Phase transformation and liquid density redistribution during solidification of Ni-based superalloy Inconel 718
The influences of chemical segregation and phase transformation on liquid density variation during solidification of Ni-based supperalloy Inconel 718 were investigated using SEM and EDS. It was found that significant segregation in liquid prompts high Nb phase to precipitate directly from liquid, wh...
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Format: | Article |
Language: | English |
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Foundry Journal Agency
2012-08-01
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Series: | China Foundry |
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Online Access: | http://www.foundryworld.com/uploadfile/2012082742867057.pdf |
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author | Wang Ling Gong He Zhao Haofeng |
author_facet | Wang Ling Gong He Zhao Haofeng |
author_sort | Wang Ling |
collection | DOAJ |
description | The influences of chemical segregation and phase transformation on liquid density variation during solidification of Ni-based supperalloy Inconel 718 were investigated using SEM and EDS. It was found that significant segregation in liquid prompts high Nb phase to precipitate directly from liquid, which results in the redistribution of alloy elements and liquid density in their vicinity. The term “inter-precipitate liquid density” is therefore proposed and this concept should be applied to determine the solidification behavior of superalloy Inconel 718. |
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id | doaj.art-5ed9f4c1f0094d4cb345e19a2e69d456 |
institution | Directory Open Access Journal |
issn | 1672-6421 |
language | English |
last_indexed | 2024-12-21T13:49:13Z |
publishDate | 2012-08-01 |
publisher | Foundry Journal Agency |
record_format | Article |
series | China Foundry |
spelling | doaj.art-5ed9f4c1f0094d4cb345e19a2e69d4562022-12-21T19:01:46ZengFoundry Journal AgencyChina Foundry1672-64212012-08-0193263268Phase transformation and liquid density redistribution during solidification of Ni-based superalloy Inconel 718Wang LingGong HeZhao HaofengThe influences of chemical segregation and phase transformation on liquid density variation during solidification of Ni-based supperalloy Inconel 718 were investigated using SEM and EDS. It was found that significant segregation in liquid prompts high Nb phase to precipitate directly from liquid, which results in the redistribution of alloy elements and liquid density in their vicinity. The term “inter-precipitate liquid density” is therefore proposed and this concept should be applied to determine the solidification behavior of superalloy Inconel 718.http://www.foundryworld.com/uploadfile/2012082742867057.pdfInconel 718Nb segregationphase transformationinter-precipitate density inversion |
spellingShingle | Wang Ling Gong He Zhao Haofeng Phase transformation and liquid density redistribution during solidification of Ni-based superalloy Inconel 718 China Foundry Inconel 718 Nb segregation phase transformation inter-precipitate density inversion |
title | Phase transformation and liquid density redistribution during solidification of Ni-based superalloy Inconel 718 |
title_full | Phase transformation and liquid density redistribution during solidification of Ni-based superalloy Inconel 718 |
title_fullStr | Phase transformation and liquid density redistribution during solidification of Ni-based superalloy Inconel 718 |
title_full_unstemmed | Phase transformation and liquid density redistribution during solidification of Ni-based superalloy Inconel 718 |
title_short | Phase transformation and liquid density redistribution during solidification of Ni-based superalloy Inconel 718 |
title_sort | phase transformation and liquid density redistribution during solidification of ni based superalloy inconel 718 |
topic | Inconel 718 Nb segregation phase transformation inter-precipitate density inversion |
url | http://www.foundryworld.com/uploadfile/2012082742867057.pdf |
work_keys_str_mv | AT wangling phasetransformationandliquiddensityredistributionduringsolidificationofnibasedsuperalloyinconel718 AT gonghe phasetransformationandliquiddensityredistributionduringsolidificationofnibasedsuperalloyinconel718 AT zhaohaofeng phasetransformationandliquiddensityredistributionduringsolidificationofnibasedsuperalloyinconel718 |