Investigation of Start Block and Corresponding Influence for Grain Selection during Casting of Single-Crystal Superalloys.

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ID: 84391
2019
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Abstract
To figure out the impact of the parameters of a starter block (the diameter D and height H) on grain selection and the selecting mechanism, a spiral selector was measured with optical microscopy (OM) and electron backscatter diffraction (EBSD) during the solidification of Ni-based single crystal (SX) superalloys. In this experiment, starter blocks with diameters of 8 mm, 10 mm, 15 mm, and 30 mm and a height of 30 mm were designed to find the best parameters. Recommendations for optimizing starter block geometry are provided.
Reference Key
zhu2019investigationmaterials Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Zhu, Xintao;Wang, Fu;Wittenzellner, Tobias;Zhang, Shuaipeng;Hemes, Susanne;Mathes, Michael;Ma, Dexin;Bührig-Polaczek, Andreas;
Journal Materials (Basel, Switzerland)
Year 2019
DOI
E1717
URL
Keywords
ni-based single crystal superalloys starter block grain selection selecting mechanism

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