Influence of ultrasonic melt treatment on microstructure and mechanical properties of AlSi9Cu3 alloy
A novel MMM (Multi-frequency, Multimode, Modulated) ultrasonic (US) technology was used to refine the as cast microstructure and improve the mechanical properties of a AlSi9Cu3 alloy. Ultrasonic vibration was isothermally applied to the melt for 120 s at different temperatures slightly above the liq...
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| Veröffentlicht in: | Journal of materials processing technology 2011-11, Vol.211 (11), p.1729-1735 |
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| container_issue | 11 |
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| container_title | Journal of materials processing technology |
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| creator | Puga, H. Costa, S. Barbosa, J. Ribeiro, S. Prokic, M. |
| description | A novel MMM (Multi-frequency, Multimode, Modulated) ultrasonic (US) technology was used to refine the as cast microstructure and improve the mechanical properties of a AlSi9Cu3 alloy. Ultrasonic vibration was isothermally applied to the melt for 120
s at different temperatures slightly above the
liquidus temperature of the alloy, using different electric power values, before pouring into a metallic mould. The microstructure of the cast samples was characterized by optical and scanning electron microscopy and energy dispersive spectrometry. Ultrasonic vibration promoted the formation of small
α-Al globular grains, changed the size and morphology of intermetallic compounds and distributed them uniformly throughout the castings. Ultimate tensile strength and strain were increased to 332
MPa and 2.9%, respectively, which are 50% and 480% higher than the values obtained for castings produced without vibration. The microstructure morphology and the alloy mechanical properties were found to depend on the electric power and the melt temperature, and by using a suitable combination of these parameters it is possible to achieve high refinement efficiency by treating the melts in the liquid state. |
| doi_str_mv | 10.1016/j.jmatprotec.2011.05.012 |
| format | Article |
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s at different temperatures slightly above the
liquidus temperature of the alloy, using different electric power values, before pouring into a metallic mould. The microstructure of the cast samples was characterized by optical and scanning electron microscopy and energy dispersive spectrometry. Ultrasonic vibration promoted the formation of small
α-Al globular grains, changed the size and morphology of intermetallic compounds and distributed them uniformly throughout the castings. Ultimate tensile strength and strain were increased to 332
MPa and 2.9%, respectively, which are 50% and 480% higher than the values obtained for castings produced without vibration. The microstructure morphology and the alloy mechanical properties were found to depend on the electric power and the melt temperature, and by using a suitable combination of these parameters it is possible to achieve high refinement efficiency by treating the melts in the liquid state.</description><identifier>ISSN: 0924-0136</identifier><identifier>DOI: 10.1016/j.jmatprotec.2011.05.012</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Alloying elements ; Aluminum alloys ; Aluminum base alloys ; Casting ; Castings ; Electric power ; Mechanical properties ; Melts ; Microstructure ; Morphology ; Refinement ; Ultrasonic vibration ; Ultrasound</subject><ispartof>Journal of materials processing technology, 2011-11, Vol.211 (11), p.1729-1735</ispartof><rights>2011 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c491t-2c61ed9fca362dd6e21f476e4dd924db5686fe2909ef8c95e30ae9cb203a5c1a3</citedby><cites>FETCH-LOGICAL-c491t-2c61ed9fca362dd6e21f476e4dd924db5686fe2909ef8c95e30ae9cb203a5c1a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jmatprotec.2011.05.012$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Puga, H.</creatorcontrib><creatorcontrib>Costa, S.</creatorcontrib><creatorcontrib>Barbosa, J.</creatorcontrib><creatorcontrib>Ribeiro, S.</creatorcontrib><creatorcontrib>Prokic, M.</creatorcontrib><title>Influence of ultrasonic melt treatment on microstructure and mechanical properties of AlSi9Cu3 alloy</title><title>Journal of materials processing technology</title><description>A novel MMM (Multi-frequency, Multimode, Modulated) ultrasonic (US) technology was used to refine the as cast microstructure and improve the mechanical properties of a AlSi9Cu3 alloy. Ultrasonic vibration was isothermally applied to the melt for 120
s at different temperatures slightly above the
liquidus temperature of the alloy, using different electric power values, before pouring into a metallic mould. The microstructure of the cast samples was characterized by optical and scanning electron microscopy and energy dispersive spectrometry. Ultrasonic vibration promoted the formation of small
