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A Crystallographic Basis for Critically Evaluating the Mechanisms for Secondary Grain Formation During Directional Solidification

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Main Authors: D’Souza, N., Edmonds, I. M., Perry, M.
Format: Book
Language:English
Published: Springer 2023
Subjects:
Crystallographic Basis
Online Access:https://link.springer.com/article/10.1007/s11661-023-07194-7
https://dlib.phenikaa-uni.edu.vn/handle/PNK/8992
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spelling oai:localhost:PNK-89922023-09-14T03:17:16Z A Crystallographic Basis for Critically Evaluating the Mechanisms for Secondary Grain Formation During Directional Solidification D’Souza, N. Edmonds, I. M. Perry, M. Crystallographic Basis CC-BY A crystallography-based method is presented for the critical appraisal of possible mechanisms that trigger the formation of secondary grains during directional solidification. The method permits an analysis of a large population of defects, while avoiding the pitfalls of the metallographic sectioning approach that is affected by dendrite stereology. Here, the nickel-base superalloy CMSX-4, an alloy commonly used for single crystal turbine blade applications, is studied. All secondary grains originate exclusively at the external surface and when the off-axial primary ⟨001⟩ crystal orientations are measured, are evident at both the converging and diverging dispositions of the single crystal primary dendrites without a noticeable bias. Almost all of the secondary grains have low misorientations, with an average misorientation between 5 to 15 deg. 2023-09-14T03:17:16Z 2023-09-14T03:17:16Z 2023 Book https://link.springer.com/article/10.1007/s11661-023-07194-7 https://dlib.phenikaa-uni.edu.vn/handle/PNK/8992 en application/pdf Springer
institution Digital Phenikaa
collection Digital Phenikaa
language English
topic Crystallographic Basis
spellingShingle Crystallographic Basis
D’Souza, N.
Edmonds, I. M.
Perry, M.
A Crystallographic Basis for Critically Evaluating the Mechanisms for Secondary Grain Formation During Directional Solidification
description CC-BY
format Book
author D’Souza, N.
Edmonds, I. M.
Perry, M.
author_facet D’Souza, N.
Edmonds, I. M.
Perry, M.
author_sort D’Souza, N.
title A Crystallographic Basis for Critically Evaluating the Mechanisms for Secondary Grain Formation During Directional Solidification
title_short A Crystallographic Basis for Critically Evaluating the Mechanisms for Secondary Grain Formation During Directional Solidification
title_full A Crystallographic Basis for Critically Evaluating the Mechanisms for Secondary Grain Formation During Directional Solidification
title_fullStr A Crystallographic Basis for Critically Evaluating the Mechanisms for Secondary Grain Formation During Directional Solidification
title_full_unstemmed A Crystallographic Basis for Critically Evaluating the Mechanisms for Secondary Grain Formation During Directional Solidification
title_sort crystallographic basis for critically evaluating the mechanisms for secondary grain formation during directional solidification
publisher Springer
publishDate 2023
url https://link.springer.com/article/10.1007/s11661-023-07194-7
https://dlib.phenikaa-uni.edu.vn/handle/PNK/8992
_version_ 1779307145318105088
score 8.891145

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