Phase precipitation in transition metal-containing 354-type alloys
The present study was carried out to investigate the effects of Ni, Mn, Zr, and Sc additions, individually or in combination, on the microstructure of 354 casting alloy (Al-9 wt.% Si-1.8 wt.% Cu-0.5 wt.% Mg). Microstructural examination and thermal analysis data showed that the main reactions detect...
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Veröffentlicht in: | International journal of materials research 2017-02, Vol.108 (2), p.108-125 |
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creator | Garza-Elizondo, Guillermo H. Samuel, Agnes M. Valtierra, Salvador Samuel, Fawzy H. |
description | The present study was carried out to investigate the effects of Ni, Mn, Zr, and Sc additions, individually or in combination, on the microstructure of 354 casting alloy (Al-9 wt.% Si-1.8 wt.% Cu-0.5 wt.% Mg). Microstructural examination and thermal analysis data showed that the main reactions detected during the solidification of the six 354 alloys (G1, G6–G10) investigated are: formation of the α-Al dendritic network; precipitation of Al-Si eutectic and post-eutectic β-Al
FeSi; Mg
Si phase; transformation of the β-phase into π-Al
Mg
FeSi
phase; and precipitation of Al
Cu and Q-Al
Mg
Cu
Si
phases. With 2 wt.% Ni addition, the formation of Al
FeNi and Al
CuNi phases is observed. In the base 354 alloy the main phases are restricted to Cu-, Mg-, and Fe-rich intermetallic phases. The Si particle characteristics and volume fraction of intermetallics are influenced by the solidification rate and Mg level, whereas addition of Fe and/or Mn has no significant influence. In alloy G9, Fe, Mn and Ni interact to form new intermetallic phases. An increased Fe content leads to formation of polyhedral/star-like sludge particles in addition to α-Fe and β-Al
FeSi phases; the presence of the hard sludge particles within the soft α-Al dendrites improves the alloy properties. |
doi_str_mv | 10.3139/146.111455 |
format | Article |
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FeSi; Mg
Si phase; transformation of the β-phase into π-Al
Mg
FeSi
phase; and precipitation of Al
Cu and Q-Al
Mg
Cu
Si
phases. With 2 wt.% Ni addition, the formation of Al
FeNi and Al
CuNi phases is observed. In the base 354 alloy the main phases are restricted to Cu-, Mg-, and Fe-rich intermetallic phases. The Si particle characteristics and volume fraction of intermetallics are influenced by the solidification rate and Mg level, whereas addition of Fe and/or Mn has no significant influence. In alloy G9, Fe, Mn and Ni interact to form new intermetallic phases. An increased Fe content leads to formation of polyhedral/star-like sludge particles in addition to α-Fe and β-Al
FeSi phases; the presence of the hard sludge particles within the soft α-Al dendrites improves the alloy properties.</description><identifier>ISSN: 1862-5282</identifier><identifier>EISSN: 2195-8556</identifier><identifier>DOI: 10.3139/146.111455</identifier><language>eng</language><publisher>De Gruyter</publisher><subject>Aluminum alloys ; Aluminum base alloys ; Formations ; Intermetallic compounds ; Intermetallic phases ; Intermetallics ; Manganese ; Microstructure ; Phase identification and quantification ; Phase transformations ; Precipitation (chemistry) ; Sludge ; Solidification ; Thermal analysis</subject><ispartof>International journal of materials research, 2017-02, Vol.108 (2), p.108-125</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c384t-8e29e64760917621185251d14048719a117449695d2f1ad31642fc8a291132383</citedby><cites>FETCH-LOGICAL-c384t-8e29e64760917621185251d14048719a117449695d2f1ad31642fc8a291132383</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.degruyter.com/document/doi/10.3139/146.111455/pdf$$EPDF$$P50$$Gwalterdegruyter$$H</linktopdf><linktohtml>$$Uhttps://www.degruyter.com/document/doi/10.3139/146.111455/html$$EHTML$$P50$$Gwalterdegruyter$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,66501,68285</link.rule.ids></links><search><creatorcontrib>Garza-Elizondo, Guillermo H.</creatorcontrib><creatorcontrib>Samuel, Agnes M.</creatorcontrib><creatorcontrib>Valtierra, Salvador</creatorcontrib><creatorcontrib>Samuel, Fawzy H.</creatorcontrib><title>Phase precipitation in transition metal-containing 354-type alloys</title><title>International journal of materials research</title><description>The present study was carried out to investigate the effects of Ni, Mn, Zr, and Sc additions, individually or in combination, on the microstructure of 354 casting alloy (Al-9 wt.% Si-1.8 wt.% Cu-0.5 wt.% Mg). Microstructural examination and thermal analysis data showed that the main reactions detected during the solidification of the six 354 alloys (G1, G6–G10) investigated are: formation of the α-Al dendritic network; precipitation of Al-Si eutectic and post-eutectic β-Al
FeSi; Mg
Si phase; transformation of the β-phase into π-Al
Mg
FeSi
phase; and precipitation of Al
Cu and Q-Al
Mg
Cu
Si
phases. With 2 wt.% Ni addition, the formation of Al
FeNi and Al
