Magnesium thixotropic structure produced by controlled nucleation method
Article
Article Title | Magnesium thixotropic structure produced by controlled nucleation method |
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Article Category | Article |
Authors | Wang, Hao (Author) and Ning, Zhiliang (Author) |
Journal Title | Tezhong Zhuzao Ji Youse Hejin (Special Casting and Nonferrous Alloys) |
Number of Pages | 4 |
Year | 2007 |
Place of Publication | Wuhan, China |
Web Address (URL) | http://journalseek.net/cgi-bin/journalseek/journalsearch.cgi?field=issn&query=1001-2249 |
Abstract | [Abstract]: Controlled Nucleation Method (CNM) is applied to AZ91 magnesium alloy to produce thixotropic structure suitable for semisolid casting. Pouring temperature and cooling rate are the two important solidification conditions that can be used for microstructure control in CNM process. Both have a significant effect on the as-cast microstructure and therefore on semisolid microstructure. Low pouring temperature produces fine non-dendritic as-cast structure. After partial remelting and isothermal holding, it develops into a thixotropic structure. High pouring temperature leads to a coarse dendritic as-cast structure, which turns into an irregular solid network in semisolid state. High pouring temperature can combine with high cooling rate to achieve a thixotropic structure. |
Keywords | semisolid processing, solidification, semisolid feedstock, magnesium alloy, controlled nucleation method |
ANZSRC Field of Research 2020 | 401607. Metals and alloy materials |
401408. Manufacturing processes and technologies (excl. textiles) | |
Public Notes | Unable to locate Publisher contact details. |
Byline Affiliations | Department of Mechanical and Mechatronic Engineering |
Harbin Institute of Technology, China |
https://research.usq.edu.au/item/9yq5y/magnesium-thixotropic-structure-produced-by-controlled-nucleation-method
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