Effects of samarium addition on microstructure and mechanical properties of as-cast Al-Si-Cu alloy
The effects of rare earth samarium (Sm) additions on the microstructure and mechanical properties of as-cast Al-Si-Cu alloy were investigated by optical microscopy and scanning electron microscopy (SEM). The results show that Sm can effectively refine the α(Al) dendrite and the eutectic silicon. In...
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| Veröffentlicht in: | Transactions of Nonferrous Metals Society of China 2013-11, Vol.23 (11), p.3228-3234 |
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| creator | HU, Zhi YAN, Hong RAO, Yuan-sheng |
| description | The effects of rare earth samarium (Sm) additions on the microstructure and mechanical properties of as-cast Al-Si-Cu alloy were investigated by optical microscopy and scanning electron microscopy (SEM). The results show that Sm can effectively refine the α(Al) dendrite and the eutectic silicon. In addition, the shape of iron-rich phases changes from the Chinese script-like to slender-like ones and the volume fraction of iron-rich phases is decreased by the addition of Sm. Two kinds of Sm-rich intermetallics are found: AlSiSm and AlSiCuSm. The plate-like AlSiCuSm phase always associates with the needle-like AlSiSm phase. The mechanical properties are improved by the addition of Sm, and the good ultimate tensile strength (220 MPa) and elongation (3.1%) are obtained from the Al-Si-Cu-1.0Sm alloy. |
| doi_str_mv | 10.1016/S1003-6326(13)62857-5 |
| format | Article |
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The results show that Sm can effectively refine the α(Al) dendrite and the eutectic silicon. In addition, the shape of iron-rich phases changes from the Chinese script-like to slender-like ones and the volume fraction of iron-rich phases is decreased by the addition of Sm. Two kinds of Sm-rich intermetallics are found: AlSiSm and AlSiCuSm. The plate-like AlSiCuSm phase always associates with the needle-like AlSiSm phase. The mechanical properties are improved by the addition of Sm, and the good ultimate tensile strength (220 MPa) and elongation (3.1%) are obtained from the Al-Si-Cu-1.0Sm alloy.</description><identifier>ISSN: 1003-6326</identifier><identifier>DOI: 10.1016/S1003-6326(13)62857-5</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Alloying additive ; aluminum alloys ; ALUMINUM ALLOYS (50 TO 99 AL) ; Aluminum base alloys ; Copper ; INTERMETALLIC COMPOUNDS ; MECHANICAL PROPERTIES ; Microstructure ; MICROSTRUCTURES ; PHASES ; PROPERTIES ; rare earth ; Rare earth metals ; Samarium ; Scanning electron microscopy ; Silicon ; Ternary systems</subject><ispartof>Transactions of Nonferrous Metals Society of China, 2013-11, Vol.23 (11), p.3228-3234</ispartof><rights>2013 The Nonferrous Metals Society of China</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c342t-bc00415b39947cd279d1619ae60cd427be2efd6e24c4299fa0114cd428bc8b233</citedby><cites>FETCH-LOGICAL-c342t-bc00415b39947cd279d1619ae60cd427be2efd6e24c4299fa0114cd428bc8b233</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1003632613628575$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids></links><search><creatorcontrib>HU, Zhi</creatorcontrib><creatorcontrib>YAN, Hong</creatorcontrib><creatorcontrib>RAO, Yuan-sheng</creatorcontrib><title>Effects of samarium addition on microstructure and mechanical properties of as-cast Al-Si-Cu alloy</title><title>Transactions of Nonferrous Metals Society of China</title><description>The effects of rare earth samarium (Sm) additions on the microstructure and mechanical properties of as-cast Al-Si-Cu alloy were investigated by optical microscopy and scanning electron microscopy (SEM). The results show that Sm can effectively refine the α(Al) dendrite and the eutectic silicon. In addition, the shape of iron-rich phases changes from the Chinese script-like to slender-like ones and the volume fraction of iron-rich phases is decreased by the addition of Sm. Two kinds of Sm-rich intermetallics are found: AlSiSm and AlSiCuSm. The plate-like AlSiCuSm phase always associates with the needle-like AlSiSm phase. The mechanical properties are improved by the addition of Sm, and the good ultimate tensile strength (220 MPa) and elongation (3.1%) are obtained from the Al-Si-Cu-1.0Sm alloy.