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Communication

Growth Behaviors of Bubbles and Intermetallic Compounds in Solidifying Al-5 wt.% Mn Alloy

1
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2
State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, China
3
Sichuan Research Institute, Shanghai Jiao Tong University, Chengdu 610213, China
*
Author to whom correspondence should be addressed.
Crystals 2024, 14(7), 613; https://doi.org/10.3390/cryst14070613
Submission received: 27 May 2024 / Revised: 17 June 2024 / Accepted: 23 June 2024 / Published: 30 June 2024
(This article belongs to the Special Issue Progress in Light Alloys)

Abstract

The growth behaviors of hydrogen bubbles and intermetallic compounds (IMCs) during solidification of an Al-5 wt.% Mn alloy was investigated by synchrotron radiography. Results show that bubble collapse can increase hydrogen concentration in nearby Al melt, thus facilitating the formation and growth of new bubbles. Under the interference of Al6Mn IMCs, the growth method of an individual bubble is changed from a Gaussian distribution to a linear model. Al6Mn crystal growth can be divided into three stages: first an isotropic spherical crystal appears, then it evolves into primary branches, and eventually forms an irregular octahedron.
Keywords: Al-Mn alloy; bubbles; intermetallic compounds; synchrotron radiography Al-Mn alloy; bubbles; intermetallic compounds; synchrotron radiography

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MDPI and ACS Style

Huang, S.; Lu, W. Growth Behaviors of Bubbles and Intermetallic Compounds in Solidifying Al-5 wt.% Mn Alloy. Crystals 2024, 14, 613. https://doi.org/10.3390/cryst14070613

AMA Style

Huang S, Lu W. Growth Behaviors of Bubbles and Intermetallic Compounds in Solidifying Al-5 wt.% Mn Alloy. Crystals. 2024; 14(7):613. https://doi.org/10.3390/cryst14070613

Chicago/Turabian Style

Huang, Shudong, and Wenquan Lu. 2024. "Growth Behaviors of Bubbles and Intermetallic Compounds in Solidifying Al-5 wt.% Mn Alloy" Crystals 14, no. 7: 613. https://doi.org/10.3390/cryst14070613

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