Solidification paths and eutectic intermetallic phases in Mg–Al–Ca ternary alloys
The solidification of Mg–Al–Ca ternary alloys in the α-Mg solidification region was investigated by microstructural and thermal analysis, and the liquidus projection was determined. The liquidus temperature decreases with additions of Al and Ca. Solidification is terminated with the formation of C14...
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| Veröffentlicht in: | Acta materialia 2005-05, Vol.53 (9), p.2823-2834 |
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| container_title | Acta materialia |
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| creator | Suzuki, A. Saddock, N.D. Jones, J.W. Pollock, T.M. |
| description | The solidification of Mg–Al–Ca ternary alloys in the α-Mg solidification region was investigated by microstructural and thermal analysis, and the liquidus projection was determined. The liquidus temperature decreases with additions of Al and Ca. Solidification is terminated with the formation of C14 (Mg
2Ca), C36 ((Mg,Al)
2Ca) or A12 (β-Mg
17Al
12) eutectic compounds, in the order of increasing Al content. The L
→
α
+
C36 eutectic has a saddle point at 807
K, and with decreasing temperature, two ternary invariant transformations, L
→
α
+
C14
+
C36 (787
K) and L
+
C36
→
α
+
A12 (725
K) are observed. The stability of the intermetallic C36 phase during annealing at 573
K was examined in die-cast Mg–5Al–3Ca based alloys. The C36 phase transformed to the C15 (Al
2Ca) phase by a shear-assisted mechanism. |
| doi_str_mv | 10.1016/j.actamat.2005.03.001 |
| format | Article |
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2Ca), C36 ((Mg,Al)
2Ca) or A12 (β-Mg
17Al
12) eutectic compounds, in the order of increasing Al content. The L
→
α
+
C36 eutectic has a saddle point at 807
K, and with decreasing temperature, two ternary invariant transformations, L
→
α
+
C14
+
C36 (787
K) and L
+
C36
→
α
+
A12 (725
K) are observed. The stability of the intermetallic C36 phase during annealing at 573
K was examined in die-cast Mg–5Al–3Ca based alloys. The C36 phase transformed to the C15 (Al
2Ca) phase by a shear-assisted mechanism.</description><identifier>ISSN: 1359-6454</identifier><identifier>EISSN: 1873-2453</identifier><identifier>DOI: 10.1016/j.actamat.2005.03.001</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Aluminum ; Applied sciences ; Eutectic temperature ; Exact sciences and technology ; Invariants ; Laves phases ; Liquidus ; Liquidus projection ; Magnesium alloys ; Magnesium base alloys ; Metals. Metallurgy ; Phase transformations ; Solidification ; TEM ; Ternary alloys</subject><ispartof>Acta materialia, 2005-05, Vol.53 (9), p.2823-2834</ispartof><rights>2005 Acta Materialia Inc.</rights><rights>2005 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c500t-bee9b82b66ccabb1f8535eb934b5d8855f0e76d853b028175d7d03a462c4a11f3</citedby><cites>FETCH-LOGICAL-c500t-bee9b82b66ccabb1f8535eb934b5d8855f0e76d853b028175d7d03a462c4a11f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1359645405001448$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16757170$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Suzuki, A.</creatorcontrib><creatorcontrib>Saddock, N.D.</creatorcontrib><creatorcontrib>Jones, J.W.</creatorcontrib><creatorcontrib>Pollock, T.M.</creatorcontrib><title>Solidification paths and eutectic intermetallic phases in Mg–Al–Ca ternary alloys</title><title>Acta materialia</title><description>The solidification of Mg–Al–Ca ternary alloys in the α-Mg solidification region was investigated by microstructural and thermal analysis, and the liquidus projection was determined. The liquidus temperature decreases with additions of Al and Ca. Solidification is terminated with the formation of C14 (Mg
2Ca), C36 ((Mg,Al)
2Ca) or A12 (β-Mg
17Al
12) eutectic compounds, in the order of increasing Al content. The L
→
α
+
C36 eutectic has a saddle point at 807
K, and with decreasing temperature, two ternary invariant transformations, L
→
α
+
C14
+
C36 (787
K) and L
+
C36
→
α
+
A12 (725
K) are observed. The stability of the intermetallic C36 phase during annealing at 573
K was examined in die-cast Mg–5Al–3Ca based alloys. The C36 phase transformed to the C15 (Al