</description><subject>Alloying additive</subject><subject>aluminum alloys</subject><subject>ALUMINUM ALLOYS (50 TO 99 AL)</subject><subject>Aluminum base alloys</subject><subject>Copper</subject><subject>INTERMETALLIC COMPOUNDS</subject><subject>MECHANICAL PROPERTIES</subject><subject>Microstructure</subject><subject>MICROSTRUCTURES</subject><subject>PHASES</subject><subject>PROPERTIES</subject><subject>rare earth</subject><subject>Rare earth metals</subject><subject>Samarium</subject><subject>Scanning electron microscopy</subject><subject>Silicon</subject><subject>Ternary systems</subject><issn>1003-6326</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLAzEUhbNQsFZ_gpBlXUTzmkxnJaXUBxRcVNchk9zByDxqkhH678204la4cOE-Dud8CN0wescoU_c7RqkgSnC1YOJW8WVRkuIMzf7GF-gyxk9KpVSKzVC9aRqwKeKhwdF0Jvixw8Y5n_zQ41ydt2GIKYw2jQGw6R3uwH6Y3lvT4n0Y9hCSh6OAicSamPCqJTtP1iM2bTscrtB5Y9oI1799jt4fN2_rZ7J9fXpZr7bECskTqW02xYpaVJUsreNl5ZhilQFFrZO8rIFD4xRwaSWvqsZQxuS0WdZ2WXMh5mhx0s2mvkaISXc-Wmhb08MwRs0KwShXSk2nxel0yhYDNHoffA5_0IzqiaM-ctQTMM1ynzjqIv89nP4g5_j2EHS0HnoLzodMUbvB_6PwAwHXfK8</recordid><startdate>201311</startdate><enddate>201311</enddate><creator>HU, Zhi</creator><creator>YAN, Hong</creator><creator>RAO, Yuan-sheng</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8G</scope><scope>JG9</scope></search><sort><creationdate>201311</creationdate><title>Effects of samarium addition on microstructure and mechanical properties of as-cast Al-Si-Cu alloy</title><author>HU, Zhi ; YAN, Hong ; RAO, Yuan-sheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c342t-bc00415b39947cd279d1619ae60cd427be2efd6e24c4299fa0114cd428bc8b233</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Alloying additive</topic><topic>aluminum alloys</topic><topic>ALUMINUM ALLOYS (50 TO 99 AL)</topic><topic>Aluminum base alloys</topic><topic>Copper</topic><topic>INTERMETALLIC COMPOUNDS</topic><topic>MECHANICAL PROPERTIES</topic><topic>Microstructure</topic><topic>MICROSTRUCTURES</topic><topic>PHASES</topic><topic>PROPERTIES</topic><topic>rare earth</topic><topic>Rare earth metals</topic><topic>Samarium</topic><topic>Scanning electron microscopy</topic><topic>Silicon</topic><topic>Ternary systems</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>HU, Zhi</creatorcontrib><creatorcontrib>YAN, Hong</creatorcontrib><creatorcontrib>RAO, Yuan-sheng</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><jtitle>Transactions of Nonferrous Metals Society of China</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>HU, Zhi</au><au>YAN, Hong</au><au>RAO, Yuan-sheng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of samarium addition on microstructure and mechanical properties of as-cast Al-Si-Cu alloy</atitle><jtitle>Transactions of Nonferrous Metals Society of China</jtitle><date>2013-11</date><risdate>2013</risdate><volume>23</volume><issue>11</issue><spage>3228</spage><epage>3234</epage><pages>3228-3234</pages><issn>1003-6326</issn><abstract>The effects of rare earth samarium (Sm) additions on the microstructure and mechanical properties of as-cast Al-Si-Cu alloy were investigated by optical microscopy and scanning electron microscopy (SEM). The results show that Sm can effectively refine the α(Al) dendrite and the eutectic silicon. In addition, the shape of iron-rich phases changes from the Chinese script-like to slender-like ones and the volume fraction of iron-rich phases is decreased by the addition of Sm. Two kinds of Sm-rich intermetallics are found: AlSiSm and AlSiCuSm. The plate-like AlSiCuSm phase always associates with the needle-like AlSiSm phase. The mechanical properties are improved by the addition of Sm, and the good ultimate tensile strength (220 MPa) and elongation (3.1%) are obtained from the Al-Si-Cu-1.0Sm alloy.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/S1003-6326(13)62857-5</doi><tpages>7</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete; Alma/SFX Local Collection |
| subjects | Alloying additive aluminum alloys ALUMINUM ALLOYS (50 TO 99 AL) Aluminum base alloys Copper INTERMETALLIC COMPOUNDS MECHANICAL PROPERTIES Microstructure MICROSTRUCTURES PHASES PROPERTIES rare earth Rare earth metals Samarium Scanning electron microscopy Silicon Ternary systems |
| title | Effects of samarium addition on microstructure and mechanical properties of as-cast Al-Si-Cu alloy |
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