Lamellar eutectic growth with anisotropic interphase boundaries: Experimental study using the rotating directional solidification method
We report on an experimental study of the effects of interphase boundary anisotropy on eutectic microstructures using a new methodology called rotating directional solidification (RDS), which consists of rotating a thin sample with respect to a fixed unidirectional thermal gradient. The systems used...
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| Veröffentlicht in: | Acta materialia 2012-04, Vol.60 (6-7), p.3206-3214 |
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| container_end_page | 3214 |
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| container_issue | 6-7 |
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| container_title | Acta materialia |
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| creator | Akamatsu, S. Bottin-Rousseau, S. Şerefoğlu, M. Faivre, G. |
| description | We report on an experimental study of the effects of interphase boundary anisotropy on eutectic microstructures using a new methodology called rotating directional solidification (RDS), which consists of rotating a thin sample with respect to a fixed unidirectional thermal gradient. The systems used are thin, large eutectic grains of the CBr4–C2Cl6 and In–In2Bi lamellar eutectic alloys. The shape of the observed RDS lamellar trajectories turns out to be a reproducible eutectic-grain-dependent feature, in agreement with the theoretical prediction that these trajectories are approximately homothetic to the Wulff form of the interphase boundary in the sample plane. We show that different modes of lamellar growth, ranging from quasi-isotropic to (crystallographically) locked, exist in different eutectic grains of the two alloys studied. A detailed characterisation of these modes is given, with particular attention to the as-yet poorly understood aspects of locked lamellar growth. |
| doi_str_mv | 10.1016/j.actamat.2012.02.033 |
| format | Article |
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The systems used are thin, large eutectic grains of the CBr4–C2Cl6 and In–In2Bi lamellar eutectic alloys. The shape of the observed RDS lamellar trajectories turns out to be a reproducible eutectic-grain-dependent feature, in agreement with the theoretical prediction that these trajectories are approximately homothetic to the Wulff form of the interphase boundary in the sample plane. We show that different modes of lamellar growth, ranging from quasi-isotropic to (crystallographically) locked, exist in different eutectic grains of the two alloys studied. A detailed characterisation of these modes is given, with particular attention to the as-yet poorly understood aspects of locked lamellar growth.</description><identifier>ISSN: 1359-6454</identifier><identifier>EISSN: 1873-2453</identifier><identifier>DOI: 10.1016/j.actamat.2012.02.033</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Chemical Sciences ; Condensed Matter ; Directional solidification ; Eutectic solidification ; Exact sciences and technology ; Interphase boundaries ; Materials Science ; Metals. 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The systems used are thin, large eutectic grains of the CBr4–C2Cl6 and In–In2Bi lamellar eutectic alloys. The shape of the observed RDS lamellar trajectories turns out to be a reproducible eutectic-grain-dependent feature, in agreement with the theoretical prediction that these trajectories are approximately homothetic to the Wulff form of the interphase boundary in the sample plane. We show that different modes of lamellar growth, ranging from quasi-isotropic to (crystallographically) locked, exist in different eutectic grains of the two alloys studied. A detailed characterisation of these modes is given, with particular attention to the as-yet poorly understood aspects of locked lamellar growth.</description><subject>Applied sciences</subject><subject>Chemical Sciences</subject><subject>Condensed Matter</subject><subject>Directional solidification</subject><subject>Eutectic solidification</subject><subject>Exact sciences and technology</subject><subject>Interphase boundaries</subject><subject>Materials Science</subject><subject>Metals. 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Metallurgy</topic><topic>Nonlinear Sciences</topic><topic>Physics</topic><topic>Solidification microstructures</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Akamatsu, S.</creatorcontrib><creatorcontrib>Bottin-Rousseau, S.</creatorcontrib><creatorcontrib>Şerefoğlu, M.</creatorcontrib><creatorcontrib>Faivre, G.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Acta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Akamatsu, S.</au><au>Bottin-Rousseau, S.</au><au>Şerefoğlu, M.</au><au>Faivre, G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Lamellar eutectic growth with anisotropic interphase boundaries: Experimental study using the rotating directional solidification method</atitle><jtitle>Acta materialia</jtitle><date>2012-04-01</date><risdate>2012</risdate><volume>60</volume><issue>6-7</issue><spage>3206</spage><epage>3214</epage><pages>3206-3214</pages><issn>1359-6454</issn><eissn>1873-2453</eissn><abstract>We report on an experimental study of the effects of interphase boundary anisotropy on eutectic microstructures using a new methodology called rotating directional solidification (RDS), which consists of rotating a thin sample with respect to a fixed unidirectional thermal gradient. The systems used are thin, large eutectic grains of the CBr4–C2Cl6 and In–In2Bi lamellar eutectic alloys. The shape of the observed RDS lamellar trajectories turns out to be a reproducible eutectic-grain-dependent feature, in agreement with the theoretical prediction that these trajectories are approximately homothetic to the Wulff form of the interphase boundary in the sample plane. We show that different modes of lamellar growth, ranging from quasi-isotropic to (crystallographically) locked, exist in different eutectic grains of the two alloys studied. A detailed characterisation of these modes is given, with particular attention to the as-yet poorly understood aspects of locked lamellar growth.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.actamat.2012.02.033</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-0723-4523</orcidid><oa>free_for_read</oa></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Chemical Sciences Condensed Matter Directional solidification Eutectic solidification Exact sciences and technology Interphase boundaries Materials Science Metals. Metallurgy Nonlinear Sciences Physics Solidification microstructures |
| title | Lamellar eutectic growth with anisotropic interphase boundaries: Experimental study using the rotating directional solidification method |
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