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

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...

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Autores principales: Zhu, Xintao, Wang, Fu, Wittenzellner, Tobias, Zhang, Shuaipeng, Hemes, Susanne, Mathes, Michael, Ma, Dexin, Bührig-Polaczek, Andreas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6566765/
https://www.ncbi.nlm.nih.gov/pubmed/31137839
http://dx.doi.org/10.3390/ma12101717
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author Zhu, Xintao
Wang, Fu
Wittenzellner, Tobias
Zhang, Shuaipeng
Hemes, Susanne
Mathes, Michael
Ma, Dexin
Bührig-Polaczek, Andreas
author_facet Zhu, Xintao
Wang, Fu
Wittenzellner, Tobias
Zhang, Shuaipeng
Hemes, Susanne
Mathes, Michael
Ma, Dexin
Bührig-Polaczek, Andreas
author_sort Zhu, Xintao
collection PubMed
description 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.
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spelling pubmed-65667652019-06-17 Investigation of Start Block and Corresponding Influence for Grain Selection during Casting of Single-Crystal Superalloys Zhu, Xintao Wang, Fu Wittenzellner, Tobias Zhang, Shuaipeng Hemes, Susanne Mathes, Michael Ma, Dexin Bührig-Polaczek, Andreas Materials (Basel) Article 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. MDPI 2019-05-27 /pmc/articles/PMC6566765/ /pubmed/31137839 http://dx.doi.org/10.3390/ma12101717 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhu, Xintao
Wang, Fu
Wittenzellner, Tobias
Zhang, Shuaipeng
Hemes, Susanne
Mathes, Michael
Ma, Dexin
Bührig-Polaczek, Andreas
Investigation of Start Block and Corresponding Influence for Grain Selection during Casting of Single-Crystal Superalloys
title Investigation of Start Block and Corresponding Influence for Grain Selection during Casting of Single-Crystal Superalloys
title_full Investigation of Start Block and Corresponding Influence for Grain Selection during Casting of Single-Crystal Superalloys
title_fullStr Investigation of Start Block and Corresponding Influence for Grain Selection during Casting of Single-Crystal Superalloys
title_full_unstemmed Investigation of Start Block and Corresponding Influence for Grain Selection during Casting of Single-Crystal Superalloys
title_short Investigation of Start Block and Corresponding Influence for Grain Selection during Casting of Single-Crystal Superalloys
title_sort investigation of start block and corresponding influence for grain selection during casting of single-crystal superalloys
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6566765/
https://www.ncbi.nlm.nih.gov/pubmed/31137839
http://dx.doi.org/10.3390/ma12101717
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