DOI
- https://doi.org/10.1016/j.jcrysgro.2020.126014
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000618151700010&DestApp=WOS_CPL
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85100165031&origin=inward
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85100165031&origin=inward
- ID情報
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- DOI : 10.1016/j.jcrysgro.2020.126014
- ISSN : 0022-0248
- eISSN : 1873-5002
- SCOPUS ID : 85100165031
- Web of Science ID : WOS:000618151700010