α-Al globular grains, changed the size and morphology of intermetallic compounds and distributed them uniformly throughout the castings. Ultimate tensile strength and strain were increased to 332
MPa and 2.9%, respectively, which are 50% and 480% higher than the values obtained for castings produced without vibration. The microstructure morphology and the alloy mechanical properties were found to depend on the electric power and the melt temperature, and by using a suitable combination of these parameters it is possible to achieve high refinement efficiency by treating the melts in the liquid state.</description><subject>Alloying elements</subject><subject>Aluminum alloys</subject><subject>Aluminum base alloys</subject><subject>Casting</subject><subject>Castings</subject><subject>Electric power</subject><subject>Mechanical properties</subject><subject>Melts</subject><subject>Microstructure</subject><subject>Morphology</subject><subject>Refinement</subject><subject>Ultrasonic vibration</subject><subject>Ultrasound</subject><issn>0924-0136</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkD9PwzAUxDOARCl8B29MCbaTOPFYKv5UqsQAzJZrPwtHTlxsB6nfHkdFYmR6y929u19RIIIrggm7H6phlOkYfAJVUUxIhdsKE3pRrDCnTYlJza6K6xgHjEmH-35V6N1k3AyTAuQNml0KMvrJKjSCSygFkGmEKSE_odGq4GMKs0pzACQnnUXqU2a1dCh_PUJIFuIStHFvlm_nGknn_OmmuDTSRbj9vevi4-nxfftS7l-fd9vNvlQNJ6mkihHQ3ChZM6o1A0pM0zFotM7t9aFlPTNAOeZgesVbqLEErg4U17JVRNbr4u6cm8t8zRCTGG1U4JycwM9RcMJ53XYdzsr-rFwmxQBGHIMdZTgJgsXCUgzij6VYWArciswyWx_OVshLvi0EEZVdAGobQCWhvf0_5Afkg4dc</recordid><startdate>20111101</startdate><enddate>20111101</enddate><creator>Puga, H.</creator><creator>Costa, S.</creator><creator>Barbosa, J.</creator><creator>Ribeiro, S.</creator><creator>Prokic, M.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20111101</creationdate><title>Influence of ultrasonic melt treatment on microstructure and mechanical properties of AlSi9Cu3 alloy</title><author>Puga, H. ; Costa, S. ; Barbosa, J. ; Ribeiro, S. ; Prokic, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c491t-2c61ed9fca362dd6e21f476e4dd924db5686fe2909ef8c95e30ae9cb203a5c1a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Alloying elements</topic><topic>Aluminum alloys</topic><topic>Aluminum base alloys</topic><topic>Casting</topic><topic>Castings</topic><topic>Electric power</topic><topic>Mechanical properties</topic><topic>Melts</topic><topic>Microstructure</topic><topic>Morphology</topic><topic>Refinement</topic><topic>Ultrasonic vibration</topic><topic>Ultrasound</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Puga, H.</creatorcontrib><creatorcontrib>Costa, S.</creatorcontrib><creatorcontrib>Barbosa, J.</creatorcontrib><creatorcontrib>Ribeiro, S.</creatorcontrib><creatorcontrib>Prokic, M.</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of materials processing technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Puga, H.</au><au>Costa, S.</au><au>Barbosa, J.</au><au>Ribeiro, S.</au><au>Prokic, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of ultrasonic melt treatment on microstructure and mechanical properties of AlSi9Cu3 alloy</atitle><jtitle>Journal of materials processing technology</jtitle><date>2011-11-01</date><risdate>2011</risdate><volume>211</volume><issue>11</issue><spage>1729</spage><epage>1735</epage><pages>1729-1735</pages><issn>0924-0136</issn><abstract>A novel MMM (Multi-frequency, Multimode, Modulated) ultrasonic (US) technology was used to refine the as cast microstructure and improve the mechanical properties of a AlSi9Cu3 alloy. Ultrasonic vibration was isothermally applied to the melt for 120
s at different temperatures slightly above the
liquidus temperature of the alloy, using different electric power values, before pouring into a metallic mould. The microstructure of the cast samples was characterized by optical and scanning electron microscopy and energy dispersive spectrometry. Ultrasonic vibration promoted the formation of small
α-Al globular grains, changed the size and morphology of intermetallic compounds and distributed them uniformly throughout the castings. Ultimate tensile strength and strain were increased to 332
MPa and 2.9%, respectively, which are 50% and 480% higher than the values obtained for castings produced without vibration. The microstructure morphology and the alloy mechanical properties were found to depend on the electric power and the melt temperature, and by using a suitable combination of these parameters it is possible to achieve high refinement efficiency by treating the melts in the liquid state.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.jmatprotec.2011.05.012</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of materials processing technology, 2011-11, Vol.211 (11), p.1729-1735 |
| issn | 0924-0136 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Alloying elements Aluminum alloys Aluminum base alloys Casting Castings Electric power Mechanical properties Melts Microstructure Morphology Refinement Ultrasonic vibration Ultrasound |
| title | Influence of ultrasonic melt treatment on microstructure and mechanical properties of AlSi9Cu3 alloy |
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