Liquid phase separation, solidification and phase transformations of Gd–Ti and Gd–Ti–Al–Cu alloys
Phase equilibria of the quaternary Gd–Ti–Al–Cu system have been studied with particular respect to solidification and phase separation phenomena in metallic glasses. Along the section Gd55−xTixAl25Cu20 the primary solidifying phase changes from Gd2CuAl (x=0) toward α-Ti (x≥10) with rising Ti-fractio...
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| Veröffentlicht in: | Calphad 2014-03, Vol.44, p.21-25 |
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| creator | Schmitz, S. Lindenkreuz, H.-G. Löser, W. Büchner, B. |
| description | Phase equilibria of the quaternary Gd–Ti–Al–Cu system have been studied with particular respect to solidification and phase separation phenomena in metallic glasses. Along the section Gd55−xTixAl25Cu20 the primary solidifying phase changes from Gd2CuAl (x=0) toward α-Ti (x≥10) with rising Ti-fraction x. This is accompanied by an upturn of the liquidus temperature from TL=745°C to TL>1100°C. The miscibility gap predicted from thermodynamic calculations for Gd55−xTixAl25Cu20 melts at intermediate Ti-fractions was not verified experimentally. Unlike binary Gd–Ti melts, levitated Gd–Ti–Al–Cu droplets do not exhibit liquid phase separation features after quenching from different holding temperatures, even at high melt undercooling up to 200K prior to solidification. |
| doi_str_mv | 10.1016/j.calphad.2013.06.010 |
| format | Article |
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Along the section Gd55−xTixAl25Cu20 the primary solidifying phase changes from Gd2CuAl (x=0) toward α-Ti (x≥10) with rising Ti-fraction x. This is accompanied by an upturn of the liquidus temperature from TL=745°C to TL>1100°C. The miscibility gap predicted from thermodynamic calculations for Gd55−xTixAl25Cu20 melts at intermediate Ti-fractions was not verified experimentally. 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Unlike binary Gd–Ti melts, levitated Gd–Ti–Al–Cu droplets do not exhibit liquid phase separation features after quenching from different holding temperatures, even at high melt undercooling up to 200K prior to solidification.</description><subject>Computer simulation</subject><subject>Droplets</subject><subject>Electromagnetic levitation</subject><subject>Liquid phases</subject><subject>Melts</subject><subject>Metallic glasses</subject><subject>Phase diagram data</subject><subject>Phase transformations</subject><subject>Separation</subject><subject>Solidification</subject><subject>Titanium</subject><subject>Titanium alloys</subject><subject>Undercooled melts</subject><issn>0364-5916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqFUMtOwzAQ9AEkSuETkHLkQIIdJ05yQlUFBakSl3K2HHstXLlxaidIvfEP_CFfgvvg3MvsrnZmtDsI3RGcEUzY4zqTwvafQmU5JjTDLMMEX6AJpqxIy4awK3QdwhpjXFFaTJBZmu1oVBIlAZIAvfBiMK57SIKzRhlt5GFORPdPGrzognZ-c1iExOlkoX6_f1bmQDr1EWY2wnxMhLVuF27QpRY2wO2pTtHHy_Nq_pou3xdv89kylbQqh1RqWck2L3VDQVaMsqZulCZ5waAUjcQtlMA0YzlWUrd17Am0jcp1ISsghaRTdH_07b3bjhAGvjFBgrWiAzcGTlhFGC1YXp-nlhQ3NWniGVNUHqnSuxA8aN57sxF-xwnm--T5mp-S5_vkOWY8Jh91T0cdxJe_DHgepIFOgjIe5MCVM2cc_gA5CZYz</recordid><startdate>201403</startdate><enddate>201403</enddate><creator>Schmitz, S.</creator><creator>Lindenkreuz, H.-G.</creator><creator>Löser, W.</creator><creator>Büchner, B.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7SC</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>201403</creationdate><title>Liquid phase separation, solidification and phase transformations of Gd–Ti and Gd–Ti–Al–Cu alloys</title><author>Schmitz, S. ; Lindenkreuz, H.-G. ; Löser, W. ; Büchner, B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c375t-cfc7cb25f93ec7636989df1246e5a9c0be5e6f6620dcfb8e6f1eb9d2f4c7e14c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Computer simulation</topic><topic>Droplets</topic><topic>Electromagnetic levitation</topic><topic>Liquid phases</topic><topic>Melts</topic><topic>Metallic glasses</topic><topic>Phase diagram data</topic><topic>Phase transformations</topic><topic>Separation</topic><topic>Solidification</topic><topic>Titanium</topic><topic>Titanium alloys</topic><topic>Undercooled melts</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schmitz, S.</creatorcontrib><creatorcontrib>Lindenkreuz, H.-G.</creatorcontrib><creatorcontrib>Löser, W.</creatorcontrib><creatorcontrib>Büchner, B.</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Calphad</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Schmitz, S.</au><au>Lindenkreuz, H.-G.</au><au>Löser, W.</au><au>Büchner, B.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Liquid phase separation, solidification and phase transformations of Gd–Ti and Gd–Ti–Al–Cu alloys</atitle><jtitle>Calphad</jtitle><date>2014-03</date><risdate>2014</risdate><volume>44</volume><spage>21</spage><epage>25</epage><pages>21-25</pages><issn>0364-5916</issn><abstract>Phase equilibria of the quaternary Gd–Ti–Al–Cu system have been studied with particular respect to solidification and phase separation phenomena in metallic glasses. Along the section Gd55−xTixAl25Cu20 the primary solidifying phase changes from Gd2CuAl (x=0) toward α-Ti (x≥10) with rising Ti-fraction x. This is accompanied by an upturn of the liquidus temperature from TL=745°C to TL>1100°C. The miscibility gap predicted from thermodynamic calculations for Gd55−xTixAl25Cu20 melts at intermediate Ti-fractions was not verified experimentally. Unlike binary Gd–Ti melts, levitated Gd–Ti–Al–Cu droplets do not exhibit liquid phase separation features after quenching from different holding temperatures, even at high melt undercooling up to 200K prior to solidification.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.calphad.2013.06.010</doi><tpages>5</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Computer simulation Droplets Electromagnetic levitation Liquid phases Melts Metallic glasses Phase diagram data Phase transformations Separation Solidification Titanium Titanium alloys Undercooled melts |
| title | Liquid phase separation, solidification and phase transformations of Gd–Ti and Gd–Ti–Al–Cu alloys |
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