Effect of strontium and solidifi cation rate on eutectic grain structure in an Al-13 wt% Si alloy
The influence of strontium addition and solidification rate on eutectic grain structure in a near-eutectic Al-Si alloy was investigated. The characteristic temperature of eutectic nucleation (TN), minimum temperature prior to recalescence (TM), and the growth temperature (TG) during cooling were det...
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| Format: | Article |
| Language: | English |
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Foundry Journal Agency
2009-08-01
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| Series: | China Foundry |
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| Online Access: | http://www.foundryworld.com/uploadfile/200912130822365.pdf |
| _version_ | 1818528311164272640 |
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| author | Liao Hengcheng Bi Juanjuan Zhang Min |
| author_facet | Liao Hengcheng Bi Juanjuan Zhang Min |
| author_sort | Liao Hengcheng |
| collection | DOAJ |
| description | The influence of strontium addition and solidification rate on eutectic grain structure in a near-eutectic Al-Si alloy was investigated. The characteristic temperature of eutectic nucleation (TN), minimum temperature prior to recalescence (TM), and the growth temperature (TG) during cooling were determined by quantitative thermal analysis. All characteristic temperatures were found to decrease continuously with increasing Sr content and solidifi cation rate. Microstructural analysis also revealed that the eutectic grain size decreases with increasing Sr content and solidifi cation rate. Such eutectic grain refi nement is attributed to the increased actual under-cooling ahead of the liquid/solid interface during solidifi cation. |
| first_indexed | 2024-12-11T06:48:08Z |
| format | Article |
| id | doaj.art-8df58babda6d44d897d786f000f92138 |
| institution | Directory Open Access Journal |
| issn | 1672-6421 |
| language | English |
| last_indexed | 2024-12-11T06:48:08Z |
| publishDate | 2009-08-01 |
| publisher | Foundry Journal Agency |
| record_format | Article |
| series | China Foundry |
| spelling | doaj.art-8df58babda6d44d897d786f000f921382022-12-22T01:17:00ZengFoundry Journal AgencyChina Foundry1672-64212009-08-0163226231Effect of strontium and solidifi cation rate on eutectic grain structure in an Al-13 wt% Si alloyLiao HengchengBi JuanjuanZhang MinThe influence of strontium addition and solidification rate on eutectic grain structure in a near-eutectic Al-Si alloy was investigated. The characteristic temperature of eutectic nucleation (TN), minimum temperature prior to recalescence (TM), and the growth temperature (TG) during cooling were determined by quantitative thermal analysis. All characteristic temperatures were found to decrease continuously with increasing Sr content and solidifi cation rate. Microstructural analysis also revealed that the eutectic grain size decreases with increasing Sr content and solidifi cation rate. Such eutectic grain refi nement is attributed to the increased actual under-cooling ahead of the liquid/solid interface during solidifi cation.http://www.foundryworld.com/uploadfile/200912130822365.pdfAl-Si alloysmicrostructuresolidificationeutectic grainstrontium |
| spellingShingle | Liao Hengcheng Bi Juanjuan Zhang Min Effect of strontium and solidifi cation rate on eutectic grain structure in an Al-13 wt% Si alloy China Foundry Al-Si alloys microstructure solidification eutectic grain strontium |
| title | Effect of strontium and solidifi cation rate on eutectic grain structure in an Al-13 wt% Si alloy |
| title_full | Effect of strontium and solidifi cation rate on eutectic grain structure in an Al-13 wt% Si alloy |
| title_fullStr | Effect of strontium and solidifi cation rate on eutectic grain structure in an Al-13 wt% Si alloy |
| title_full_unstemmed | Effect of strontium and solidifi cation rate on eutectic grain structure in an Al-13 wt% Si alloy |
| title_short | Effect of strontium and solidifi cation rate on eutectic grain structure in an Al-13 wt% Si alloy |
| title_sort | effect of strontium and solidifi cation rate on eutectic grain structure in an al 13 wt si alloy |
| topic | Al-Si alloys microstructure solidification eutectic grain strontium |
| url | http://www.foundryworld.com/uploadfile/200912130822365.pdf |
| work_keys_str_mv | AT liaohengcheng effectofstrontiumandsolidificationrateoneutecticgrainstructureinanal13wtsialloy AT bijuanjuan effectofstrontiumandsolidificationrateoneutecticgrainstructureinanal13wtsialloy AT zhangmin effectofstrontiumandsolidificationrateoneutecticgrainstructureinanal13wtsialloy |