2Ca) phase by a shear-assisted mechanism.</description><subject>Aluminum</subject><subject>Applied sciences</subject><subject>Eutectic temperature</subject><subject>Exact sciences and technology</subject><subject>Invariants</subject><subject>Laves phases</subject><subject>Liquidus</subject><subject>Liquidus projection</subject><subject>Magnesium alloys</subject><subject>Magnesium base alloys</subject><subject>Metals. Metallurgy</subject><subject>Phase transformations</subject><subject>Solidification</subject><subject>TEM</subject><subject>Ternary alloys</subject><issn>1359-6454</issn><issn>1873-2453</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqFkc9q3DAQxk1JoJs_j1DwJaUXOyNLsrynEpY0LSTkkOQsxvK4q8VrbyRtIbe8Q98wT5JZdqG35iJpht_MJ74vy74IKAWI-nJVoku4xlRWALoEWQKIT9lMNEYWldLyiN9Sz4taafU5O4lxxUBlFMyyp4dp8J3vvcPkpzHfYFrGHMcup20il7zL_ZgorCnhMHC1WWKkyM387vfb69-rgY8F5oyMGF5yhqaXeJYd9zhEOj_cp9nTj-vHxc_i9v7m1-LqtnAaIBUt0bxtqrauncO2FX2jpaZ2LlWru6bRugcydcfdFqpGGN2ZDiSqunIKhejlafZ1v3cTpuctxWTXPjoaBhxp2kZbzUEpo9THYKONUXIHfvsvKKCphOGvSUb1HnVhijFQbzfBr9kEhuwuGLuyh2DsLhgL0rLvPHdxkMDocOgDjs7Hf8O10UYYYO77niN28I-nYKPzNDrqfOBkbDf5D5TeAZ6BqAw</recordid><startdate>20050501</startdate><enddate>20050501</enddate><creator>Suzuki, A.</creator><creator>Saddock, N.D.</creator><creator>Jones, J.W.</creator><creator>Pollock, T.M.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7TB</scope><scope>7U5</scope><scope>FR3</scope><scope>L7M</scope><scope>H8D</scope></search><sort><creationdate>20050501</creationdate><title>Solidification paths and eutectic intermetallic phases in Mg–Al–Ca ternary alloys</title><author>Suzuki, A. ; Saddock, N.D. ; Jones, J.W. ; Pollock, T.M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c500t-bee9b82b66ccabb1f8535eb934b5d8855f0e76d853b028175d7d03a462c4a11f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Aluminum</topic><topic>Applied sciences</topic><topic>Eutectic temperature</topic><topic>Exact sciences and technology</topic><topic>Invariants</topic><topic>Laves phases</topic><topic>Liquidus</topic><topic>Liquidus projection</topic><topic>Magnesium alloys</topic><topic>Magnesium base alloys</topic><topic>Metals. Metallurgy</topic><topic>Phase transformations</topic><topic>Solidification</topic><topic>TEM</topic><topic>Ternary alloys</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Suzuki, A.</creatorcontrib><creatorcontrib>Saddock, N.D.</creatorcontrib><creatorcontrib>Jones, J.W.</creatorcontrib><creatorcontrib>Pollock, T.M.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Aerospace Database</collection><jtitle>Acta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Suzuki, A.</au><au>Saddock, N.D.</au><au>Jones, J.W.</au><au>Pollock, T.M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Solidification paths and eutectic intermetallic phases in Mg–Al–Ca ternary alloys</atitle><jtitle>Acta materialia</jtitle><date>2005-05-01</date><risdate>2005</risdate><volume>53</volume><issue>9</issue><spage>2823</spage><epage>2834</epage><pages>2823-2834</pages><issn>1359-6454</issn><eissn>1873-2453</eissn><abstract>The solidification of Mg–Al–Ca ternary alloys in the α-Mg solidification region was investigated by microstructural and thermal analysis, and the liquidus projection was determined. The liquidus temperature decreases with additions of Al and Ca. Solidification is terminated with the formation of C14 (Mg
2Ca), C36 ((Mg,Al)
2Ca) or A12 (β-Mg
17Al
12) eutectic compounds, in the order of increasing Al content. The L
→
α
+
C36 eutectic has a saddle point at 807
K, and with decreasing temperature, two ternary invariant transformations, L
→
α
+
C14
+
C36 (787
K) and L
+
C36
→
α
+
A12 (725
K) are observed. The stability of the intermetallic C36 phase during annealing at 573
K was examined in die-cast Mg–5Al–3Ca based alloys. The C36 phase transformed to the C15 (Al
2Ca) phase by a shear-assisted mechanism.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.actamat.2005.03.001</doi><tpages>12</tpages></addata></record> |
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| ispartof | Acta materialia, 2005-05, Vol.53 (9), p.2823-2834 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Aluminum Applied sciences Eutectic temperature Exact sciences and technology Invariants Laves phases Liquidus Liquidus projection Magnesium alloys Magnesium base alloys Metals. Metallurgy Phase transformations Solidification TEM Ternary alloys |
| title | Solidification paths and eutectic intermetallic phases in Mg–Al–Ca ternary alloys |
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