Observation and Solidification Simulation of Microsegregation in Ni-base Alloy
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- Oikawa Katsunari
- Graduate School of Engineering, Tohoku University
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- Hiraki Hiroyuki
- Graduate School of Engineering, Tohoku University
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- Anzai Koichi
- Graduate School of Engineering, Tohoku University
Bibliographic Information
- Other Title
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- Ni基合金のミクロ偏析観察と凝固シミュレーション
- Niキ ゴウキン ノ ミクロヘンセキカンサツ ト ギョウコ シミュレーション
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Abstract
Solidification structure of an alloy of grade Hastelloy G-2 was investigated by differential scanning calorimetry and electron probe microanalyzer. Small amount of Cr and Mo-enriched phase was observed at the final solidification region. Furthermore, the numerical simulation of solidification behavior of this alloy was conducted using the thermodynamic models such as the Scheil-Guillver model and the Partial Equilibrium model, and the Multi-Phase-Field (MPF) method. The simulation results of the MPF method were in good agreement with the experimental results. And the Cr and Mo-enriched phase formed at the final solidification region was predicted as the σ phase from the results of simulation. The MPF method is valuable tool to investigate the microsegregation and phase transformation during the solidification of the Ni-base alloys.
Journal
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- Tetsu-to-Hagane
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Tetsu-to-Hagane 99 (2), 80-86, 2013
The Iron and Steel Institute of Japan
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Details 詳細情報について
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- CRID
- 1390001205126351616
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- NII Article ID
- 130003372510
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- NII Book ID
- AN10528571
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- ISSN
- 1341688X
- 18832954
- 00211575
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- COI
- 1:CAS:528:DC%2BC3sXit1ert7s%3D
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- NDL BIB ID
- 024257550
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed