Microstructural evolution and intermetallic formation in Al-8wt% Si-0.8wt% Fe alloy due to grain refiner and modifier additions
An alloy of A1-8wt% Si-0.8wt% Fe was cast in a metallic die, and its microstrucmral changes due to Ti-B refiner and Sr modifier additions were studied. Apart from usual refinement and modification of the microstructure, some mutual influences of the additives took place, and no mutual poisoning effe...
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| Veröffentlicht in: | International journal of minerals, metallurgy and materials metallurgy and materials, 2012-08, Vol.19 (8), p.739-746 |
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| container_title | International journal of minerals, metallurgy and materials |
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| creator | Hassani, Amir Ranjbar, Khalil Sami, Sattar |
| description | An alloy of A1-8wt% Si-0.8wt% Fe was cast in a metallic die, and its microstrucmral changes due to Ti-B refiner and Sr modifier additions were studied. Apart from usual refinement and modification of the microstructure, some mutual influences of the additives took place, and no mutual poisoning effects by these additives, in combined form, were observed. It was noticed that the dimensions of the iron-rich intermetallics were influenced by the additives causing them to become larger. The needle-shaped intermetallics that were obtained from refiner addition became thicker and longer when adding the modifier. It was also found that a-Al and eutectic silicon phases preferentially nucleate on different types of intermetallic compounds. The more iron content of the intermetallic compounds and the more changes in their dimensions occurred. Formation of the shrinkage porosities was also observed. |
| doi_str_mv | 10.1007/s12613-012-0621-3 |
| format | Article |
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Apart from usual refinement and modification of the microstructure, some mutual influences of the additives took place, and no mutual poisoning effects by these additives, in combined form, were observed. It was noticed that the dimensions of the iron-rich intermetallics were influenced by the additives causing them to become larger. The needle-shaped intermetallics that were obtained from refiner addition became thicker and longer when adding the modifier. It was also found that a-Al and eutectic silicon phases preferentially nucleate on different types of intermetallic compounds. The more iron content of the intermetallic compounds and the more changes in their dimensions occurred. 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Apart from usual refinement and modification of the microstructure, some mutual influences of the additives took place, and no mutual poisoning effects by these additives, in combined form, were observed. It was noticed that the dimensions of the iron-rich intermetallics were influenced by the additives causing them to become larger. The needle-shaped intermetallics that were obtained from refiner addition became thicker and longer when adding the modifier. It was also found that a-Al and eutectic silicon phases preferentially nucleate on different types of intermetallic compounds. The more iron content of the intermetallic compounds and the more changes in their dimensions occurred. Formation of the shrinkage porosities was also observed.</description><subject>Additives</subject><subject>Alloying additive</subject><subject>Aluminum</subject><subject>Aluminum base alloys</subject><subject>Ceramics</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Composites</subject><subject>Corrosion and Coatings</subject><subject>Ferrous alloys</subject><subject>Glass</subject><subject>Grain refinement</subject><subject>Intermetallic compounds</subject><subject>Intermetallics</subject><subject>Iron</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Metallurgy</subject><subject>Microstructure</subject><subject>Natural Materials</subject><subject>Silicon</subject><subject>Surfaces and Interfaces</subject><subject>Thin Films</subject><subject>Tribology</subject><subject>合金</subject><subject>改性剂</subject><subject>晶粒细化剂</subject><subject>添加剂</subject><subject>组织演变</subject><subject>重量</subject><subject>金属间化合物</subject><issn>1674-4799</issn><issn>1869-103X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp9kU1rFTEYhYMoWK_-AHcREQolbb4mM1mWYqtQcVEFdyFfc811JmmTGduu-tfN3CkVXLhKQp73nJdzAHhL8DHBuD0phArCECYUYUEJYs_AAemERASzH8_rXbQc8VbKl-BVKTuMRdvi9gA8fAk2pzLl2U5z1gP0v9MwTyFFqKODIU4-j37SwxAs7FMe9f4vRHg6oO52-gCvAsLH-9u5h5VL99DNHk4JbrOuXPZ9iD7v5cbkQh-Wh3NhESqvwYteD8W_eTw34Pv5x29nn9Dl14vPZ6eXyHJCJuQFJqRhQjhjjOWmZwaTzgndWWk66R3mtLeya6h2tGmcM95z7ByzrOmFZGwDjlbdWx17Hbdql-Ycq6Myu187d3dnlKc1PdxVo0ofrvR1TjezL5MaQ7F-GHT0aS6qpkkYbWXHK_r-H_RJmUoiOcesVrABZKWWsEuNRF3nMOp8rwhWS4FqLVDVFdRSoFpWputMqWzc-vxX-X9D7x6Nfqa4valzT06cig5TKtkfWfWpWg</recordid><startdate>20120801</startdate><enddate>20120801</enddate><creator>Hassani, Amir</creator><creator>Ranjbar, Khalil</creator><creator>Sami, Sattar</creator><general>University of Science and Technology Beijing</general><general>Springer Nature B.V</general><general>Faulty of Materials Science and Engineering, University of Semnan, Semnan, Iran%Materials Department, Faculty of Engineering, Shahid Chamran University, Ahwaz, Iran</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>PCBAR</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>7QF</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20120801</creationdate><title>Microstructural evolution and intermetallic formation in Al-8wt% Si-0.8wt% Fe alloy due to grain refiner and modifier additions</title><author>Hassani, Amir ; 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Apart from usual refinement and modification of the microstructure, some mutual influences of the additives took place, and no mutual poisoning effects by these additives, in combined form, were observed. It was noticed that the dimensions of the iron-rich intermetallics were influenced by the additives causing them to become larger. The needle-shaped intermetallics that were obtained from refiner addition became thicker and longer when adding the modifier. It was also found that a-Al and eutectic silicon phases preferentially nucleate on different types of intermetallic compounds. The more iron content of the intermetallic compounds and the more changes in their dimensions occurred. Formation of the shrinkage porosities was also observed.</abstract><cop>Springer Berlin Heidelberg</cop><pub>University of Science and Technology Beijing</pub><doi>10.1007/s12613-012-0621-3</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1674-4799 |
| ispartof | International journal of minerals, metallurgy and materials, 2012-08, Vol.19 (8), p.739-746 |
| issn | 1674-4799 1869-103X |
| language | eng |
| recordid | cdi_wanfang_journals_bjkjdxxb_e201208011 |
| source | SpringerNature Journals; ProQuest Central UK/Ireland; Alma/SFX Local Collection; ProQuest Central |
| subjects | Additives Alloying additive Aluminum Aluminum base alloys Ceramics Characterization and Evaluation of Materials Chemistry and Materials Science Composites Corrosion and Coatings Ferrous alloys Glass Grain refinement Intermetallic compounds Intermetallics Iron Materials Science Metallic Materials Metallurgy Microstructure Natural Materials Silicon Surfaces and Interfaces Thin Films Tribology 合金 改性剂 晶粒细化剂 添加剂 组织演变 重量 金属间化合物 |
| title | Microstructural evolution and intermetallic formation in Al-8wt% Si-0.8wt% Fe alloy due to grain refiner and modifier additions |
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