Three-dimensional characteristics of shrinkage porosities in Mg-xAl-1Zn-0.2Mn alloys and their relationship with microstructures
Shrinkage porosities are microscopic casting defects that significantly deteriorate material properties. This study examines the three-dimensional characteristics of shrinkage porosities in Mg-xAl-1Zn-0.2Mn (x = 3, 6, 9 wt%) alloys and explores the effects of Al content on these porosities, as well...
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Elsevier
2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424027960 |
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| author | Chuangming Li Ang Zhang Yongfeng Li Yuhong Cui Zongliang Tan Zhihua Dong Guangsheng Huang Bin Jiang Fusheng Pan |
| author_facet | Chuangming Li Ang Zhang Yongfeng Li Yuhong Cui Zongliang Tan Zhihua Dong Guangsheng Huang Bin Jiang Fusheng Pan |
| author_sort | Chuangming Li |
| collection | DOAJ |
| description | Shrinkage porosities are microscopic casting defects that significantly deteriorate material properties. This study examines the three-dimensional characteristics of shrinkage porosities in Mg-xAl-1Zn-0.2Mn (x = 3, 6, 9 wt%) alloys and explores the effects of Al content on these porosities, as well as their interaction with the alloy microstructures. Results show that the Al content influences the distribution, size, and morphology of shrinkage porosities by affecting dendritic coherency, secondary phases, and skeleton morphology during solidification. The volume of the shrinkage porosities is measured, and its variation is linked to uneven changes in the alloy's shrinkage and feeding characteristics. Additionally, the study analyzes the effect of casting pressure, based on casting height, on the types of shrinkage porosities. This study provides a detailed explanation of the microscopic formation mechanism of shrinkage porosities, aiming to offer theoretical foundation for reducing porosities. |
| format | Article |
| id | doaj-art-c367a92e53554bf5a96d0dbfbbe0b414 |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-c367a92e53554bf5a96d0dbfbbe0b4142025-08-20T02:35:26ZengElsevierJournal of Materials Research and Technology2238-78542024-11-01339372938510.1016/j.jmrt.2024.11.268Three-dimensional characteristics of shrinkage porosities in Mg-xAl-1Zn-0.2Mn alloys and their relationship with microstructuresChuangming Li0Ang Zhang1Yongfeng Li2Yuhong Cui3Zongliang Tan4Zhihua Dong5Guangsheng Huang6Bin Jiang7Fusheng Pan8National Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaCorresponding author. Sha Zheng Street 174#, Sha Ping Ba District, Chongqing, China.; National Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaNational Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaNational Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaNational Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaNational Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaNational Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaCorresponding author. Sha Zheng Street 174#, Sha Ping Ba District, Chongqing, China.; National Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaNational Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaShrinkage porosities are microscopic casting defects that significantly deteriorate material properties. This study examines the three-dimensional characteristics of shrinkage porosities in Mg-xAl-1Zn-0.2Mn (x = 3, 6, 9 wt%) alloys and explores the effects of Al content on these porosities, as well as their interaction with the alloy microstructures. Results show that the Al content influences the distribution, size, and morphology of shrinkage porosities by affecting dendritic coherency, secondary phases, and skeleton morphology during solidification. The volume of the shrinkage porosities is measured, and its variation is linked to uneven changes in the alloy's shrinkage and feeding characteristics. Additionally, the study analyzes the effect of casting pressure, based on casting height, on the types of shrinkage porosities. This study provides a detailed explanation of the microscopic formation mechanism of shrinkage porosities, aiming to offer theoretical foundation for reducing porosities.http://www.sciencedirect.com/science/article/pii/S2238785424027960Mg-Al alloysSolidificationShrinkage porosityMicrostructure characteristic |
| spellingShingle | Chuangming Li Ang Zhang Yongfeng Li Yuhong Cui Zongliang Tan Zhihua Dong Guangsheng Huang Bin Jiang Fusheng Pan Three-dimensional characteristics of shrinkage porosities in Mg-xAl-1Zn-0.2Mn alloys and their relationship with microstructures Journal of Materials Research and Technology Mg-Al alloys Solidification Shrinkage porosity Microstructure characteristic |
| title | Three-dimensional characteristics of shrinkage porosities in Mg-xAl-1Zn-0.2Mn alloys and their relationship with microstructures |
| title_full | Three-dimensional characteristics of shrinkage porosities in Mg-xAl-1Zn-0.2Mn alloys and their relationship with microstructures |
| title_fullStr | Three-dimensional characteristics of shrinkage porosities in Mg-xAl-1Zn-0.2Mn alloys and their relationship with microstructures |
| title_full_unstemmed | Three-dimensional characteristics of shrinkage porosities in Mg-xAl-1Zn-0.2Mn alloys and their relationship with microstructures |
| title_short | Three-dimensional characteristics of shrinkage porosities in Mg-xAl-1Zn-0.2Mn alloys and their relationship with microstructures |
| title_sort | three dimensional characteristics of shrinkage porosities in mg xal 1zn 0 2mn alloys and their relationship with microstructures |
| topic | Mg-Al alloys Solidification Shrinkage porosity Microstructure characteristic |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424027960 |
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