CuNi phases is observed. In the base 354 alloy the main phases are restricted to Cu-, Mg-, and Fe-rich intermetallic phases. The Si particle characteristics and volume fraction of intermetallics are influenced by the solidification rate and Mg level, whereas addition of Fe and/or Mn has no significant influence. In alloy G9, Fe, Mn and Ni interact to form new intermetallic phases. An increased Fe content leads to formation of polyhedral/star-like sludge particles in addition to α-Fe and β-Al
FeSi phases; the presence of the hard sludge particles within the soft α-Al dendrites improves the alloy properties.</description><subject>Aluminum alloys</subject><subject>Aluminum base alloys</subject><subject>Formations</subject><subject>Intermetallic compounds</subject><subject>Intermetallic phases</subject><subject>Intermetallics</subject><subject>Manganese</subject><subject>Microstructure</subject><subject>Phase identification and quantification</subject><subject>Phase transformations</subject><subject>Precipitation (chemistry)</subject><subject>Sludge</subject><subject>Solidification</subject><subject>Thermal analysis</subject><issn>1862-5282</issn><issn>2195-8556</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNptkE1LxDAQhoMouK5e_AU9itC1k68mR138ggU96DmENl2zpElNUqT_3mo9ehhmXnhmYB6ELqHaECDyBijfAABl7AitMEhWCsb4MVqB4LhkWOBTdJbSoaoY8Bqv0N3rh06mGKJp7GCzzjb4wvoiR-2T_U29ydqVTfBZW2_9viCMlnkaTKGdC1M6Ryeddslc_PU1en-4f9s-lbuXx-ft7a5siKC5FAZLw2nNKwk1xwCCYQYt0IqKGqQGqCmVXLIWd6BbApzirhEaSwCCiSBrdLXcHWL4HE3KqrepMc5pb8KYFAhBAUsG9YxeL2gTQ0rRdGqIttdxUlCpH1FqFqUWUTMsF_hLu2xia_ZxnOZBHcIY_fzRP0tQCTwX-QZASGmt</recordid><startdate>20170201</startdate><enddate>20170201</enddate><creator>Garza-Elizondo, Guillermo H.</creator><creator>Samuel, Agnes M.</creator><creator>Valtierra, Salvador</creator><creator>Samuel, Fawzy H.</creator><general>De Gruyter</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>20170201</creationdate><title>Phase precipitation in transition metal-containing 354-type alloys</title><author>Garza-Elizondo, Guillermo H. ; Samuel, Agnes M. ; Valtierra, Salvador ; Samuel, Fawzy H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c384t-8e29e64760917621185251d14048719a117449695d2f1ad31642fc8a291132383</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Aluminum alloys</topic><topic>Aluminum base alloys</topic><topic>Formations</topic><topic>Intermetallic compounds</topic><topic>Intermetallic phases</topic><topic>Intermetallics</topic><topic>Manganese</topic><topic>Microstructure</topic><topic>Phase identification and quantification</topic><topic>Phase transformations</topic><topic>Precipitation (chemistry)</topic><topic>Sludge</topic><topic>Solidification</topic><topic>Thermal analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Garza-Elizondo, Guillermo H.</creatorcontrib><creatorcontrib>Samuel, Agnes M.</creatorcontrib><creatorcontrib>Valtierra, Salvador</creatorcontrib><creatorcontrib>Samuel, Fawzy H.</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>International journal of materials research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Garza-Elizondo, Guillermo H.</au><au>Samuel, Agnes M.</au><au>Valtierra, Salvador</au><au>Samuel, Fawzy H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Phase precipitation in transition metal-containing 354-type alloys</atitle><jtitle>International journal of materials research</jtitle><date>2017-02-01</date><risdate>2017</risdate><volume>108</volume><issue>2</issue><spage>108</spage><epage>125</epage><pages>108-125</pages><issn>1862-5282</issn><eissn>2195-8556</eissn><abstract>The present study was carried out to investigate the effects of Ni, Mn, Zr, and Sc additions, individually or in combination, on the microstructure of 354 casting alloy (Al-9 wt.% Si-1.8 wt.% Cu-0.5 wt.% Mg). Microstructural examination and thermal analysis data showed that the main reactions detected during the solidification of the six 354 alloys (G1, G6–G10) investigated are: formation of the α-Al dendritic network; precipitation of Al-Si eutectic and post-eutectic β-Al
FeSi; Mg
Si phase; transformation of the β-phase into π-Al
Mg
FeSi
phase; and precipitation of Al
Cu and Q-Al
Mg
Cu
Si
phases. With 2 wt.% Ni addition, the formation of Al
FeNi and Al
CuNi phases is observed. In the base 354 alloy the main phases are restricted to Cu-, Mg-, and Fe-rich intermetallic phases. The Si particle characteristics and volume fraction of intermetallics are influenced by the solidification rate and Mg level, whereas addition of Fe and/or Mn has no significant influence. In alloy G9, Fe, Mn and Ni interact to form new intermetallic phases. An increased Fe content leads to formation of polyhedral/star-like sludge particles in addition to α-Fe and β-Al
FeSi phases; the presence of the hard sludge particles within the soft α-Al dendrites improves the alloy properties.</abstract><pub>De Gruyter</pub><doi>10.3139/146.111455</doi><tpages>18</tpages></addata></record> |
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subjects | Aluminum alloys Aluminum base alloys Formations Intermetallic compounds Intermetallic phases Intermetallics Manganese Microstructure Phase identification and quantification Phase transformations Precipitation (chemistry) Sludge Solidification Thermal analysis |
title | Phase precipitation in transition metal-containing 354-type alloys |
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