Interaction between L2 droplets and L1/L interface in solidifying Al–Bi immiscible alloy
Using synchrotron radiography, we observed the advancing L1/L interface and its interaction with L2 droplets during directional solidification of the Al-10wt% Bi immiscible alloy. Five forces act upon L2 droplets in front of the L1/L interface. The repulsive force that pushes the droplets away from...
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| Veröffentlicht in: | Materials letters 2016-11, Vol.182, p.351-354 |
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| creator | Lu, W.Q. Zhang, S.G. Hu, Q.D. Li, J.G. |
| description | Using synchrotron radiography, we observed the advancing L1/L interface and its interaction with L2 droplets during directional solidification of the Al-10wt% Bi immiscible alloy. Five forces act upon L2 droplets in front of the L1/L interface. The repulsive force that pushes the droplets away from the interface is the largest force when the droplet radius (r) is smaller than 20.5µm, while Marangoni force is the largest one when 20.5µm |
| doi_str_mv | 10.1016/j.matlet.2016.06.124 |
| format | Article |
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•The structural evolution in solidifying Al-10wt% Bi alloy was in situ observed.•Five forces acted upon L2 droplets in front of the L1/L interface.•The droplets were dominated by the repulsive force at early stage.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2016.06.124</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Aluminum base alloys ; Bismuth ; Decomposition ; Directional solidification ; Drag force ; Droplets ; Interfaces ; Metal and alloys ; Pushing ; Radiography ; Resultants ; Synchrotron radiography ; Synchrotrons</subject><ispartof>Materials letters, 2016-11, Vol.182, p.351-354</ispartof><rights>2016 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0167577X16310904$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Lu, W.Q.</creatorcontrib><creatorcontrib>Zhang, S.G.</creatorcontrib><creatorcontrib>Hu, Q.D.</creatorcontrib><creatorcontrib>Li, J.G.</creatorcontrib><title>Interaction between L2 droplets and L1/L interface in solidifying Al–Bi immiscible alloy</title><title>Materials letters</title><description>Using synchrotron radiography, we observed the advancing L1/L interface and its interaction with L2 droplets during directional solidification of the Al-10wt% Bi immiscible alloy. Five forces act upon L2 droplets in front of the L1/L interface. The repulsive force that pushes the droplets away from the interface is the largest force when the droplet radius (r) is smaller than 20.5µm, while Marangoni force is the largest one when 20.5µm <r<89µm. And the resultant force that is responsible for the pushing of the droplets is larger than the drag force when r<141.5µm, leading to upward movement of L2 droplets.
•The structural evolution in solidifying Al-10wt% Bi alloy was in situ observed.•Five forces acted upon L2 droplets in front of the L1/L interface.•The droplets were dominated by the repulsive force at early stage.</description><subject>Aluminum base alloys</subject><subject>Bismuth</subject><subject>Decomposition</subject><subject>Directional solidification</subject><subject>Drag force</subject><subject>Droplets</subject><subject>Interfaces</subject><subject>Metal and alloys</subject><subject>Pushing</subject><subject>Radiography</subject><subject>Resultants</subject><subject>Synchrotron radiography</subject><subject>Synchrotrons</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNotkM9KxDAQh4MouK6-gYccvbSbSdIkvQir-Geh4EVBvIS0nUqWbLu2XWVvvoNv6JOYsp5mhvnx4-Mj5BJYCgzUYp1u3BhwTHm8UqZS4PKIzMBokchc58dkFh86ybR-PSVnw7BmjMmcyRl5W7Uj9q4afdfSEscvxJYWnNZ9t42NA3VtTQtYFNRPwcZVGDc6dMHXvtn79p0uw-_3z42nfrPxQ-XLgNSF0O3PyUnjwoAX_3NOXu7vnm8fk-LpYXW7LBKEzIyJ1sBBCMl53lSZUK50HKR0Wd6AqaTKDefK5HUJusk0lqzhVQbSCcgcNw7EnFwderd997HDYbQTB4bgWux2gwUjMgVKGBWj14coRp5Pj72NwNhWWPseq9HWnbfA7CTVru1Bqp2kWqZslCr-AHTHbTs</recordid><startdate>20161101</startdate><enddate>20161101</enddate><creator>Lu, W.Q.</creator><creator>Zhang, S.G.</creator><creator>Hu, Q.D.</creator><creator>Li, J.G.</creator><general>Elsevier B.V</general><scope>7QF</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20161101</creationdate><title>Interaction between L2 droplets and L1/L interface in solidifying Al–Bi immiscible alloy</title><author>Lu, W.Q. ; Zhang, S.G. ; Hu, Q.D. ; Li, J.G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-e158t-77121334229fc536aba2144a59f18c469822689db17f57eb0f2c514a315a28a13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Aluminum base alloys</topic><topic>Bismuth</topic><topic>Decomposition</topic><topic>Directional solidification</topic><topic>Drag force</topic><topic>Droplets</topic><topic>Interfaces</topic><topic>Metal and alloys</topic><topic>Pushing</topic><topic>Radiography</topic><topic>Resultants</topic><topic>Synchrotron radiography</topic><topic>Synchrotrons</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lu, W.Q.</creatorcontrib><creatorcontrib>Zhang, S.G.</creatorcontrib><creatorcontrib>Hu, Q.D.</creatorcontrib><creatorcontrib>Li, J.G.</creatorcontrib><collection>Aluminium Industry Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lu, W.Q.</au><au>Zhang, S.G.</au><au>Hu, Q.D.</au><au>Li, J.G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Interaction between L2 droplets and L1/L interface in solidifying Al–Bi immiscible alloy</atitle><jtitle>Materials letters</jtitle><date>2016-11-01</date><risdate>2016</risdate><volume>182</volume><spage>351</spage><epage>354</epage><pages>351-354</pages><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>Using synchrotron radiography, we observed the advancing L1/L interface and its interaction with L2 droplets during directional solidification of the Al-10wt% Bi immiscible alloy. Five forces act upon L2 droplets in front of the L1/L interface. The repulsive force that pushes the droplets away from the interface is the largest force when the droplet radius (r) is smaller than 20.5µm, while Marangoni force is the largest one when 20.5µm <r<89µm. And the resultant force that is responsible for the pushing of the droplets is larger than the drag force when r<141.5µm, leading to upward movement of L2 droplets.
•The structural evolution in solidifying Al-10wt% Bi alloy was in situ observed.•Five forces acted upon L2 droplets in front of the L1/L interface.•The droplets were dominated by the repulsive force at early stage.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2016.06.124</doi><tpages>4</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Aluminum base alloys Bismuth Decomposition Directional solidification Drag force Droplets Interfaces Metal and alloys Pushing Radiography Resultants Synchrotron radiography Synchrotrons |
| title | Interaction between L2 droplets and L1/L interface in solidifying Al–Bi immiscible alloy |
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